Yihui Xiong / LEDMatrix

LED matrix library for http://goo.gl/y6VnO6

Dependents:   led_matrix

LEDMatrix.h@1:b528f8e32726, 2014-02-18 (annotated)

Committer:
Yihui Xiong
Date:
Tue Feb 18 10:51:13 2014 +0800
Revision:
1:b528f8e32726
Parent:
0:13728deac7a7 
bug fix

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 0:13728deac7a7 1 /**
yihui 0:13728deac7a7 2 * LED Matrix library for http://www.seeedstudio.com/depot/ultrathin-16x32-red-led-matrix-panel-p-1582.html
yihui 0:13728deac7a7 3 * The LED Matrix panel has 32x16 pixels. Several panel can be combined together as a large screen.
yihui 0:13728deac7a7 4 *
yihui 0:13728deac7a7 5 * Coordinate & Connection (mbed -> panel 0 -> panel 1 -> ...)
yihui 0:13728deac7a7 6 * (0, 0) (0, 0)
yihui 0:13728deac7a7 7 * +--------+--------+--------+ +--------+--------+
yihui 0:13728deac7a7 8 * | 5 | 3 | 1 | | 1 | 0 |
yihui 0:13728deac7a7 9 * | | | | | | |<----- mbed
yihui 0:13728deac7a7 10 * +--------+--------+--------+ +--------+--------+
yihui 0:13728deac7a7 11 * | 4 | 2 | 0 | (64, 16)
yihui 0:13728deac7a7 12 * | | | |<----- mbed
yihui 0:13728deac7a7 13 * +--------+--------+--------+
yihui 0:13728deac7a7 14 * (96, 32)
yihui 0:13728deac7a7 15 * Copyright (c) 2013 Seeed Technology Inc.
yihui 0:13728deac7a7 16 * @auther Yihui Xiong
yihui 0:13728deac7a7 17 * @date Nov 7, 2013
yihui 0:13728deac7a7 18 * @license Apache
yihui 0:13728deac7a7 19 */
yihui 0:13728deac7a7 20
yihui 0:13728deac7a7 21
yihui 0:13728deac7a7 22 #ifndef __LED_MATRIX_H__
yihui 0:13728deac7a7 23 #define __LED_MATRIX_H__
yihui 0:13728deac7a7 24
yihui 0:13728deac7a7 25 #include "mbed.h"
yihui 0:13728deac7a7 26
yihui 0:13728deac7a7 27 class LEDMatrix {
yihui 0:13728deac7a7 28 public:
yihui 0:13728deac7a7 29 LEDMatrix(PinName pinA, PinName pinB, PinName pinC, PinName pinD, PinName pinOE, PinName pinR1, PinName pinSTB, PinName pinCLK);
yihui 0:13728deac7a7 30
yihui 0:13728deac7a7 31 /**
yihui 0:13728deac7a7 32 * set the display's display buffer and number, the buffer's size must be not less than 512 * number / 8 bytes
yihui 0:13728deac7a7 33 * @param displaybuf display buffer
yihui 0:13728deac7a7 34 * @param number panels' number
yihui 0:13728deac7a7 35 */
yihui 0:13728deac7a7 36 void begin(uint8_t *displaybuf, uint16_t width, uint16_t height);
yihui 0:13728deac7a7 37
yihui 0:13728deac7a7 38 /**
yihui 0:13728deac7a7 39 * draw a point
yihui 0:13728deac7a7 40 * @param x x
yihui 0:13728deac7a7 41 * @param y y
yihui 0:13728deac7a7 42 * @param pixel 0: led off, >0: led on
yihui 0:13728deac7a7 43 */
yihui 0:13728deac7a7 44 void drawPoint(uint16_t x, uint16_t y, uint8_t pixel);
yihui 0:13728deac7a7 45
yihui 0:13728deac7a7 46 /**
yihui 0:13728deac7a7 47 * draw a rect
yihui 0:13728deac7a7 48 * @param (x1, y1) top-left position
yihui 0:13728deac7a7 49 * @param (x2, y2) bottom-right position, not included in the rect
yihui 0:13728deac7a7 50 * @param pixel 0: rect off, >0: rect on
yihui 0:13728deac7a7 51 */
yihui 0:13728deac7a7 52 void drawRect(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint8_t pixel);
yihui 0:13728deac7a7 53
yihui 0:13728deac7a7 54 /**
yihui 0:13728deac7a7 55 * draw a image
Yihui Xiong 1:b528f8e32726 56 * @param (xoffset, yoffset) top-left offset of image
Yihui Xiong 1:b528f8e32726 57 * @param (width, height) image's width and height
yihui 0:13728deac7a7 58 * @param pixels contents, 1 bit to 1 led
yihui 0:13728deac7a7 59 */
Yihui Xiong 1:b528f8e32726 60 void drawImage(uint16_t xoffset, uint16_t yoffset, uint16_t width, uint16_t height, const uint8_t *image);
yihui 0:13728deac7a7 61
yihui 0:13728deac7a7 62 /**
yihui 0:13728deac7a7 63 * Set screen buffer to zero
yihui 0:13728deac7a7 64 */
yihui 0:13728deac7a7 65 void clear();
yihui 0:13728deac7a7 66
yihui 0:13728deac7a7 67 /**
yihui 0:13728deac7a7 68 * turn off 1/16 leds and turn on another 1/16 leds
yihui 0:13728deac7a7 69 */
yihui 0:13728deac7a7 70 void scan();
yihui 0:13728deac7a7 71
yihui 0:13728deac7a7 72 void reverse();
yihui 0:13728deac7a7 73
yihui 0:13728deac7a7 74 uint8_t isReversed();
yihui 0:13728deac7a7 75
yihui 0:13728deac7a7 76 void on();
yihui 0:13728deac7a7 77
yihui 0:13728deac7a7 78 void off();
yihui 0:13728deac7a7 79
yihui 0:13728deac7a7 80 private:
yihui 0:13728deac7a7 81 DigitalOut a, b, c, d, oe, r1, stb, clk;
yihui 0:13728deac7a7 82 uint8_t *displaybuf;
yihui 0:13728deac7a7 83 uint16_t width;
yihui 0:13728deac7a7 84 uint16_t height;
yihui 0:13728deac7a7 85 uint8_t mask;
yihui 0:13728deac7a7 86 uint8_t state;
yihui 0:13728deac7a7 87 };
yihui 0:13728deac7a7 88
yihui 0:13728deac7a7 89 #endif