Andy A
Displays text on a WS2812 (NeoPixel) matrix display
Dependencies: mbed miniFont wsDrive
Displays text on an array of WS2812 LEDs (NeoPixels)
Text is 5 rows tall so any grid larger than that can be used. The font supports A-Z (capitals only, any lowercase input will be capitalised) numbers and some basic punctuation. Letters are 5 LEDs wide, some numbers and punctuation are smaller but generally you need 6 pixels wide per character you wish to fit. If displaying a string a 1 row space is left between characters, for other spacings either edit the code or print one letter at a time and adjust the offset for the next letter.
LEDs must be connected in horizontal rows, top row first. Rows can be either direction or alternating directions.
NOTE: The testing on this has been fairly minimal. It works with my one physical configuration, I think the logic for other configurations is correct but haven't tested it. If you find a problem please let me know.
Diff: miniFont/miniFont.h
- Revision:
- 2:0006602e8713
- Parent:
- 1:2014f027ed6f
--- a/miniFont/miniFont.h Thu Nov 06 17:32:12 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,49 +0,0 @@
-#ifndef __miniFont_h__
-#define __miniFont_h__
-
-#include "mbed.h"
-
-class miniFont
-{
-public:
-
- miniFont();
- uint8_t getPixWidth(char letter);
- uint8_t getPixHeight(char letter);
- bool getChar(char letter, const char **rowArray);
-
- bool isFixedWidth() {return fixedWidth;};
- void setFixedWidth(bool newValue) {fixedWidth = newValue;};
-
- bool isRotated() {return rotate90;};
- void setRotated(bool newValue) {rotate90 = newValue;};
-
-private:
-
-
- uint8_t getMinPixWidth(char letter);
- bool getRawChar(char letter, const char **rowArray);
- bool getVerticalChar(char letter, const char **rowArray);
-
- static const uint8_t maxWidth = 5;
- static const uint8_t maxHeight = 5;
-
- bool rotate90;
- bool fixedWidth;
- char letterBuffer[5];
- char rotateBuffer[5];
-
-
- static const char letters[26][5];
-
- static const char numbers[10][5];
-
- static const char dot[5];
- static const char space[5];
- static const char exclam[5];
- static const char quest[5];
-
-};
-
-
-#endif