Class available to make using NeoPixel lights very simple
easyNeo.cpp@0:cfbe334f4b1c, 2015-02-15 (annotated)
- Committer:
- dannellyz
- Date:
- Sun Feb 15 21:12:13 2015 +0000
- Revision:
- 0:cfbe334f4b1c
round1 easyNeo class for NeoPixel leds;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
dannellyz | 0:cfbe334f4b1c | 1 | #include "mbed.h" |
dannellyz | 0:cfbe334f4b1c | 2 | #include "neopixel.h" |
dannellyz | 0:cfbe334f4b1c | 3 | #include "easyNeo.h" |
dannellyz | 0:cfbe334f4b1c | 4 | #define DATA_PIN p5 |
dannellyz | 0:cfbe334f4b1c | 5 | |
dannellyz | 0:cfbe334f4b1c | 6 | easyNeo::easyNeo(int leds) |
dannellyz | 0:cfbe334f4b1c | 7 | { |
dannellyz | 0:cfbe334f4b1c | 8 | numLeds = leds; |
dannellyz | 0:cfbe334f4b1c | 9 | |
dannellyz | 0:cfbe334f4b1c | 10 | } |
dannellyz | 0:cfbe334f4b1c | 11 | uint8_t easyNeo::c2i(char c) |
dannellyz | 0:cfbe334f4b1c | 12 | { |
dannellyz | 0:cfbe334f4b1c | 13 | if( c >= '0' && c <= '9' ) return c-'0'; |
dannellyz | 0:cfbe334f4b1c | 14 | if( c >= 'A' && c <= 'F' ) return c-'A'+10; |
dannellyz | 0:cfbe334f4b1c | 15 | if( c >= 'a' && c <= 'f' ) return c-'a'+10; |
dannellyz | 0:cfbe334f4b1c | 16 | return 0; |
dannellyz | 0:cfbe334f4b1c | 17 | } |
dannellyz | 0:cfbe334f4b1c | 18 | |
dannellyz | 0:cfbe334f4b1c | 19 | void easyNeo::setPixel(neopixel::Pixel * buffer, uint32_t index, uint8_t red, uint8_t green, uint8_t blue, uint32_t length) |
dannellyz | 0:cfbe334f4b1c | 20 | { |
dannellyz | 0:cfbe334f4b1c | 21 | if (index >= length ) { |
dannellyz | 0:cfbe334f4b1c | 22 | return; |
dannellyz | 0:cfbe334f4b1c | 23 | } |
dannellyz | 0:cfbe334f4b1c | 24 | buffer[index].red = red; |
dannellyz | 0:cfbe334f4b1c | 25 | buffer[index].green = green; |
dannellyz | 0:cfbe334f4b1c | 26 | buffer[index].blue = blue; |
dannellyz | 0:cfbe334f4b1c | 27 | } |
dannellyz | 0:cfbe334f4b1c | 28 | |
dannellyz | 0:cfbe334f4b1c | 29 | |
dannellyz | 0:cfbe334f4b1c | 30 | void easyNeo::setByHex(char* hexString){ |
dannellyz | 0:cfbe334f4b1c | 31 | |
dannellyz | 0:cfbe334f4b1c | 32 | DigitalIn(DATA_PIN, PullDown); |
dannellyz | 0:cfbe334f4b1c | 33 | |
dannellyz | 0:cfbe334f4b1c | 34 | // The pixel array control class. |
dannellyz | 0:cfbe334f4b1c | 35 | neopixel::PixelArray array(DATA_PIN); |
dannellyz | 0:cfbe334f4b1c | 36 | |
dannellyz | 0:cfbe334f4b1c | 37 | // 8 is the number of pixels |
dannellyz | 0:cfbe334f4b1c | 38 | neopixel::Pixel buffer[numLeds]; |
dannellyz | 0:cfbe334f4b1c | 39 | Serial pc(USBTX, USBRX); //Initalise PC serial comms |
dannellyz | 0:cfbe334f4b1c | 40 | int i,j,k,l; |
dannellyz | 0:cfbe334f4b1c | 41 | for(i=0, l = 0; i < (6*numLeds); i+=6,l ++){ |
dannellyz | 0:cfbe334f4b1c | 42 | //pc.printf("val of i %d\n",i); |
dannellyz | 0:cfbe334f4b1c | 43 | int vals[3] = {0,0,0}; |
dannellyz | 0:cfbe334f4b1c | 44 | for(k=i,j=0; k < i+6; k+=2,j++){ |
dannellyz | 0:cfbe334f4b1c | 45 | //pc.printf("Index: %d %d\n",k,k+1); |
dannellyz | 0:cfbe334f4b1c | 46 | //pc.printf("Characters: %c %c\n",hexString[k],hexString[k+1]); |
dannellyz | 0:cfbe334f4b1c | 47 | //pc.printf("Value: %d\n",(c2i(hexString[k])*16+c2i(hexString[k+1]))); |
dannellyz | 0:cfbe334f4b1c | 48 | vals[j] = (c2i(hexString[k])*16 + c2i(hexString[k+1])); |
dannellyz | 0:cfbe334f4b1c | 49 | } |
dannellyz | 0:cfbe334f4b1c | 50 | pc.printf("%d %d %d \n",vals[0],vals[1],vals[2]); |
dannellyz | 0:cfbe334f4b1c | 51 | easyNeo::setPixel(buffer, l, vals[0], vals[1], vals[2], numLeds); |
dannellyz | 0:cfbe334f4b1c | 52 | } |
dannellyz | 0:cfbe334f4b1c | 53 | |
dannellyz | 0:cfbe334f4b1c | 54 | array.update(buffer, numLeds); |
dannellyz | 0:cfbe334f4b1c | 55 | |
dannellyz | 0:cfbe334f4b1c | 56 | } |
dannellyz | 0:cfbe334f4b1c | 57 | |
dannellyz | 0:cfbe334f4b1c | 58 | |
dannellyz | 0:cfbe334f4b1c | 59 | void easyNeo::clear(){ |
dannellyz | 0:cfbe334f4b1c | 60 | |
dannellyz | 0:cfbe334f4b1c | 61 | for (int i = 0; i< numLeds; i = i++) { |
dannellyz | 0:cfbe334f4b1c | 62 | easyNeo::setByHex("000000"); |
dannellyz | 0:cfbe334f4b1c | 63 | } |
dannellyz | 0:cfbe334f4b1c | 64 | } |
dannellyz | 0:cfbe334f4b1c | 65 | |
dannellyz | 0:cfbe334f4b1c | 66 | void easyNeo::update(neopixel::Pixel * buffer){ |
dannellyz | 0:cfbe334f4b1c | 67 | |
dannellyz | 0:cfbe334f4b1c | 68 | DigitalIn(DATA_PIN, PullDown); |
dannellyz | 0:cfbe334f4b1c | 69 | |
dannellyz | 0:cfbe334f4b1c | 70 | // The pixel array control class. |
dannellyz | 0:cfbe334f4b1c | 71 | neopixel::PixelArray array(DATA_PIN); |
dannellyz | 0:cfbe334f4b1c | 72 | |
dannellyz | 0:cfbe334f4b1c | 73 | array.update(buffer, numLeds); |
dannellyz | 0:cfbe334f4b1c | 74 | } |
dannellyz | 0:cfbe334f4b1c | 75 | |
dannellyz | 0:cfbe334f4b1c | 76 | void easyNeo::lightTest() |
dannellyz | 0:cfbe334f4b1c | 77 | { |
dannellyz | 0:cfbe334f4b1c | 78 | DigitalIn(DATA_PIN, PullDown); |
dannellyz | 0:cfbe334f4b1c | 79 | |
dannellyz | 0:cfbe334f4b1c | 80 | // The pixel array control class. |
dannellyz | 0:cfbe334f4b1c | 81 | neopixel::PixelArray array(DATA_PIN); |
dannellyz | 0:cfbe334f4b1c | 82 | |
dannellyz | 0:cfbe334f4b1c | 83 | // 8 is the number of pixels |
dannellyz | 0:cfbe334f4b1c | 84 | neopixel::Pixel buffer[numLeds]; |
dannellyz | 0:cfbe334f4b1c | 85 | |
dannellyz | 0:cfbe334f4b1c | 86 | // step through three colors with the same brigtness |
dannellyz | 0:cfbe334f4b1c | 87 | uint32_t i; |
dannellyz | 0:cfbe334f4b1c | 88 | |
dannellyz | 0:cfbe334f4b1c | 89 | //Test Red |
dannellyz | 0:cfbe334f4b1c | 90 | for (i = 0x00; i<= 0xC8; i = i + 0x0A) { |
dannellyz | 0:cfbe334f4b1c | 91 | for(int k = 0; k < numLeds; k++){ |
dannellyz | 0:cfbe334f4b1c | 92 | easyNeo::setPixel(buffer, k, i, 0x00, 0x00, numLeds); |
dannellyz | 0:cfbe334f4b1c | 93 | array.update(buffer, numLeds); |
dannellyz | 0:cfbe334f4b1c | 94 | wait_ms(100); |
dannellyz | 0:cfbe334f4b1c | 95 | } |
dannellyz | 0:cfbe334f4b1c | 96 | } |
dannellyz | 0:cfbe334f4b1c | 97 | //Test Blue |
dannellyz | 0:cfbe334f4b1c | 98 | for (i = 0x00; i<= 0xC8; i = i + 0x0A) { |
dannellyz | 0:cfbe334f4b1c | 99 | for(int k = 0; k < numLeds; k++){ |
dannellyz | 0:cfbe334f4b1c | 100 | easyNeo::setPixel(buffer, k,0x00, i, 0x00, numLeds); |
dannellyz | 0:cfbe334f4b1c | 101 | array.update(buffer, numLeds); |
dannellyz | 0:cfbe334f4b1c | 102 | wait_ms(100); |
dannellyz | 0:cfbe334f4b1c | 103 | } |
dannellyz | 0:cfbe334f4b1c | 104 | } |
dannellyz | 0:cfbe334f4b1c | 105 | //Test Green |
dannellyz | 0:cfbe334f4b1c | 106 | for (i = 0x00; i<= 0xC8; i = i + 0x0A) { |
dannellyz | 0:cfbe334f4b1c | 107 | for(int k = 0; k < numLeds; k++){ |
dannellyz | 0:cfbe334f4b1c | 108 | easyNeo::setPixel(buffer, k,0x00, 0x00, i, numLeds); |
dannellyz | 0:cfbe334f4b1c | 109 | array.update(buffer, numLeds); |
dannellyz | 0:cfbe334f4b1c | 110 | wait_ms(100); |
dannellyz | 0:cfbe334f4b1c | 111 | } |
dannellyz | 0:cfbe334f4b1c | 112 | } |
dannellyz | 0:cfbe334f4b1c | 113 | } |