Antonio De Lima Fernandes / Mbed 2 deprecated GUILED_8x8_Demo

Simple 8x8 LED Matrix controller which interfaces with a Processing GUI over serial to display sketches

Dependencies:   Multi_WS2811 mbed

Fork of Multi_WS2811_test by Ned Konz

main.cpp@34:0f1968ca238a, 2014-11-15 (annotated)

Committer:
antoniorohit
Date:
Sat Nov 15 02:04:37 2014 +0000
Revision:
34:0f1968ca238a
Parent:
33:7973b70d4fab 
Removed unneccesary files;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bikeNomad 22:abfed71656bd 1 #include "mbed.h"
bikeNomad 22:abfed71656bd 2 #include "WS2811.h"
bikeNomad 22:abfed71656bd 3
bikeNomad 23:33df42ff2541 4 // per LED: 3 * 20 mA = 60mA max
bikeNomad 23:33df42ff2541 5 // 60 LEDs: 60 * 60mA = 3600 mA max
bikeNomad 25:751c89f7e654 6 // 120 LEDs: 7200 mA max
bikeNomad 22:abfed71656bd 7 unsigned const nLEDs = MAX_LEDS_PER_STRIP;
bikeNomad 22:abfed71656bd 8
antoniorohit 33:7973b70d4fab 9 unsigned const DATA_OUT_PIN1 = 7;
antoniorohit 33:7973b70d4fab 10 unsigned const DATA_OUT_PIN2 = 0;
antoniorohit 33:7973b70d4fab 11 unsigned const DATA_OUT_PIN3 = 3;
antoniorohit 33:7973b70d4fab 12 unsigned const DATA_OUT_PIN4 = 4;
antoniorohit 33:7973b70d4fab 13 unsigned const DATA_OUT_PIN5 = 5;
antoniorohit 33:7973b70d4fab 14 unsigned const DATA_OUT_PIN6 = 6;
antoniorohit 33:7973b70d4fab 15 unsigned const DATA_OUT_PIN7 = 10;
antoniorohit 33:7973b70d4fab 16 unsigned const DATA_OUT_PIN8 = 11;
bikeNomad 22:abfed71656bd 17
bikeNomad 22:abfed71656bd 18 Serial pc(USBTX, USBRX);
bikeNomad 20:b9d76e567637 19
antoniorohit 32:7b60b9add4b5 20 static void clearScreen(WS2811 &strip)
bikeNomad 24:feb1dae0403a 21 {
bikeNomad 24:feb1dae0403a 22 unsigned nLEDs = strip.numPixels();
bikeNomad 24:feb1dae0403a 23 for (unsigned i = 0; i < nLEDs; i++) {
antoniorohit 32:7b60b9add4b5 24 strip.setPixelColor(i, 0, 0, 0);
bikeNomad 24:feb1dae0403a 25 }
bikeNomad 24:feb1dae0403a 26 strip.show();
bikeNomad 24:feb1dae0403a 27 }
bikeNomad 24:feb1dae0403a 28
bikeNomad 22:abfed71656bd 29 int main(void)
bikeNomad 22:abfed71656bd 30 {
antoniorohit 32:7b60b9add4b5 31 pc.baud(9600);
antoniorohit 33:7973b70d4fab 32 WS2811 *lightStrip;
bikeNomad 25:751c89f7e654 33 WS2811 lightStrip1(nLEDs, DATA_OUT_PIN1);
bikeNomad 25:751c89f7e654 34 WS2811 lightStrip2(nLEDs, DATA_OUT_PIN2);
antoniorohit 33:7973b70d4fab 35 WS2811 lightStrip3(nLEDs, DATA_OUT_PIN3);
antoniorohit 33:7973b70d4fab 36 WS2811 lightStrip4(nLEDs, DATA_OUT_PIN4);
antoniorohit 33:7973b70d4fab 37 WS2811 lightStrip5(nLEDs, DATA_OUT_PIN5);
antoniorohit 33:7973b70d4fab 38 WS2811 lightStrip6(nLEDs, DATA_OUT_PIN6);
antoniorohit 33:7973b70d4fab 39 WS2811 lightStrip7(nLEDs, DATA_OUT_PIN7);
antoniorohit 33:7973b70d4fab 40 WS2811 lightStrip8(nLEDs, DATA_OUT_PIN8);
antoniorohit 33:7973b70d4fab 41
bikeNomad 25:751c89f7e654 42 lightStrip1.begin();
bikeNomad 25:751c89f7e654 43 lightStrip2.begin();
antoniorohit 33:7973b70d4fab 44 lightStrip3.begin();
antoniorohit 33:7973b70d4fab 45 lightStrip4.begin();
antoniorohit 33:7973b70d4fab 46 lightStrip5.begin();
antoniorohit 33:7973b70d4fab 47 lightStrip6.begin();
antoniorohit 33:7973b70d4fab 48 lightStrip7.begin();
antoniorohit 33:7973b70d4fab 49 lightStrip8.begin();
antoniorohit 32:7b60b9add4b5 50
antoniorohit 32:7b60b9add4b5 51 uint8_t q = 0;
antoniorohit 33:7973b70d4fab 52 char char_buff[10];
antoniorohit 33:7973b70d4fab 53 char curr_char = 0;
antoniorohit 33:7973b70d4fab 54
bikeNomad 24:feb1dae0403a 55 for (;;) {
antoniorohit 33:7973b70d4fab 56 /* I have defined a custom UART packet protocol
antoniorohit 33:7973b70d4fab 57 * A general packet may look like:
antoniorohit 34:0f1968ca238a 58 *
antoniorohit 33:7973b70d4fab 59 * array[0] x-coordinate [0, 31]
antoniorohit 33:7973b70d4fab 60 * array[1] y-coordinate [0, 15]
antoniorohit 33:7973b70d4fab 61 * array[2] R (5-bit)
antoniorohit 33:7973b70d4fab 62 * array[3] G (5-bit)
antoniorohit 33:7973b70d4fab 63 * array[4] B (5-bit)
antoniorohit 33:7973b70d4fab 64 * array[5] 254 (delimiter)
antoniorohit 33:7973b70d4fab 65 */
antoniorohit 33:7973b70d4fab 66 while(curr_char != 255 && q < 7)
antoniorohit 33:7973b70d4fab 67 {
antoniorohit 33:7973b70d4fab 68 /* If there is UART traffic */
antoniorohit 33:7973b70d4fab 69 if(pc.readable())
antoniorohit 33:7973b70d4fab 70 {
antoniorohit 33:7973b70d4fab 71 curr_char = pc.getc();
antoniorohit 33:7973b70d4fab 72 char_buff[q] = curr_char;
antoniorohit 33:7973b70d4fab 73 q++;
antoniorohit 33:7973b70d4fab 74 }
antoniorohit 33:7973b70d4fab 75 }
antoniorohit 33:7973b70d4fab 76
antoniorohit 33:7973b70d4fab 77 if((char_buff[0] == 254) && (q >= 5)){
antoniorohit 33:7973b70d4fab 78 switch(int(char_buff[2])){
antoniorohit 33:7973b70d4fab 79 case 0:
antoniorohit 33:7973b70d4fab 80 lightStrip = &lightStrip1;
antoniorohit 33:7973b70d4fab 81 break;
antoniorohit 33:7973b70d4fab 82 case 1:
antoniorohit 33:7973b70d4fab 83 lightStrip = &lightStrip2;
antoniorohit 33:7973b70d4fab 84 break;
antoniorohit 33:7973b70d4fab 85 case 2:
antoniorohit 33:7973b70d4fab 86 lightStrip = &lightStrip3;
antoniorohit 33:7973b70d4fab 87 break;
antoniorohit 33:7973b70d4fab 88 case 3:
antoniorohit 33:7973b70d4fab 89 lightStrip = &lightStrip4;
antoniorohit 33:7973b70d4fab 90 break;
antoniorohit 33:7973b70d4fab 91 case 4:
antoniorohit 33:7973b70d4fab 92 lightStrip = &lightStrip5;
antoniorohit 33:7973b70d4fab 93 break;
antoniorohit 33:7973b70d4fab 94 case 5:
antoniorohit 33:7973b70d4fab 95 lightStrip = &lightStrip6;
antoniorohit 33:7973b70d4fab 96 break;
antoniorohit 33:7973b70d4fab 97 case 6:
antoniorohit 33:7973b70d4fab 98 lightStrip = &lightStrip7;
antoniorohit 33:7973b70d4fab 99 break;
antoniorohit 33:7973b70d4fab 100 case 7:
antoniorohit 33:7973b70d4fab 101 lightStrip = &lightStrip8;
antoniorohit 33:7973b70d4fab 102 break;
antoniorohit 33:7973b70d4fab 103 default:
antoniorohit 33:7973b70d4fab 104 lightStrip = &lightStrip1;
antoniorohit 33:7973b70d4fab 105 q = 0;
antoniorohit 33:7973b70d4fab 106 break;
antoniorohit 33:7973b70d4fab 107 }
antoniorohit 33:7973b70d4fab 108
antoniorohit 33:7973b70d4fab 109 (*lightStrip).setPixelColor(int(char_buff[1]), int(char_buff[3]), int(char_buff[4]), int(char_buff[5]));
antoniorohit 33:7973b70d4fab 110
antoniorohit 33:7973b70d4fab 111 (*lightStrip).show();
antoniorohit 33:7973b70d4fab 112 pc.putc(48+int(char_buff[0]));
antoniorohit 33:7973b70d4fab 113 }
antoniorohit 33:7973b70d4fab 114 else{
antoniorohit 33:7973b70d4fab 115 //clearScreen(*lightStrip);
antoniorohit 33:7973b70d4fab 116 }
antoniorohit 33:7973b70d4fab 117 q = 0;
antoniorohit 33:7973b70d4fab 118 curr_char = 0;
antoniorohit 33:7973b70d4fab 119 WS2811::startDMA();
antoniorohit 32:7b60b9add4b5 120
bikeNomad 23:33df42ff2541 121 }
bikeNomad 22:abfed71656bd 122 }
bikeNomad 22:abfed71656bd 123