Commit v1

.gitignore

@@ -0,0 +1,9 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch
+.pioenvs
+.piolibdeps
+.clang_complete
+.gcc-flags.json

.vscode/extensions.json

@@ -0,0 +1,10 @@
+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": [
+        "platformio.platformio-ide"
+    ],
+    "unwantedRecommendations": [
+        "ms-vscode.cpptools-extension-pack"
+    ]
+}

build/upload.sh

@@ -0,0 +1 @@
+avrdude -v -patmega2560 -cwiring -P/dev/ttyUSB0 -b115200 -D -Uflash:w:firmware.hex:i

include/README

@@ -0,0 +1,39 @@
+
+This directory is intended for project header files.
+
+A header file is a file containing C declarations and macro definitions
+to be shared between several project source files. You request the use of a
+header file in your project source file (C, C++, etc) located in `src` folder
+by including it, with the C preprocessing directive `#include'.
+
+```src/main.c
+
+#include "header.h"
+
+int main (void)
+{
+ ...
+}
+```
+
+Including a header file produces the same results as copying the header file
+into each source file that needs it. Such copying would be time-consuming
+and error-prone. With a header file, the related declarations appear
+in only one place. If they need to be changed, they can be changed in one
+place, and programs that include the header file will automatically use the
+new version when next recompiled. The header file eliminates the labor of
+finding and changing all the copies as well as the risk that a failure to
+find one copy will result in inconsistencies within a program.
+
+In C, the usual convention is to give header files names that end with `.h'.
+It is most portable to use only letters, digits, dashes, and underscores in
+header file names, and at most one dot.
+
+Read more about using header files in official GCC documentation:
+
+* Include Syntax
+* Include Operation
+* Once-Only Headers
+* Computed Includes
+
+https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html

lib/MD_MAX72XX/.gitignore

@@ -0,0 +1,73 @@
+#OS junk files
+[Tt]humbs.db
+*.DS_Store
+#.gitignore
+
+#dOxygen project documentation and related files
+#[Dd]oc/html/
+#[Mm]edia/photo/
+[Mm]edia/music/
+[Mm]edia/video/
+
+#Stuff
+*.zip
+
+#Visual Studio files
+*.sln
+*.vcxproj
+*.filters
+*.vsarduino.h
+*.[Oo]bj
+*.user
+*.aps
+*.pch
+*.vspscc
+*.vssscc
+*_i.c
+*_p.c
+*.ncb
+*.suo
+*.tlb
+*.tlh
+*.bak
+*.[Cc]ache
+*.ilk
+*.log
+*.lib
+*.sbr
+*.sdf
+*.opensdf
+*.unsuccessfulbuild
+*.vmps.xml
+ipch/
+[Oo]bj/
+[Bb]in
+[Dd]ebug*/
+[Rr]elease*/
+Ankh.NoLoad
+.vs/
+
+#Video files
+*.mov
+*.mp3
+*.mp4
+*.wlmp
+
+#Pelles C files
+*.ppj
+*.tag
+*.ppx
+
+#Additional Atmel Studio files
+*.atsln
+*.atsuo
+*.cppproj
+
+#Project files
+[Bb]uild/
+
+# Office Temp Files
+~$*
+
+# visual studio database projects
+*.dbmdl

lib/MD_MAX72XX/Font Builder/greek_var_single.txt

@@ -0,0 +1,681 @@
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+
+.CHAR 33
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+ 
+*   *
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+  *
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+.END

lib/MD_MAX72XX/Font Builder/katakana_var_single.txt

@@ -0,0 +1,908 @@
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+ 
+ 
+ 
+.CHAR 236
+ 
+  *
+ ***
+* *
+* * *
+ ***
+  *
+ 
+.CHAR 237
+ *
+ *
+***
+ *
+***
+ *
+ ****
+ 
+.CHAR 238
+ ***
+ 
+* **
+**  *
+*   *
+*   *
+*   *
+ 
+.CHAR 239
+ * *
+ 
+ ***
+*   *
+*   *
+*   *
+ ***
+ 
+.CHAR 240
+ 
+ 
+* **
+**  *
+*   *
+****
+*
+*
+.CHAR 241
+ 
+ 
+ ** *
+*  **
+*   *
+ ****
+    *
+    *
+.CHAR 242
+ ***
+*   *
+*****
+*   *
+*   *
+*   *
+ ***
+ 
+.CHAR 243
+ 
+ 
+ 
+ * **
+* * *
+** *
+ 
+ 
+.CHAR 244
+ 
+ 
+ ***
+*   *
+*   *
+ * *
+** **
+ 
+.CHAR 245
+ * *
+ 
+*   *
+*   *
+*   *
+*  **
+ ** *
+ 
+.CHAR 246
+*****
+*
+ *
+  *
+ *
+*
+*****
+ 
+.CHAR 247
+ 
+*****
+ * *
+ * *
+ * *
+ * *
+*  **
+ 
+.CHAR 248
+*****
+ 
+*   *
+ * *
+  *
+ * *
+*   *
+ 
+.CHAR 249
+ 
+ 
+ 
+*   *
+*   *
+ ****
+    *
+ ***
+.CHAR 250
+ 
+    *
+****
+  *
+*****
+  *
+  *
+ 
+.CHAR 251
+.NOTE  'Exit (jap)'
+ 
+ 
+*****
+ *
+ ****
+ *  *
+*   *
+ 
+.CHAR 252
+.NOTE  'Entrance (jap)'
+ 
+ 
+*****
+* * *
+*****
+*   *
+*   *
+ 
+.CHAR 253
+.NOTE  'divide'
+ 
+  *
+ 
+*****
+ 
+  *
+ 
+ 
+.CHAR 255
+.NOTE  '5x7 block'
+*****
+*****
+*****
+*****
+*****
+*****
+*****
+.END

lib/MD_MAX72XX/Font Builder/make_font.bat

@@ -0,0 +1,11 @@
+txt2font arabic_var_single
+txt2font greek_var_single
+txt2font katakana_var_single
+txt2font LCD5x7_fixed_single
+txt2font modernArabic_var_single
+txt2font seg7_fixed_double
+txt2font seg7_fixed_single
+txt2font symbol_var_single
+txt2font sys_fixed_single
+txt2font sys_var_double
+txt2font sys_var_single

lib/MD_MAX72XX/Font Builder/seg7_fixed_double.txt

@@ -0,0 +1,458 @@
+.NAME seg7_fixed_double
+.FONT_HEIGHT 8
+.HEIGHT 2
+.WIDTH 2
+.CHAR 32
+.NOTE  'Space'
+ 
+.CHAR 46
+.NOTE  '.'
+
+
+
+
+
+
+
+
+
+
+
+
+**
+**
+ 
+ 
+.CHAR 58
+.NOTE  ':'
+  
+ 
+ 
+ 
+ 
+**
+**
+ 
+
+**
+**
+ 
+ 
+ 
+ 
+ 
+.CHAR 124
+.NOTE  '|'
+**
+**
+**
+**
+**
+**
+**
+**
+**
+**
+**
+**
+**
+**
+**
+**
+.CHAR 48
+.WIDTH 10
+.NOTE  '0'
+  ******
+ ********
+**      **
+**      **
+**      **
+**      **
+**      **
+ *      *
+ *      *
+**      **
+**      **
+**      **
+**      **
+**      **
+ ********
+  ******
+.CHAR 49
+.NOTE  '1'
+ 
+        *
+        **
+        **
+        **
+        **
+        **
+        *
+        *
+        **
+        **
+        **
+        **
+        **
+        *
+ 
+.CHAR 50
+.NOTE  '2'
+  ******
+ ********
+        **
+        **
+        **
+        **
+        **
+  *******
+ *******
+**
+**
+**
+**
+**
+ ********
+  ******
+.CHAR 51
+.NOTE  '3'
+  ******
+ ********
+        **
+        **
+        **
+        **
+        **
+ ********
+ ********
+        **
+        **
+        **
+        **
+        **
+ ********
+  ******
+.CHAR 52
+.NOTE  '4'
+ 
+ *      *
+**      **
+**      **
+**      **
+**      **
+**      **
+ ********
+  *******
+        **
+        **
+        **
+        **
+        **
+        *
+ 
+.CHAR 53
+.NOTE  '5'
+  ******
+ ********
+**
+**
+**
+**
+**
+ *******
+  *******
+        **
+        **
+        **
+        **
+        **
+ ********
+  ******
+.CHAR 54
+.NOTE  '6'
+  ******
+ ********
+**
+**
+**
+**
+**
+ *******
+ ********
+**      **
+**      **
+**      **
+**      **
+**      **
+ ********
+  ******
+.CHAR 55
+.NOTE  '7'
+  ******
+ ********
+        **
+        **
+        **
+        **
+        **
+        *
+        *
+        **
+        **
+        **
+        **
+        **
+        *
+ 
+.CHAR 56
+.NOTE  '8'
+  ******
+ ********
+**      **
+**      **
+**      **
+**      **
+**      **
+ ********
+ ********
+**      **
+**      **
+**      **
+**      **
+**      **
+ ********
+  ******
+.CHAR 57
+.NOTE  '9'
+  ******
+ ********
+**      **
+**      **
+**      **
+**      **
+**      **
+ ********
+  *******
+        **
+        **
+        **
+        **
+        **
+ ********
+  ******
+.CHAR 65
+.NOTE  'A'
+  ******
+ ********
+**      **
+**      **
+**      **
+**      **
+**      **
+ ********
+ ********
+**      **
+**      **
+**      **
+**      **
+**      **
+ *      *
+ 
+.CHAR 66
+.NOTE  'B'
+ 
+ *
+**
+**
+**
+**
+**
+ *******
+ ********
+**      **
+**      **
+**      **
+**      **
+**      **
+ ********
+  ******
+.CHAR 67
+.NOTE  'C'
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+  ******
+ ********
+**
+**
+**
+**
+**
+ ********
+  ******
+.CHAR 68
+.NOTE  'D'
+ 
+        *
+        **
+        **
+        **
+        **
+        **
+  *******
+ ********
+**      **
+**      **
+**      **
+**      **
+**      **
+ ********
+  ******
+.CHAR 69
+.NOTE  'E'
+  ******
+ ********
+**
+**
+**
+**
+**
+ ********
+ ********
+**
+**
+**
+**
+**
+ ********
+  ******
+.CHAR 70
+.NOTE  'F'
+  ******
+ ********
+**
+**
+**
+**
+**
+ ********
+ ********
+**
+**
+**
+**
+**
+ *
+ 
+.CHAR 97
+.NOTE  'a'
+  ******
+ ********
+**      **
+**      **
+**      **
+**      **
+**      **
+ ********
+ ********
+**      **
+**      **
+**      **
+**      **
+**      **
+ *      *
+ 
+.CHAR 98
+.NOTE  'b'
+ 
+ *
+**
+**
+**
+**
+**
+ *******
+ ********
+**      **
+**      **
+**      **
+**      **
+**      **
+ ********
+  ******
+.CHAR 99
+.NOTE  'c'
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+  ******
+ ********
+**
+**
+**
+**
+**
+ ********
+  ******
+.CHAR 100
+.NOTE  'd'
+        *
+        **
+        **
+        **
+        **
+        **
+  *******
+ ********
+**      **
+**      **
+**      **
+**      **
+**      **
+ ********
+  ******
+.CHAR 101
+.NOTE  'e'
+  ******
+ ********
+**
+**
+**
+**
+**
+ ********
+ ********
+**
+**
+**
+**
+**
+ ********
+  ******
+.CHAR 102
+.NOTE  'f'
+  ******
+ ********
+**
+**
+**
+**
+**
+ ********
+ ********
+**
+**
+**
+**
+**
+ *
+ 
+.END

lib/MD_MAX72XX/Font Builder/seg7_fixed_single.txt

@@ -0,0 +1,259 @@
+.NAME seg7_fixed_single
+.FONT_HEIGHT 8
+.HEIGHT 1
+.WIDTH 1
+.CHAR 32
+.NOTE  'Space'
+ 
+.CHAR 46
+.NOTE  '.'
+ 
+ 
+ 
+ 
+ 
+ 
+*
+ 
+.CHAR 58
+.NOTE  ':'
+ 
+ 
+*
+ 
+*
+ 
+ 
+ 
+.CHAR 124
+.NOTE  '|'
+*
+*
+*
+*
+*
+*
+*
+ 
+.CHAR 48
+.WIDTH 5
+.NOTE  '0'
+*****
+*   *
+*   *
+*   *
+*   *
+*   *
+*****
+ 
+.CHAR 49
+.NOTE  '1'
+  *
+  *
+  *
+  *
+  *
+  *
+  *
+ 
+.CHAR 50
+.NOTE  '2'
+*****
+    *
+    *
+*****
+*
+*
+*****
+ 
+.CHAR 51
+.NOTE  '3'
+*****
+    *
+    *
+*****
+    *
+    *
+*****
+ 
+.CHAR 52
+.NOTE  '4'
+*   *
+*   *
+*   *
+*****
+    *
+    *
+    *
+ 
+.CHAR 53
+.NOTE  '5'
+*****
+*
+*
+*****
+    *
+    *
+*****
+ 
+.CHAR 54
+.NOTE  '6'
+*****
+*
+*
+*****
+*   *
+*   *
+*****
+ 
+.CHAR 55
+.NOTE  '7'
+*****
+    *
+    *
+    *
+    *
+    *
+    *
+ 
+.CHAR 56
+.NOTE  '8'
+*****
+*   *
+*   *
+*****
+*   *
+*   *
+*****
+ 
+.CHAR 57
+.NOTE  '9'
+*****
+*   *
+*   *
+*****
+    *
+    *
+*****
+ 
+.CHAR 65
+.NOTE  'A'
+*****
+*   *
+*   *
+*****
+*   *
+*   *
+*   *
+ 
+.CHAR 66
+.NOTE  'B'
+****
+*   *
+*   *
+****
+*   *
+*   *
+****
+ 
+.CHAR 67
+.NOTE  'C'
+*****
+*
+*
+*
+*
+*
+*****
+ 
+.CHAR 68
+.NOTE  'D'
+****
+*   *
+*   *
+*   *
+*   *
+*   *
+****
+ 
+.CHAR 69
+.NOTE  'E'
+*****
+*
+*
+*****
+*
+*
+*****
+ 
+.CHAR 70
+.NOTE  'F'
+*****
+*
+*
+*****
+*
+*
+*
+ 
+.CHAR 97
+.NOTE  'a'
+*****
+*   *
+*   *
+*****
+*   *
+*   *
+*   *
+ 
+.CHAR 98
+.NOTE  'b'
+****
+*   *
+*   *
+****
+*   *
+*   *
+****
+ 
+.CHAR 99
+.NOTE  'c'
+*****
+*
+*
+*
+*
+*
+*****
+ 
+.CHAR 100
+.NOTE  'd'
+****
+*   *
+*   *
+*   *
+*   *
+*   *
+****
+ 
+.CHAR 101
+.NOTE  'e'
+*****
+*
+*
+*****
+*
+*
+*****
+ 
+.CHAR 102
+.NOTE  'f'
+*****
+*
+*
+*****
+*
+*
+*
+ 
+.END

lib/MD_MAX72XX/Font Builder/src/.mbedignore

@@ -0,0 +1 @@
+*

lib/MD_MAX72XX/Font Builder/src/font2txt/font2txt.c

@@ -0,0 +1,280 @@
+// Font 2 Text for MD_MAX72xx library
+//
+// Quick and not very robust code to create a font defintion text file
+// from an existing font data table. This is considered a one-off task
+// followed by some manual editing of the file.
+// The file is expected to be in the similar format to the output from
+// txt2font. Specifically, 
+// - it is expected that each character is on one data line in order to 
+//   recognise specific parts, like comments.
+// - it expects all the ascii codes to be present (ie, it does not respect 
+//   the version information at the start of the table)
+//
+// The shared header file means that some elements in this 
+// code are reversed (eg, the IN file extension is used as the OUT file 
+// extension). Each font element is output as it is completed, without 
+// buffering the while ASCII set.
+//
+#include "txt2font.h"
+
+// Global data ---------------
+Global_t	G;
+ASCIIDef_t	font = { 0 };
+
+// Code ----------------------
+void usage(void)
+{
+	printf("\nusage: font2txt <root_name>\n");
+	printf("\n\ninput file  <root_name>.h");
+	printf("\noutput file <root_name>.txt");
+	printf("\n");
+
+	return;
+}
+
+int cmdLine(int argc, char *argv[])
+// process the command line parameter
+{
+	if (argc != 2)
+		return(1);
+
+	strcpy(G.fileRoot, argv[1]);
+
+	return(0);
+}
+
+int initialise(void)
+// one time initiualisation code
+{
+	char	szFile[FILE_NAME_SIZE];
+
+	// we have no font definition
+	font.comment[0] = NUL;
+	font.size = 0;
+	font.buf = malloc(100*sizeof(font.buf[0])); // pick a big number...
+
+	// open the file for reading
+	strcpy(szFile, G.fileRoot);
+	strcat(szFile, OUT_FILE_EXT);
+	if ((G.fpIn = fopen(szFile, "r")) == NULL)
+	{
+		printf("\nCannot open input ""%s\n""", szFile);
+		return(2);
+	}
+
+	// open the file for writing
+	strcpy(szFile, G.fileRoot);
+	strcat(szFile, IN_FILE_EXT);
+	if ((G.fpOut = fopen(szFile, "w")) == NULL)
+	{
+		printf("\nCannot open output ""%s\n""", szFile);
+		return(3);
+	}
+
+	// other stuff
+	G.name[0] = NUL;
+	G.doubleHeight = 0;
+	G.bufSize = SINGLE_HEIGHT;
+	G.fixedWidth = 0;
+
+	return(0);
+}
+
+void trimBuffer(char *buf)
+// trim the buffer specified of all trailing white space
+{
+	int	i = strlen(buf)-1;
+
+	while (i > 0 && isspace(buf[i]))
+		buf[i--] = NUL;
+
+	return;
+}
+
+void padBuffer(char *buf, unsigned int len)
+// pad the supplied buffer with spaces up to the length specified
+{
+	if (strlen(buf) < len)
+	{
+		for (unsigned int j=strlen(buf); j<len; j++)
+			buf[j] = SPACE;
+	}
+	buf[len] = NUL;
+
+	return;
+}
+
+unsigned int normaliseBuffers(void)
+// normalise all the input buffers to the same size
+{
+	unsigned int	max = 0;
+
+	if (G.fixedWidth == 0)
+	{
+		for (unsigned int i=0; i<G.bufSize; i++)
+			max = max < strlen(G.buf[i]) ? max = strlen(G.buf[i]) : max;
+	}
+	else
+		max = G.fixedWidth;
+
+	// now make them all the same size
+	for (unsigned int i=0; i<G.bufSize; i++)
+	{
+		padBuffer(G.buf[i], max);
+	}
+
+	return(max);
+}
+
+char *getToken(char *buf)
+// isolate the first token in the buffer and return a pointer to the next non white space after the token
+{
+	while (isspace(*buf) || ispunct(*buf))
+		buf++;
+	while (!isspace(*buf) && !ispunct(*buf))
+		buf++;
+	*buf++ = NUL;
+	while (isspace(*buf) || ispunct(*buf))
+		buf++;
+
+	return(buf);
+}
+
+void saveOutputHeader(void)
+// save the current definition as a font definition header file
+{
+	fprintf(G.fpOut, "%c%s %s\n", DOT, CMD_NAME, G.fileRoot);
+	fprintf(G.fpOut, "%c%s %d\n", DOT, CMD_HEIGHT, (G.doubleHeight ? 2: 1));
+	fprintf(G.fpOut, "%c%s %d\n", DOT, CMD_WIDTH, G.fixedWidth);
+	fprintf(G.fpOut, "%c%s %d %s\n", DOT, CMD_FONTHIGH, G.fontHeight, "<- THIS NEEDS EDITING");
+
+	return;
+}
+
+void saveOutputFooter(void)
+// save the current definition as a font definition header file
+{
+	fprintf(G.fpOut, "%c%s\n", DOT, CMD_END);
+
+	return;
+}
+
+void saveOutputChar(void)
+// Save a single character definition
+{
+	fprintf(G.fpOut, "%c%s %d\n", DOT, CMD_CHAR, G.curCode);
+	fprintf(G.fpOut, "%c%s %s\n", DOT, CMD_NOTE, font.comment);
+
+	if (G.bufSize != 0)
+	{
+		for (unsigned int i=0; i<G.bufSize; i++)
+		{
+			trimBuffer(G.buf[i]);
+			fprintf(G.fpOut, "%s\n", G.buf[i]);
+		}
+	}
+	else		// need at least one line
+		fprintf(G.fpOut, "\n");
+
+	return;
+}
+
+void createFontData(char *cp)
+// the font defintions strings are column data, so each byte will be a 'vertical'
+// stripe of the input buffers. Format is the size followed by size bytes of column data,
+// separated by commas. The comment is found after the data in a '//' comment and following
+// the first '-'.
+{
+	char	*cpNext;
+
+	cpNext = getToken(cp);
+	font.size = atoi(cp);
+	cp = cpNext;
+
+	// get all the data from the input into the font defintion
+	for (unsigned int i=0; i<font.size; i++)
+	{
+		// get the data
+		cpNext = getToken(cp);
+		font.buf[i] = atoi(cp);
+		cp = cpNext;
+	}
+
+	// unpack the column data into the text strings
+	// create each input string [j] in turn from the column definition [i] for the char
+	for (unsigned int i=0; i<SINGLE_HEIGHT; i++)
+	{
+		for (unsigned int j=0; j<font.size; j++)
+			G.buf[i][j] = (font.buf[j] & (1<<i)) ? STAR : SPACE;
+		G.buf[i][font.size] = NUL;	// terminate the string
+	}
+
+	// save the comment - first search up to after the first '-'
+	while ((*cp != '-') && (*cp != NUL))
+		cp++;
+	if (cp != NUL) cp++;
+	strcpy(font.comment, cp);
+
+	return;
+}
+
+void processInput(void)
+// read the input file and process line by line
+{
+	char	c, inLine[INPUT_BUFFER_SIZE];
+
+	// skip to the opening brace then skip end of line
+	do 
+		c = getc(G.fpIn);
+	while ((c != EOF) && (c != '{'));
+	do 
+		c = getc(G.fpIn);
+	while ((c == '\n') || (c == '\r'));
+
+	// now read each line in turn
+	while (!feof(G.fpIn) && (G.curCode < ASCII_SIZE))
+	{
+		fgets(inLine, sizeof(inLine), G.fpIn); 
+
+		// if we have a blank line, get another one
+		trimBuffer(inLine);
+		if (strlen(inLine) == 0) continue;
+
+		// process the buffers into a font definition and write out what we have created			
+		createFontData(inLine);
+		saveOutputChar();
+
+		// reset the font and character buffers, increment current ASCII code
+		for (unsigned int i=0; i<G.bufSize; i++)
+			G.buf[i][0] = NUL;
+		font.size = 0;
+		G.curCode++;
+	}
+
+	return;
+}
+
+int main(int argc, char *argv[])
+{
+	int	ret;
+
+	if (cmdLine(argc, argv))
+	{
+		usage();
+		return(1);
+	}
+
+	if ((ret = initialise()) != 0)
+		return(ret);
+
+	saveOutputHeader();
+	processInput();
+	saveOutputFooter();
+
+
+	// close files and exit
+	fclose(G.fpIn);
+	fclose(G.fpOut);
+
+	return(0);
+}

lib/MD_MAX72XX/Font Builder/src/font2txt/txt2font.h

@@ -0,0 +1,71 @@
+/* Text 2 Font for MD_MAX72xx library
+
+ Quick and not very robust code to create a font definition data table for the
+ MD_MAX72xx library from a text file representation. The text file has '.' commands
+ to direct how the definition is structured.
+ 
+ This is a console application written in standard C.
+ Original target is Win32, but no OS dependencies, so should be portable to other OS.
+*/
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#pragma once
+
+#define NAME_SIZE         50
+#define FILE_NAME_SIZE    200 // may include path
+#define FONT_NAME_SIZE    50
+#define COMMENT_SIZE      40
+#define ASCII_SIZE        256
+#define INPUT_BUFFER_SIZE 200
+
+#define SINGLE_HEIGHT 8
+#define DOUBLE_HEIGHT_OFFSET  (ASCII_SIZE/2)  // ASCII code offset
+
+#define IN_FILE_EXT   ".txt"
+#define OUT_FILE_EXT  ".h"
+
+#define SPACE ' '
+#define STAR  '*'
+#define NUL   '\0'
+#define DOT '.'
+
+#define CMD_NAME     "NAME"
+#define CMD_FONTHIGH "FONT_HEIGHT"
+#define CMD_HEIGHT   "HEIGHT"
+#define CMD_WIDTH    "WIDTH"
+#define CMD_CHAR     "CHAR"
+#define CMD_NOTE     "NOTE"
+#define CMD_END      "END"
+
+// Data types ----------------
+typedef struct
+{
+  // file handling
+  FILE  *fpIn;
+  FILE  *fpOut;
+  char  fileRoot[FILE_NAME_SIZE];
+
+  // font definition header
+  char  name[FONT_NAME_SIZE];
+  unsigned int doubleHeight; // 0 or 1
+  unsigned int fixedWidth;   // 0 for variable, width otherwise
+  unsigned int fontHeight;   // height in pixels, default to 8
+
+  // input buffers and tracking
+  unsigned int curCode; // the current ASCII character being processed
+  unsigned int curBuf;  // the current buffer we are up to
+  unsigned int bufSize; // the number of buffers used
+  char buf[SINGLE_HEIGHT*2][INPUT_BUFFER_SIZE];
+
+} Global_t, *pGlobal_t;
+
+typedef struct
+{
+  char comment[COMMENT_SIZE]; // comment for this character
+  unsigned int size;  // number of valid
+  unsigned int *buf;  // size bytes allocated from memory
+
+  } ASCIIDef_t, *pASCIIDef_t;

lib/MD_MAX72XX/Font Builder/src/txt2font/txt2font.c

@@ -0,0 +1,376 @@
+// Text 2 Font for MD_MAX72xx library
+//
+// Quick and not very robust code to create a font definition data table for the
+// MD_MAX72xx library from a text file representation. The text file has '.' commands
+// to direct how the definition is structured.
+//
+#include "txt2font.h"
+
+//#define	DEBUG
+
+#define	DECIMAL_DATA  0 // decimal or hex data selection in font tables
+
+// Global data ---------------
+Global_t    G;
+ASCIIDef_t  font[ASCII_SIZE] = { 0 };
+
+// Code ----------------------
+void usage(void)
+{
+  printf("\nusage: txt2font <root_name>\n");
+  printf("\n\ninput file  <root_name>.txt");
+  printf("\noutput file <root_name>.h");
+  printf("\n");
+
+  return;
+}
+
+int cmdLine(int argc, char *argv[])
+// process the command line parameter
+{
+  if (argc != 2)
+    return(1);
+
+  strcpy(G.fileRoot, argv[1]);
+
+  return(0);
+}
+
+int initialise(void)
+// one time initialisation code
+{
+  char szFile[FILE_NAME_SIZE];
+
+  // we have no font definition
+  for (int i=0; i<ASCII_SIZE; i++)
+  {
+    font[i].comment[0] = NUL;
+    font[i].size = 0;
+    font[i].buf = NULL;
+  }
+
+  // open the file for reading
+  strcpy(szFile, G.fileRoot);
+  strcat(szFile, IN_FILE_EXT);
+  if ((G.fpIn = fopen(szFile, "r")) == NULL)
+  {
+    printf("\nCannot open input ""%s\n""", szFile);
+    return(2);
+  }
+
+  // open the file for writing
+  strcpy(szFile, G.fileRoot);
+  strcat(szFile, OUT_FILE_EXT);
+  if ((G.fpOut = fopen(szFile, "w")) == NULL)
+  {
+    printf("\nCannot open output ""%s\n""", szFile);
+    return(3);
+  }
+
+  // other stuff
+  G.name[0] = NUL;
+  G.doubleHeight = 0;
+  G.bufSize = SINGLE_HEIGHT;
+  G.fixedWidth = 0;
+  G.fontHeight = 8;
+
+  return(0);
+}
+
+void trimBuffer(char *buf)
+// trim the buffer specified of all trailing white space
+{
+  int i = strlen(buf)-1;
+
+  while (i > 0 && isspace(buf[i]))
+    buf[i--] = NUL;
+
+  return;
+}
+
+void padBuffer(char *buf, unsigned int len)
+// pad the supplied buffer with spaces up to the length specified
+{
+  if (strlen(buf) < len)
+  {
+    for (unsigned int j=strlen(buf); j<len; j++)
+      buf[j] = SPACE;
+  }
+  buf[len] = NUL;
+
+  return;
+}
+
+unsigned int normaliseBuffers(void)
+// normalize all the input buffers to the same size
+{
+  unsigned int max = 0;
+
+  if (G.fixedWidth == 0)
+  {
+    for (unsigned int i=0; i<G.bufSize; i++)
+      max = max < strlen(G.buf[i]) ? max = strlen(G.buf[i]) : max;
+  }
+  else
+    max = G.fixedWidth;
+
+  // now make them all the same size
+  for (unsigned int i=0; i<G.bufSize; i++)
+  {
+    padBuffer(G.buf[i], max);
+  }
+
+  return(max);
+}
+
+char *getToken(char *buf)
+// isolate the first token in the buffer and return a pointer to the next non white space after the token
+{
+  while (!isspace(*buf))
+    buf++;
+  *buf++ = NUL;
+  while (isspace(*buf))
+    buf++;
+
+  return(buf);
+}
+
+void createFontChar(void)
+// the font definition strings are created  as columns, so each byte will be a 'vertical'
+// stripe of the input buffers.
+{
+  font[G.curCode].size = normaliseBuffers();  // make everything the same length; this is the width of the character
+
+  // allocate memory for the font data
+  if (font[G.curCode].buf != NULL)
+    free(font[G.curCode].buf);
+  font[G.curCode].buf = malloc(font[G.curCode].size * sizeof(*font[0].buf));
+
+  // if double height, check the upper buffers and also copy the font data across
+  if (G.doubleHeight)
+  {
+    if (font[G.curCode+DOUBLE_HEIGHT_OFFSET].buf != NULL)
+      free(font[G.curCode+DOUBLE_HEIGHT_OFFSET].buf);
+    font[G.curCode+DOUBLE_HEIGHT_OFFSET].buf = malloc(font[G.curCode].size * sizeof(*font[0].buf));
+
+    font[G.curCode+DOUBLE_HEIGHT_OFFSET].size = font[G.curCode].size;
+    strcpy(font[G.curCode+DOUBLE_HEIGHT_OFFSET].comment, font[G.curCode].comment);
+  }
+
+  // process the input strings in parallel [j] to create the column definition [i] for the first character
+  for (unsigned int i=0; i<font[G.curCode].size; i++)
+  {
+    unsigned int colL, colH;
+
+    if (G.doubleHeight)  // if we are double height, write lower and upper halves separately
+    {
+      colL = colH = 0;
+      // high half of character stored in upper ASCII value, but in low buffers
+      // low  half of character stored in lower ASCII value, but in high buffers
+      for (unsigned int j=0; j<SINGLE_HEIGHT; j++)
+      {
+        colH |= (G.buf[j][i] == SPACE) ? 0 : (1 << j);
+        colL |= (G.buf[j+SINGLE_HEIGHT][i] == SPACE) ? 0 : (1 << j);
+      }
+      font[G.curCode+DOUBLE_HEIGHT_OFFSET].buf[i] = colH;
+      font[G.curCode].buf[i] = colL; 
+    }
+    else
+    {
+      colL = 0;
+      for (unsigned int j=0; j<SINGLE_HEIGHT; j++)
+        colL |= (G.buf[j][i] == SPACE) ? 0 : (1 << j);
+      // save the column data
+      font[G.curCode].buf[i] = colL; 
+    } 
+  }
+
+  return;
+}
+
+void readInput(void)
+// read the input file and process line by line
+{
+  char c, *cp, inLine[INPUT_BUFFER_SIZE];
+
+  cp = inLine;
+
+  while ((c = getc(G.fpIn)) != EOF)
+  {
+    if (c != '\n' && c != '\r') // not end of line
+    {
+      *cp++ = c;
+      continue;
+    }
+
+    // we are at end of line, process the line
+    *cp = NUL;
+    trimBuffer(inLine);
+    if (inLine[0] != DOT) // not a command? must be a chr definition line
+    {
+      if (G.curBuf < (SINGLE_HEIGHT*2))
+      {
+#ifdef DEBUG
+        printf("\nC%02x L%d\t%s", G.curCode, G.curBuf, inLine);
+#endif
+        strcpy(G.buf[G.curBuf++], inLine);  // save the buffer
+      }
+    }
+    else
+    {
+      cp = getToken(&inLine[1]);
+#ifdef DEBUG
+      printf("\nToken: '%s' - '%s'", inLine, cp);
+#endif
+      if (strcmp(&inLine[1], CMD_NAME) == 0)
+      {
+        strcpy(G.name, cp);
+#ifdef DEBUG
+        printf("\tfont name: '%s'", G.name);
+#endif
+      }
+      else if (strcmp(&inLine[1], CMD_FONTHIGH) == 0)
+      {
+        G.fontHeight = abs(atoi(cp));
+#ifdef DEBUG
+        printf("\tfont height: %d", G.fontHeight);
+#endif
+      }
+      else if (strcmp(&inLine[1], CMD_HEIGHT) == 0)
+      {
+        G.doubleHeight = (*cp=='1' ? 0 : 1);
+        G.bufSize = (*cp=='1' ? SINGLE_HEIGHT : SINGLE_HEIGHT*2);
+#ifdef DEBUG
+        printf("\tdouble height: %d", G.doubleHeight);
+#endif
+      }
+      else if (strcmp(&inLine[1], CMD_WIDTH) == 0)
+      {
+        G.fixedWidth = abs(atoi(cp));
+#ifdef DEBUG
+        printf("\twidth: %d", G.fixedWidth);
+#endif
+      }
+      else if ((strcmp(&inLine[1], CMD_CHAR) == 0) || 
+            (strcmp(&inLine[1], CMD_END) == 0))
+      {
+#ifdef DEBUG
+        printf("\tend char %02x", G.curCode);
+#endif
+        if (G.curBuf != 0)		// we have buffers
+        {
+          // process the buffers into a font definition
+          createFontChar();
+
+          // reset the character buffers
+          for (unsigned int i=0; i<G.bufSize; i++)
+            G.buf[i][0] = NUL;
+        }
+
+        // set up the new character if not at the end
+        if (strcmp(&inLine[1], CMD_END) != 0)
+        {
+          G.curBuf = 0;
+          G.curCode = atoi(cp);
+#ifdef DEBUG
+          printf("\t set up %02x", G.curCode);
+#endif
+          if (G.curCode >= (G.doubleHeight ? ASCII_SIZE/2 : ASCII_SIZE))
+          {
+            G.curCode = 0;
+#ifdef DEBUG
+            printf("\t - boundary check fail");
+#endif
+          }
+          font[G.curCode].comment[0] = NUL;
+          font[G.curCode].size = 0;
+        }
+#ifdef DEBUG
+        else
+          printf("\tend of definition");
+#endif
+      }
+      else if (strcmp(&inLine[1], CMD_NOTE) == 0)
+      {
+        strcpy(font[G.curCode].comment, cp);
+#ifdef DEBUG
+        printf("\tnote '%s' for char %02x", font[G.curCode].comment, G.curCode);
+#endif
+      }
+
+    }
+    // reset for next line
+    cp = inLine;
+    memset(inLine, NUL, sizeof(inLine));
+  }
+
+  return;
+}
+
+void saveOutput(void)
+// save the current definition as a font definition header file
+{
+  unsigned int minAscii = 0, maxAscii = 0;
+  
+  // first parse the font table to work out the min and max ASCII values
+  for (int i=0; i<ASCII_SIZE; i++)
+    if (font[i].buf != NULL) maxAscii = i;
+    
+  for (int i=maxAscii; i>=0; i--)
+    if (font[i].buf != NULL) minAscii = i;
+
+  fprintf(G.fpOut, "// Autogenerated font - '%s'\n", G.name);
+  fprintf(G.fpOut, "// %s height, ", (G.doubleHeight ? "Double" : "Single"));
+  if (G.fixedWidth == 0)
+    fprintf(G.fpOut, "Variable spaced");
+  else
+    fprintf(G.fpOut, "Fixed width (%d)", G.fixedWidth);
+  fprintf(G.fpOut, "\n\n");
+
+  fprintf(G.fpOut, "#pragma once\n\n");
+  fprintf(G.fpOut, "const uint8_t PROGMEM _%s[] = \n{\n", (G.name[0] == NUL) ? "font" : G.name);
+  fprintf(G.fpOut, "'F', 1, %d, %d, %d,\n", minAscii, maxAscii, G.fontHeight);
+
+
+  for (int i=minAscii; i<=maxAscii; i++)
+  {
+    fprintf(G.fpOut, "\t%d,", font[i].size);
+    if (font[i].buf != NULL)
+    {
+      for (unsigned int j=0; j<font[i].size; j++)
+        fprintf(G.fpOut, (DECIMAL_DATA ? "%d," : "0x%02x,"), font[i].buf[j]);
+    }
+    fprintf(G.fpOut, "\t// %d", i);
+    if (font[i].comment[0] != NUL)
+      fprintf(G.fpOut," - %s", font[i].comment);
+    fprintf(G.fpOut, "\n");
+  }
+
+  fprintf(G.fpOut, "};\n\n");
+  }
+
+  int main(int argc, char *argv[])
+  {
+  int	ret;
+
+  if (cmdLine(argc, argv))
+  {
+    usage();
+    return(1);
+  }
+
+  if ((ret = initialise()) != 0)
+    return(ret);
+
+  // read the input file
+  readInput();
+
+  // write the output file
+  saveOutput();
+
+  // close files and exit
+  fclose(G.fpIn);
+  fclose(G.fpOut);
+
+  return(0);
+  }

lib/MD_MAX72XX/Font Builder/src/txt2font/txt2font.h

@@ -0,0 +1,71 @@
+/* Text 2 Font for MD_MAX72xx library
+
+ Quick and not very robust code to create a font definition data table for the
+ MD_MAX72xx library from a text file representation. The text file has '.' commands
+ to direct how the definition is structured.
+ 
+ This is a console application written in standard C.
+ Original target is Win32, but no OS dependencies, so should be portable to other OS.
+*/
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#pragma once
+
+#define NAME_SIZE         50
+#define FILE_NAME_SIZE    200 // may include path
+#define FONT_NAME_SIZE    50
+#define COMMENT_SIZE      40
+#define ASCII_SIZE        256
+#define INPUT_BUFFER_SIZE 200
+
+#define SINGLE_HEIGHT 8
+#define DOUBLE_HEIGHT_OFFSET  (ASCII_SIZE/2)  // ASCII code offset
+
+#define IN_FILE_EXT   ".txt"
+#define OUT_FILE_EXT  ".h"
+
+#define SPACE ' '
+#define STAR  '*'
+#define NUL   '\0'
+#define DOT '.'
+
+#define CMD_NAME     "NAME"
+#define CMD_FONTHIGH "FONT_HEIGHT"
+#define CMD_HEIGHT   "HEIGHT"
+#define CMD_WIDTH    "WIDTH"
+#define CMD_CHAR     "CHAR"
+#define CMD_NOTE     "NOTE"
+#define CMD_END      "END"
+
+// Data types ----------------
+typedef struct
+{
+  // file handling
+  FILE  *fpIn;
+  FILE  *fpOut;
+  char  fileRoot[FILE_NAME_SIZE];
+
+  // font definition header
+  char  name[FONT_NAME_SIZE];
+  unsigned int doubleHeight; // 0 or 1
+  unsigned int fixedWidth;   // 0 for variable, width otherwise
+  unsigned int fontHeight;   // height in pixels, default to 8
+
+  // input buffers and tracking
+  unsigned int curCode; // the current ASCII character being processed
+  unsigned int curBuf;  // the current buffer we are up to
+  unsigned int bufSize; // the number of buffers used
+  char buf[SINGLE_HEIGHT*2][INPUT_BUFFER_SIZE];
+
+} Global_t, *pGlobal_t;
+
+typedef struct
+{
+  char comment[COMMENT_SIZE]; // comment for this character
+  unsigned int size;  // number of valid
+  unsigned int *buf;  // size bytes allocated from memory
+
+  } ASCIIDef_t, *pASCIIDef_t;

lib/MD_MAX72XX/Font Builder/symbol_var_single.txt

@@ -0,0 +1,995 @@
+.NAME symbol_var_single
+.FONT_HEIGHT 8
+.HEIGHT 1
+.WIDTH 0
+.CHAR 0
+.NOTE  'Arrow bent BL'
+ 
+  *
+ *
+*****
+ *  *
+  * *
+    *
+    *
+.CHAR 1
+.NOTE  'Arrow bent BR'
+ 
+  *
+   *
+*****
+*  *
+* *
+*
+*
+.CHAR 2
+.NOTE  'Arrow bent TL'
+    *
+    *
+  * *
+ *  *
+*****
+ *
+  *
+ 
+.CHAR 3
+.NOTE  'Arrow bent TR'
+*
+*
+* *
+*  *
+*****
+   *
+  *
+ 
+.CHAR 4
+.NOTE  'Arrow big L'
+   *
+  **
+ *******
+********
+ *******
+  **
+   *
+ 
+.CHAR 5
+.NOTE  'Arrow big R'
+    *
+    **
+*******
+********
+*******
+    **
+    *
+ 
+.CHAR 6
+.NOTE  'Arrow empty head L'
+   *
+  **
+ * **
+*
+ * **
+  **
+   *
+ 
+.CHAR 7
+.NOTE  'Arrow empty head R'
+ *
+ **
+** *
+    *
+** *
+ **
+ *
+ 
+.CHAR 8
+.NOTE  'Arrow empty shaft'
+ 
+ 
+**
+ 
+ 
+**
+ 
+ 
+.CHAR 9
+.NOTE  'Arrow filled head L'
+   *
+  **
+ ****
+*****
+ ****
+  **
+   *
+ 
+.CHAR 10
+.NOTE  'Arrow filled head R'
+ *
+ **
+****
+*****
+****
+ **
+ *
+ 
+.CHAR 11
+.NOTE  'Arrow shaft'
+ 
+ 
+ 
+********
+********
+ 
+ 
+ 
+.CHAR 12
+.NOTE  'Arrow simple E'
+ 
+  *
+   *
+*****
+   *
+  *
+ 
+ 
+.CHAR 13
+.NOTE  'Arrow simple N'
+ 
+  *
+ ***
+* * *
+  *
+  *
+  *
+ 
+.CHAR 14
+.NOTE  'Arrow simple NE'
+ 
+ ****
+   **
+  * *
+ *  *
+*
+ 
+ 
+.CHAR 15
+.NOTE  'Arrow simple NS'
+  *
+ ***
+* * *
+  *
+* * *
+ ***
+  *
+ 
+.CHAR 16
+.NOTE  'Arrow simple NW'
+ 
+****
+**
+* *
+*  *
+    *
+ 
+ 
+.CHAR 17
+.NOTE  'Arrow simple S'
+ 
+  *
+  *
+  *
+* * *
+ ***
+  *
+ 
+.CHAR 18
+.NOTE  'Arrow simple SE'
+ 
+*
+ *  *
+  * *
+   **
+ ****
+ 
+ 
+.CHAR 19
+.NOTE  'Arrow simple SW'
+ 
+    *
+*  *
+* *
+**
+****
+ 
+ 
+.CHAR 20
+.NOTE  'Arrow simple W'
+ 
+  *
+ *
+*****
+ *
+  *
+ 
+ 
+.CHAR 21
+.NOTE  'Arrow simple WE'
+ 
+  * *
+ *   *
+*******
+ *   *
+  * *
+ 
+ 
+.CHAR 22
+.NOTE  'Arrow tail closure'
+ 
+ 
+*
+*
+*
+ 
+ 
+ 
+.CHAR 23
+.NOTE  'Arrow tail L'
+    *  *
+   *  *
+  *  *
+******
+******
+  *  *
+   *  *
+    *  *
+.CHAR 24
+.NOTE  'Arrow tail R'
+*  *
+ *  *
+  *  *
+   *****
+   *****
+  *  *
+ *  *
+*  *
+.CHAR 25
+.NOTE  'Ball empty'
+ 
+ ****
+*    *
+*    *
+*    *
+*    *
+ ****
+ 
+.CHAR 26
+.NOTE  'Ball filled'
+ 
+ ****
+******
+******
+******
+******
+ ****
+ 
+.CHAR 27
+.NOTE  'Bullet Point empty'
+ 
+ 
+  *
+ * *
+ * *
+  *
+ 
+ 
+.CHAR 28
+.NOTE  'Bullet Point empty rev'
+*****
+*****
+** **
+* * *
+* * *
+** **
+*****
+*****
+.CHAR 29
+.NOTE  'Bullet Point filled'
+ 
+ 
+  *
+ ***
+ ***
+  *
+ 
+ 
+.CHAR 30
+.NOTE  'Bullet Point filled rev'
+*****
+*****
+** **
+*   *
+*   *
+** **
+*****
+*****
+.CHAR 31
+.NOTE  'Deg C'
+**
+**
+   ***
+  *
+  *
+  *
+   ***
+ 
+.CHAR 32
+.NOTE  'Deg F'
+**
+**
+  ****
+  *
+  ***
+  *
+  *
+ 
+.CHAR 33
+.NOTE  'Diamond empty'
+   *
+  ***
+ ** **
+**   **
+ ** **
+  ***
+   *
+ 
+.CHAR 34
+.NOTE  'Diamond filled'
+   *
+  ***
+ *****
+*******
+ *****
+  ***
+   *
+ 
+.CHAR 35
+.NOTE  'Icon bullet L'
+        *
+  *******
+ *  *****
+*   *****
+ *  *****
+  *******
+        *
+ 
+.CHAR 36
+.NOTE  'Icon bullet R'
+*
+*******
+*****  *
+*****   *
+*****  *
+*******
+*
+ 
+.CHAR 37
+.NOTE  'Icon cactus'
+   **
+   **
+   *****
+********
+***** **
+** ** **
+** **
+   **
+.CHAR 38
+.NOTE  'Icon card clubs'
+ ***
+ * *
+*****
+* * *
+*****
+  *
+ ***
+ 
+.CHAR 39
+.NOTE  'Icon card diamond'
+ 
+  *
+ ***
+*****
+*****
+ ***
+  *
+ 
+.CHAR 40
+.NOTE  'Icon card heart'
+ 
+ * *
+*****
+*****
+*****
+ ***
+  *
+ 
+.CHAR 41
+.NOTE  'Icon card spades'
+  *
+ ***
+*****
+*****
+*****
+  *
+ ***
+ 
+.CHAR 42
+.NOTE  'Icon gun'
+ 
+ 
+ * *****
+  ******
+ ****
+*****
+** *
+**
+.CHAR 43
+.NOTE  'Icon gun bullets'
+ *
+*
+ 
+** ** **
+** ** **
+ 
+*
+ *
+.CHAR 44
+.NOTE  'Icon house'
+ 
+    **
+   ****
+  ******
+ ********
+**********
+ ***  ***
+ ***  ***
+.CHAR 45
+.NOTE  'Icon pacman'
+  *****
+ *     *
+*  *  *
+*    *
+*   *
+*    **
+ *     *
+  *****
+.CHAR 46
+.NOTE  'Icon pacman ghost'
+ *****
+*     *
+* * * *
+*     *
+*     *
+*******
+* * * *
+* * * *
+.CHAR 47
+.NOTE  'Icon rocket'
+    *
+   ***
+   * *
+   ***
+   ***
+  *****
+  *****
+ *  *  *
+.CHAR 48
+.NOTE  'Icon sex female'
+ ***
+*   *
+*   *
+ ***
+  *
+*****
+  *
+ 
+.CHAR 49
+.NOTE  'Icon sex male'
+ 
+   ***
+    **
+ *** *
+*  *
+*  *
+ **
+ 
+.CHAR 50
+.NOTE  'Icon smiley happy'
+ ***
+*****
+* * *
+*****
+*   *
+** **
+ ***
+ 
+.CHAR 51
+.NOTE  'Icon smiley sad'
+ ***
+*****
+* * *
+*****
+** **
+*   *
+ ***
+ 
+.CHAR 52
+.NOTE  'Icon snowflake'
+ * *  *
+**  * **
+  ****
+ **  * *
+* *  **
+  ****
+** *  **
+ *  * *
+.CHAR 53
+.NOTE  'Icon telephone 1'
+ 
+    **
+    **
+     *
+    *
+** *
+***
+ 
+.CHAR 54
+.NOTE  'Icon telephone 2'
+  *****
+**     **
+** *** **
+  * * *
+ * *** *
+ *  *  *
+ *******
+ 
+.CHAR 55
+.NOTE  'Icon tetris'
+     *
+**** * *
+      **
+   *   *
+* ***
+*  *
+*    **
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lib/MD_MAX72XX/ISSUE_TEMPLATE.md

@@ -0,0 +1,29 @@
+## IMPORTANT
+Before submitting this issue
+[ ] Have you tried using the latest version of the library?
+[ ] Have you checked this has not already been submitted and/or resolved?
+[ ] If you are requesting help a better choice may be the [ Arduino forum](http://forum.arduino.cc/)
+
+## Subject of the issue
+Describe your issue here.
+
+## Your Environment
+**Library Version:** 
+**Arduino IDE version:** 
+**Host OS and Version:** 
+**CPU Hardware model/type:** 
+**Matrix hardware model/type:** [ ] Parola  [ ] Generic  [ ] ICStation  [ ] FC-16  [ ] Custom (describe how wired)
+
+## Steps to Reproduce
+Explain how to reproduce this issue. Please provide working code below to demonstrate the issue.
+
+## Expected Behaviour
+Explain what should happen.
+
+## Actual Behaviour
+Explain what happens instead. Provide log messages if relevant.
+
+## Code Demonstrating the Issue
+````
+Insert your compilable code here (no code snippets).
+````

lib/MD_MAX72XX/LICENSE

@@ -0,0 +1,502 @@
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 2.1, February 1999
+
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+
+That's all there is to it!

lib/MD_MAX72XX/PULL_REQUEST.md

@@ -0,0 +1,29 @@
+## Proposed changes
+Describe the big picture of your changes here to communicate why we should accept this pull request. 
+- If it fixes a bug or resolves a feature request, be sure to link to that issue. 
+- If it introduces new functionality, why is this needed?
+- If it modifies existing functionality, what makes this better?
+
+## Types of changes
+What types of changes does your code introduce?
+Put an `x` in the boxes that apply
+[ ] Bugfix (non-breaking change which fixes an issue)
+[ ] New feature (non-breaking change which adds functionality)
+[ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+
+## Your Environment
+**Library Version:** 
+**Arduino IDE version:** 
+**Hardware model/type:** 
+**OS and Version:** 
+
+## Checklist
+Put an `x` in the boxes that apply. You can also fill these out after creating the PR.
+This is a reminder of what we are expecting before merging your code.
+[ ] Code compiles correctly/with no errors
+[ ] I have added tests that prove my fix is effective or that my feature works
+[ ] I have added or extended necessary documentation (if appropriate)
+[ ] Any dependent changes have been merged and published in downstream modules
+
+## Further comments
+If this is a relatively large or complex change, kick off the discussion by explaining why you chose the solution you did and what alternatives you considered, etc...

lib/MD_MAX72XX/README.md

@@ -0,0 +1,13 @@
+# MAX72xx LED Matrix Display Library
+
+[![arduino-library-badge](https://www.ardu-badge.com/badge/MD_MAX72XX.svg?)](https://www.ardu-badge.com/MD_MAX72XX)
+
+The library implements functions that allow the MAX72xx to be used for LED matrices (64 individual LEDs), allowing the programmer to use the LED matrix as a pixel device, displaying graphics elements much like any other pixel addressable display.
+
+In this scenario, it is convenient to abstract out the concept of the hardware device and create a uniform and consistent pixel address space, with the libraries determining device and device-element address. Similarly, control of the devices is uniform and abstracted to a system level.
+
+The library still retains flexibility for device level control, should the developer require, through the use of overloaded class methods.
+
+If you like and use this library please consider making a small donation using [PayPal](https://paypal.me/MajicDesigns/4USD)
+
+[Library Documentation](https://majicdesigns.github.io/MD_MAX72XX/)

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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>OP_NOOP</b>&#160;&#160;&#160;0</td></tr>
+<tr class="memdesc:a6c542d212fef9a9b5ba82222089a306b"><td class="mdescLeft">&#160;</td><td class="mdescRight">MAX72xx opcode for NO OP. <br /></td></tr>
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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>OP_DIGIT0</b>&#160;&#160;&#160;1</td></tr>
+<tr class="memdesc:ac2dcbbd3fef01a1defd3aa5f8a8c612a"><td class="mdescLeft">&#160;</td><td class="mdescRight">MAX72xx opcode for DIGIT0. <br /></td></tr>
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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>OP_DIGIT1</b>&#160;&#160;&#160;2</td></tr>
+<tr class="memdesc:a6c8209744590cd0cc8495cc6de58ab02"><td class="mdescLeft">&#160;</td><td class="mdescRight">MAX72xx opcode for DIGIT1. <br /></td></tr>
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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>OP_DIGIT2</b>&#160;&#160;&#160;3</td></tr>
+<tr class="memdesc:a430d77ba70abea8e61820aaa3f27c28b"><td class="mdescLeft">&#160;</td><td class="mdescRight">MAX72xx opcode for DIGIT2. <br /></td></tr>
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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>OP_DIGIT3</b>&#160;&#160;&#160;4</td></tr>
+<tr class="memdesc:a03d3bd8cd1b468b4a9cb473036f65747"><td class="mdescLeft">&#160;</td><td class="mdescRight">MAX72xx opcode for DIGIT3. <br /></td></tr>
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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>OP_DIGIT4</b>&#160;&#160;&#160;5</td></tr>
+<tr class="memdesc:ac3d2e72ba1cca69133e4dcbc478f616b"><td class="mdescLeft">&#160;</td><td class="mdescRight">MAX72xx opcode for DIGIT4. <br /></td></tr>
+<tr class="separator:ac3d2e72ba1cca69133e4dcbc478f616b"><td class="memSeparator" colspan="2">&#160;</td></tr>
+<tr class="memitem:a021f910b62cdaa529fcea36791df7028" id="r_a021f910b62cdaa529fcea36791df7028"><td class="memItemLeft" align="right" valign="top"><a id="a021f910b62cdaa529fcea36791df7028" name="a021f910b62cdaa529fcea36791df7028"></a>
+#define&#160;</td><td class="memItemRight" valign="bottom"><b>OP_DIGIT5</b>&#160;&#160;&#160;6</td></tr>
+<tr class="memdesc:a021f910b62cdaa529fcea36791df7028"><td class="mdescLeft">&#160;</td><td class="mdescRight">MAX72xx opcode for DIGIT5. <br /></td></tr>
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+<tr class="memitem:a5a12c4b35c924fec89c3b71246b7b7e2" id="r_a5a12c4b35c924fec89c3b71246b7b7e2"><td class="memItemLeft" align="right" valign="top"><a id="a5a12c4b35c924fec89c3b71246b7b7e2" name="a5a12c4b35c924fec89c3b71246b7b7e2"></a>
+#define&#160;</td><td class="memItemRight" valign="bottom"><b>OP_DIGIT6</b>&#160;&#160;&#160;7</td></tr>
+<tr class="memdesc:a5a12c4b35c924fec89c3b71246b7b7e2"><td class="mdescLeft">&#160;</td><td class="mdescRight">MAX72xx opcode for DIGIT6. <br /></td></tr>
+<tr class="separator:a5a12c4b35c924fec89c3b71246b7b7e2"><td class="memSeparator" colspan="2">&#160;</td></tr>
+<tr class="memitem:a3a1210173fb70a66f649b93eb62e0884" id="r_a3a1210173fb70a66f649b93eb62e0884"><td class="memItemLeft" align="right" valign="top"><a id="a3a1210173fb70a66f649b93eb62e0884" name="a3a1210173fb70a66f649b93eb62e0884"></a>
+#define&#160;</td><td class="memItemRight" valign="bottom"><b>OP_DIGIT7</b>&#160;&#160;&#160;8</td></tr>
+<tr class="memdesc:a3a1210173fb70a66f649b93eb62e0884"><td class="mdescLeft">&#160;</td><td class="mdescRight">MAX72xx opcode for DIGIT7. <br /></td></tr>
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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>OP_DECODEMODE</b>&#160;&#160;&#160;9</td></tr>
+<tr class="memdesc:a318b32d905ce8e57d7caec133ec7d712"><td class="mdescLeft">&#160;</td><td class="mdescRight">MAX72xx opcode for DECODE MODE. <br /></td></tr>
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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>OP_INTENSITY</b>&#160;&#160;&#160;10</td></tr>
+<tr class="memdesc:a4f47ca7a01008a4d918302ece5314ed4"><td class="mdescLeft">&#160;</td><td class="mdescRight">MAX72xx opcode for SET INTENSITY. <br /></td></tr>
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+<tr class="memitem:a13d91ddca53029535b6cf314b28ed15e" id="r_a13d91ddca53029535b6cf314b28ed15e"><td class="memItemLeft" align="right" valign="top"><a id="a13d91ddca53029535b6cf314b28ed15e" name="a13d91ddca53029535b6cf314b28ed15e"></a>
+#define&#160;</td><td class="memItemRight" valign="bottom"><b>OP_SCANLIMIT</b>&#160;&#160;&#160;11</td></tr>
+<tr class="memdesc:a13d91ddca53029535b6cf314b28ed15e"><td class="mdescLeft">&#160;</td><td class="mdescRight">MAX72xx opcode for SCAN LIMIT. <br /></td></tr>
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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>OP_SHUTDOWN</b>&#160;&#160;&#160;12</td></tr>
+<tr class="memdesc:ac4772c1c1c24a4b5837a2000c62aa0a3"><td class="mdescLeft">&#160;</td><td class="mdescRight">MAX72xx opcode for SHUT DOWN. <br /></td></tr>
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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>OP_DISPLAYTEST</b>&#160;&#160;&#160;15</td></tr>
+<tr class="memdesc:a7ef59a31858360d26d5dade28441598c"><td class="mdescLeft">&#160;</td><td class="mdescRight">MAX72xx opcode for DISPLAY TEST. <br /></td></tr>
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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>ALL_CHANGED</b>&#160;&#160;&#160;0xff</td></tr>
+<tr class="memdesc:a1311c4a6ec43ed79b5b79b769abdb2e9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Mask for all rows changed in a buffer structure. <br /></td></tr>
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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>ALL_CLEAR</b>&#160;&#160;&#160;0x00</td></tr>
+<tr class="memdesc:ac98deafc05f78857417ee0928eb8b786"><td class="mdescLeft">&#160;</td><td class="mdescRight">Mask for all rows clear in a buffer structure. <br /></td></tr>
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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>FONT_FILE_INDICATOR</b>&#160;&#160;&#160;'F'</td></tr>
+<tr class="memdesc:a4915dc914dd14143c87bd6a9dfdf9190"><td class="mdescLeft">&#160;</td><td class="mdescRight">Font table indicator prefix for info header. <br /></td></tr>
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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>SPI_DATA_SIZE</b>&#160;&#160;&#160;(sizeof(uint8_t)*_maxDevices*2)</td></tr>
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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>SPI_OFFSET</b>(i,  x)&#160;&#160;&#160;(((<a class="el" href="_m_d___m_a_x72xx__lib_8h.html#a931184853bc54a0a703e0fef3dbbf76f">LAST_BUFFER</a>-(i))*2)+(x))</td></tr>
+<tr class="memdesc:ad2df4aac8e44c45191f269fb0080f4ab"><td class="mdescLeft">&#160;</td><td class="mdescRight">SPI data offset for buffer i, digit x. <br /></td></tr>
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+<tr class="memitem:a78f75922ae156c32cbbfb5317c19c1bd" id="r_a78f75922ae156c32cbbfb5317c19c1bd"><td class="memItemLeft" align="right" valign="top"><a id="a78f75922ae156c32cbbfb5317c19c1bd" name="a78f75922ae156c32cbbfb5317c19c1bd"></a>
+#define&#160;</td><td class="memItemRight" valign="bottom"><b>FIRST_BUFFER</b>&#160;&#160;&#160;0</td></tr>
+<tr class="memdesc:a78f75922ae156c32cbbfb5317c19c1bd"><td class="mdescLeft">&#160;</td><td class="mdescRight">First buffer number. <br /></td></tr>
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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>LAST_BUFFER</b>&#160;&#160;&#160;(_maxDevices-1)</td></tr>
+<tr class="memdesc:a931184853bc54a0a703e0fef3dbbf76f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Last buffer number. <br /></td></tr>
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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>HW_ROW</b>(r)&#160;&#160;&#160;(_hwRevRows ? (<a class="el" href="_m_d___m_a_x72xx_8h.html#aa4d030604a90c8d019d90fc721900d63">ROW_SIZE</a> - 1 - (r)) : (r))</td></tr>
+<tr class="memdesc:a56903cc37345485ca508143a2be78634"><td class="mdescLeft">&#160;</td><td class="mdescRight">Pixel to hardware coordinate row mapping. <br /></td></tr>
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+#define&#160;</td><td class="memItemRight" valign="bottom"><b>HW_COL</b>(c)&#160;&#160;&#160;(_hwRevCols ? (<a class="el" href="_m_d___m_a_x72xx_8h.html#a99468544016f0abb855e6415c629ec29">COL_SIZE</a> - 1 - (c)) : (c))</td></tr>
+<tr class="memdesc:a77f84d61393ce43edbac8f90e6724867"><td class="mdescLeft">&#160;</td><td class="mdescRight">Pixel to hardware coordinate column mapping. <br /></td></tr>
+<tr class="separator:a77f84d61393ce43edbac8f90e6724867"><td class="memSeparator" colspan="2">&#160;</td></tr>
+</table><table class="memberdecls">
+<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="var-members" name="var-members"></a>
+Variables</h2></td></tr>
+<tr class="memitem:a9a965cffcf356ebc8dddd193f136529c" id="r_a9a965cffcf356ebc8dddd193f136529c"><td class="memItemLeft" align="right" valign="top"><a id="a9a965cffcf356ebc8dddd193f136529c" name="a9a965cffcf356ebc8dddd193f136529c"></a>
+const uint8_t PROGMEM&#160;</td><td class="memItemRight" valign="bottom"><b>_sysfont</b> []</td></tr>
+<tr class="memdesc:a9a965cffcf356ebc8dddd193f136529c"><td class="mdescLeft">&#160;</td><td class="mdescRight">System variable pitch font table. <br /></td></tr>
+<tr class="separator:a9a965cffcf356ebc8dddd193f136529c"><td class="memSeparator" colspan="2">&#160;</td></tr>
+</table>
+<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
+<div class="textblock"><p>Includes library definitions. </p>
+</div></div><!-- contents -->
+</div><!-- doc-content -->
+<!-- start footer part -->
+<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
+  <ul>
+    <li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="_m_d___m_a_x72xx__lib_8h.html">MD_MAX72xx_lib.h</a></li>
+    <li class="footer">Generated by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.8 </li>
+  </ul>
+</div>
+</body>
+</html>

lib/MD_MAX72XX/docs/_m_d___m_a_x72xx__lib_8h.js

@@ -0,0 +1,32 @@
+var _m_d___m_a_x72xx__lib_8h =
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+    [ "FIRST_BUFFER", "_m_d___m_a_x72xx__lib_8h.html#a78f75922ae156c32cbbfb5317c19c1bd", null ],
+    [ "FONT_FILE_INDICATOR", "_m_d___m_a_x72xx__lib_8h.html#a4915dc914dd14143c87bd6a9dfdf9190", null ],
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+    [ "LAST_BUFFER", "_m_d___m_a_x72xx__lib_8h.html#a931184853bc54a0a703e0fef3dbbf76f", null ],
+    [ "MAX_DEBUG", "_m_d___m_a_x72xx__lib_8h.html#a95fb00b1f346896818c99d99f041c201", null ],
+    [ "OP_DECODEMODE", "_m_d___m_a_x72xx__lib_8h.html#a318b32d905ce8e57d7caec133ec7d712", null ],
+    [ "OP_DIGIT0", "_m_d___m_a_x72xx__lib_8h.html#ac2dcbbd3fef01a1defd3aa5f8a8c612a", null ],
+    [ "OP_DIGIT1", "_m_d___m_a_x72xx__lib_8h.html#a6c8209744590cd0cc8495cc6de58ab02", null ],
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+<div class="header">
+  <div class="headertitle"><div class="title">MD_MAX72XX Member List</div></div>
+</div><!--header-->
+<div class="contents">
+
+<p>This is the complete list of members for <a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a>, including all inherited members.</p>
+<table class="directory">
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#adb14d2c3fb56372c3879a3297b7eb7bb">begin</a>(void)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a5ce5b733333d776ef94e0cc36e1043cf">clear</a>(void)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#ac57b7cd49a465e7f5f3027a1eac46242">clear</a>(uint8_t startDev, uint8_t endDev)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#acff691690cb5848980f10be9facbe086">clear</a>(uint8_t buf)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#aa54ba8b079710f6b4e9f9721e2e09c68">control</a>(uint8_t dev, controlRequest_t mode, int value)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#aeb43fa0c917e716b9d35eac72fb1dd45">control</a>(controlRequest_t mode, int value)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#aa724a797235e28a43b8d127e4999537e">control</a>(uint8_t startDev, uint8_t endDev, controlRequest_t mode, int value)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a7c6d702fe0161b19448f35049e00bf4f">controlRequest_t</a> enum name</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#aadaf745b81100652dafeff2eb212f457">controlValue_t</a> enum name</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a7c6d702fe0161b19448f35049e00bf4fa7293fb34e1b8e326a15e62d58e8bdc47">DECODE</a> enum value</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a88ea7aada207c02282d091b7be7084e6a835ba225e1886c3d4c0524d57b9a8617">DR0CR0RR0_HW</a> enum value</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a88ea7aada207c02282d091b7be7084e6adfffcf49bbb3a083c5438c4d4ea1761f">DR0CR0RR1_HW</a> enum value</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a88ea7aada207c02282d091b7be7084e6a99968e35cbf6002a77173e3099350de1">DR0CR1RR0_HW</a> enum value</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a88ea7aada207c02282d091b7be7084e6a66f8112dc245ac5cbf7dee5d27ce347b">DR0CR1RR1_HW</a> enum value</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a88ea7aada207c02282d091b7be7084e6a6cbe7b143ac9c874817742de3533f6d0">DR1CR0RR0_HW</a> enum value</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a88ea7aada207c02282d091b7be7084e6a9196241d778553f9133b94e2c1e12185">DR1CR0RR1_HW</a> enum value</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a88ea7aada207c02282d091b7be7084e6af02006646552645b9f9f70d3de88f01e">DR1CR1RR0_HW</a> enum value</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a88ea7aada207c02282d091b7be7084e6a391585dea3220f6f95b14ceac4daedcb">DR1CR1RR1_HW</a> enum value</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a88ea7aada207c02282d091b7be7084e6aa31c3dd0315ecc5527dd36689069395a">FC16_HW</a> enum value</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a5b2e511f00bddbcc1fffa78757d71bf5">fontType_t</a> typedef</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a88ea7aada207c02282d091b7be7084e6af0b64275e41b18b0e3a0701721f89bb1">GENERIC_HW</a> enum value</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#afee0d78eed2563729e21a765289c9cbe">getBuffer</a>(uint16_t col, uint8_t size, uint8_t *pd)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a40e7ace9bfcba9b66620849232070667">getChar</a>(uint16_t c, uint8_t size, uint8_t *buf)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a2a613b568cd6bff43046c11ec8b455cc">getColumn</a>(uint16_t c)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#ab0db87a521190dad074e4b240a8288fb">getColumn</a>(uint8_t buf, uint8_t c)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a2fb151890cf022197b58a546f75e9e20">getColumnCount</a>(void)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a5508f498566c3b3e80422e6ff9501ec3">getDeviceCount</a>(void)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a61b9e9a65aaa0a42d73267888bf2acf9">getFont</a>(void)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a899895fcca3bd4dc424eb78397553077">getFontHeight</a>(void)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a88b4a38d90588e39ffc70986a501ed2e">getMaxFontWidth</a>(void)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#aa1533adc9aa15e29a143e69d9db12881">getPoint</a>(uint8_t r, uint16_t c)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a59eefabcaf003dc37dd17f41c5d6d211">getRow</a>(uint8_t buf, uint8_t r)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a88ea7aada207c02282d091b7be7084e6a583a8410fad078917bc9f0752395b605">ICSTATION_HW</a> enum value</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a7c6d702fe0161b19448f35049e00bf4fa53f3b55b0268f2e1550cf8357c5b4812">INTENSITY</a> enum value</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a96e96c7e70874d7722a51a2d10864687">MD_MAX72XX</a>(moduleType_t mod, int8_t dataPin, int8_t clkPin, int8_t csPin, uint8_t numDevices=1)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a49e31462051ccc8c5f73eff0974d0345">MD_MAX72XX</a>(moduleType_t mod, int8_t csPin, uint8_t numDevices=1)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#ac7c547ab0e0295918d7bbfa501a981c6">MD_MAX72XX</a>(moduleType_t mod, SPIClass &amp;spi, int8_t csPin, uint8_t numDevices=1)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a88ea7aada207c02282d091b7be7084e6">moduleType_t</a> enum name</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#aadaf745b81100652dafeff2eb212f457a69c74295de1c864d082152eb358409a1">OFF</a> enum value</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#aadaf745b81100652dafeff2eb212f457aa19c4a20e024758f7cb4b82283ef2138">ON</a> enum value</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a88ea7aada207c02282d091b7be7084e6ab1adfbd7e43930ccfc2317a62447d9f9">PAROLA_HW</a> enum value</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a7c6d702fe0161b19448f35049e00bf4fa5bd97d72ff4cc7d30ee1d24213cee6a7">SCANLIMIT</a> enum value</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a1aaabf8c4df556c3e9a04a1319234261">setBuffer</a>(uint16_t col, uint8_t size, uint8_t *pd)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#ae0bb8f197ef89389374f83717f0a1c3d">setChar</a>(uint16_t col, uint16_t c)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#ab3f2885a67e435198b5b01505030165d">setColumn</a>(uint16_t c, uint8_t value)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a7788a0bdbef1a302a7652998b21703bd">setColumn</a>(uint8_t buf, uint8_t c, uint8_t value)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a16655f29d088d8ce1d557abcb703513d">setFont</a>(fontType_t *f)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#ab68333e23c99212d9574b39ed7e67a96">setModuleType</a>(moduleType_t mod)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a1078a6ad9ae77ff7ef75f78d86f04da7">setPoint</a>(uint8_t r, uint16_t c, bool state)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a9c3c6ea52bfe61fc0279d9deb98a9e6e">setRow</a>(uint8_t r, uint8_t value)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a238cb42149b473027fd203406828dc35">setRow</a>(uint8_t startDev, uint8_t endDev, uint8_t r, uint8_t value)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#afff77a9eb68408447a15172d7555d794">setRow</a>(uint8_t buf, uint8_t r, uint8_t value)</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html#a8e126c7e12fbca524ef93befad3db825">setShiftDataInCallback</a>(uint8_t(*cb)(uint8_t dev, transformType_t t))</td><td class="entry"><a class="el" href="class_m_d___m_a_x72_x_x.html">MD_MAX72XX</a></td><td class="entry"></td></tr>
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+ Copyright (C) 1997-2020 by Dimitri van Heesch
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+ Permission is hereby granted, free of charge, to any person obtaining a copy of this software
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+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
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+var opened=true;
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+var plusImg  = [ "var(--fold-plus-image)",  "var(--fold-plus-image-relpath)" ];
+var minusImg = [ "var(--fold-minus-image)", "var(--fold-minus-image-relpath)" ];
+
+// toggle all folding blocks
+function codefold_toggle_all(relPath) {
+ if (opened) {
+   $('#fold_all').css('background-image',plusImg[relPath]);
+   $('div[id^=foldopen]').hide();
+   $('div[id^=foldclosed]').show();
+ } else {
+   $('#fold_all').css('background-image',minusImg[relPath]);
+   $('div[id^=foldopen]').show();
+   $('div[id^=foldclosed]').hide();
+ }
+ opened=!opened;
+}
+
+// toggle single folding block
+function codefold_toggle(id) {
+  $('#foldopen'+id).toggle();
+  $('#foldclosed'+id).toggle();
+}
+function init_codefold(relPath) {
+  $('span[class=lineno]').css(
+    {'padding-right':'4px',
+     'margin-right':'2px',
+     'display':'inline-block',
+     'width':'54px',
+     'background':'linear-gradient(var(--fold-line-color),var(--fold-line-color)) no-repeat 46px/2px 100%'
+    });
+  // add global toggle to first line
+  $('span[class=lineno]:first').append('<span class="fold" id="fold_all" '+
+                                             'onclick="javascript:codefold_toggle_all('+relPath+');" '+
+                                             'style="background-image:'+minusImg[relPath]+';"></span>');
+  // add vertical lines to other rows
+  $('span[class=lineno]').not(':eq(0)').append('<span class="fold"></span>');
+  // add toggle controls to lines with fold divs
+  $('div[class=foldopen]').each(function() {
+    // extract specific id to use
+    var id    = $(this).attr('id').replace('foldopen','');
+    // extract start and end foldable fragment attributes
+    var start = $(this).attr('data-start');
+    var end   = $(this).attr('data-end');
+    // replace normal fold span with controls for the first line of a foldable fragment
+    $(this).find('span[class=fold]:first').replaceWith('<span class="fold" '+
+                                                       'onclick="javascript:codefold_toggle(\''+id+'\');" '+
+                                                       'style="background-image:'+minusImg[relPath]+';"></span>');
+    // append div for folded (closed) representation
+    $(this).after('<div id="foldclosed'+id+'" class="foldclosed" style="display:none;"></div>');
+    // extract the first line from the "open" section to represent closed content
+    var line = $(this).children().first().clone();
+    // remove any glow that might still be active on the original line
+    $(line).removeClass('glow');
+    if (start) {
+      // if line already ends with a start marker (e.g. trailing {), remove it
+      $(line).html($(line).html().replace(new RegExp('\\s*'+start+'\\s*$','g'),''));
+    }
+    // replace minus with plus symbol
+    $(line).find('span[class=fold]').css('background-image',plusImg[relPath]);
+    // append ellipsis
+    $(line).append(' '+start+'<a href="javascript:codefold_toggle(\''+id+'\')">&#8230;</a>'+end);
+    // insert constructed line into closed div
+    $('#foldclosed'+id).html(line);
+  });
+}
+
+/* @license-end */

lib/MD_MAX72XX/docs/files.html

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+<script type="text/javascript" src="jquery.js"></script>
+<script type="text/javascript" src="dynsections.js"></script>
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+ <tbody>
+ <tr id="projectrow">
+  <td id="projectlogo"><img alt="Logo" src="MajicDesigns_Logo.png"/></td>
+  <td id="projectalign">
+   <div id="projectname">MD_MAX72xx LED Matrix Arduino Library<span id="projectnumber">&#160;3.5</span>
+   </div>
+   <div id="projectbrief">Library to control connected  MAX72XX devices as a pixel array</div>
+  </td>
+ </tr>
+ </tbody>
+</table>
+</div>
+<!-- end header part -->
+<!-- Generated by Doxygen 1.9.8 -->
+<script type="text/javascript">
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+/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
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+/* @license-end */
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+</div>
+</div>
+</div>
+</div>
+
+<div class="header">
+  <div class="headertitle"><div class="title">File List</div></div>
+</div><!--header-->
+<div class="contents">
+<div class="textblock">Here is a list of all documented files with brief descriptions:</div><div class="directory">
+<div class="levels">[detail level <span onclick="javascript:toggleLevel(1);">1</span><span onclick="javascript:toggleLevel(2);">2</span>]</div><table class="directory">
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+<tr id="row_0_1_" class="even"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icondoc"></span><a class="el" href="_m_d___m_a_x72xx_8h.html" target="_self">MD_MAX72xx.h</a></td><td class="desc">Main header file for the MD_MAX72xx library </td></tr>
+<tr id="row_0_2_" class="odd"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icondoc"></span><a class="el" href="_m_d___m_a_x72xx__buf_8cpp.html" target="_self">MD_MAX72xx_buf.cpp</a></td><td class="desc">Implements buffer related methods </td></tr>
+<tr id="row_0_3_" class="even"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icondoc"></span><a class="el" href="_m_d___m_a_x72xx__font_8cpp.html" target="_self">MD_MAX72xx_font.cpp</a></td><td class="desc">Implements font definition and methods </td></tr>
+<tr id="row_0_4_" class="odd"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icondoc"></span><a class="el" href="_m_d___m_a_x72xx__lib_8h.html" target="_self">MD_MAX72xx_lib.h</a></td><td class="desc">Includes library definitions </td></tr>
+<tr id="row_0_5_" class="even"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icondoc"></span><a class="el" href="_m_d___m_a_x72xx__pix_8cpp.html" target="_self">MD_MAX72xx_pix.cpp</a></td><td class="desc">Implements pixel related methods </td></tr>
+</table>
+</div><!-- directory -->
+</div><!-- contents -->
+</div><!-- doc-content -->
+<!-- start footer part -->
+<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
+  <ul>
+    <li class="footer">Generated by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.8 </li>
+  </ul>
+</div>
+</body>
+</html>

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