LED matrix library for http://goo.gl/y6VnO6
Diff: LEDMatrix.h
- Revision:
- 0:13728deac7a7
- Child:
- 1:b528f8e32726
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/LEDMatrix.h Fri Nov 08 06:45:52 2013 +0000 @@ -0,0 +1,89 @@ +/** + * LED Matrix library for http://www.seeedstudio.com/depot/ultrathin-16x32-red-led-matrix-panel-p-1582.html + * The LED Matrix panel has 32x16 pixels. Several panel can be combined together as a large screen. + * + * Coordinate & Connection (mbed -> panel 0 -> panel 1 -> ...) + * (0, 0) (0, 0) + * +--------+--------+--------+ +--------+--------+ + * | 5 | 3 | 1 | | 1 | 0 | + * | | | | | | |<----- mbed + * +--------+--------+--------+ +--------+--------+ + * | 4 | 2 | 0 | (64, 16) + * | | | |<----- mbed + * +--------+--------+--------+ + * (96, 32) + * Copyright (c) 2013 Seeed Technology Inc. + * @auther Yihui Xiong + * @date Nov 7, 2013 + * @license Apache + */ + + +#ifndef __LED_MATRIX_H__ +#define __LED_MATRIX_H__ + +#include "mbed.h" + +class LEDMatrix { +public: + LEDMatrix(PinName pinA, PinName pinB, PinName pinC, PinName pinD, PinName pinOE, PinName pinR1, PinName pinSTB, PinName pinCLK); + + /** + * set the display's display buffer and number, the buffer's size must be not less than 512 * number / 8 bytes + * @param displaybuf display buffer + * @param number panels' number + */ + void begin(uint8_t *displaybuf, uint16_t width, uint16_t height); + + /** + * draw a point + * @param x x + * @param y y + * @param pixel 0: led off, >0: led on + */ + void drawPoint(uint16_t x, uint16_t y, uint8_t pixel); + + /** + * draw a rect + * @param (x1, y1) top-left position + * @param (x2, y2) bottom-right position, not included in the rect + * @param pixel 0: rect off, >0: rect on + */ + void drawRect(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint8_t pixel); + + /** + * draw a image + * @param (x1, y1) top-left position + * @param (x2, y2) bottom-right position, not included in the rect + * @param pixels contents, 1 bit to 1 led + */ + void drawImage(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint8_t *image); + + /** + * Set screen buffer to zero + */ + void clear(); + + /** + * turn off 1/16 leds and turn on another 1/16 leds + */ + void scan(); + + void reverse(); + + uint8_t isReversed(); + + void on(); + + void off(); + +private: + DigitalOut a, b, c, d, oe, r1, stb, clk; + uint8_t *displaybuf; + uint16_t width; + uint16_t height; + uint8_t mask; + uint8_t state; +}; + +#endif