Clark Jarvis
/
FRDM_GE_ColorEffects
Example project for controlling GE ColorEffect Lights
main.cpp@1:93c7d040444d, 2015-01-19 (annotated)
- Committer:
- clarkjarvis
- Date:
- Mon Jan 19 20:31:32 2015 +0000
- Revision:
- 1:93c7d040444d
- Parent:
- 0:d9cf7fb66406
Updated comments
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
clarkjarvis | 0:d9cf7fb66406 | 1 | #include "mbed.h" |
clarkjarvis | 0:d9cf7fb66406 | 2 | |
clarkjarvis | 1:93c7d040444d | 3 | DigitalOut gpo(D12); // Output pin for lights |
clarkjarvis | 0:d9cf7fb66406 | 4 | DigitalOut led_red(LED_RED); |
clarkjarvis | 0:d9cf7fb66406 | 5 | DigitalOut led_green(LED_GREEN); |
clarkjarvis | 0:d9cf7fb66406 | 6 | DigitalOut led_blue(LED_BLUE); |
clarkjarvis | 0:d9cf7fb66406 | 7 | |
clarkjarvis | 0:d9cf7fb66406 | 8 | #define AL 18 // Array Length |
clarkjarvis | 0:d9cf7fb66406 | 9 | #define NB 50 // Number of Bulbs |
clarkjarvis | 0:d9cf7fb66406 | 10 | #define LUM 0xFF // Brightness |
clarkjarvis | 0:d9cf7fb66406 | 11 | |
clarkjarvis | 1:93c7d040444d | 12 | //Example RGB Color Array (18) |
clarkjarvis | 0:d9cf7fb66406 | 13 | unsigned int rval[AL] = {0xF,0xF,0xF,0xF,0xA,0x8,0x6,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x6,0x8,0xA}; |
clarkjarvis | 0:d9cf7fb66406 | 14 | unsigned int gval[AL] = {0x0,0x0,0x0,0x0,0x6,0x8,0xA,0xF,0xF,0xF,0xA,0x8,0x6,0x0,0x0,0x0,0x0,0x0}; |
clarkjarvis | 0:d9cf7fb66406 | 15 | unsigned int bval[AL] = {0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x6,0x8,0xA,0xF,0xF,0xA,0x8,0x6}; |
clarkjarvis | 0:d9cf7fb66406 | 16 | |
clarkjarvis | 1:93c7d040444d | 17 | // GPIO output to send a logical 0 |
clarkjarvis | 0:d9cf7fb66406 | 18 | void s0() |
clarkjarvis | 0:d9cf7fb66406 | 19 | { |
clarkjarvis | 0:d9cf7fb66406 | 20 | gpo=0; |
clarkjarvis | 0:d9cf7fb66406 | 21 | wait_us(10); |
clarkjarvis | 0:d9cf7fb66406 | 22 | gpo=1; |
clarkjarvis | 0:d9cf7fb66406 | 23 | wait_us(20); |
clarkjarvis | 0:d9cf7fb66406 | 24 | } |
clarkjarvis | 0:d9cf7fb66406 | 25 | |
clarkjarvis | 1:93c7d040444d | 26 | // GPIO output to send a logical 1 |
clarkjarvis | 0:d9cf7fb66406 | 27 | void s1() |
clarkjarvis | 0:d9cf7fb66406 | 28 | { |
clarkjarvis | 0:d9cf7fb66406 | 29 | gpo=0; |
clarkjarvis | 0:d9cf7fb66406 | 30 | wait_us(20); |
clarkjarvis | 0:d9cf7fb66406 | 31 | gpo=1; |
clarkjarvis | 0:d9cf7fb66406 | 32 | wait_us(10); |
clarkjarvis | 0:d9cf7fb66406 | 33 | } |
clarkjarvis | 0:d9cf7fb66406 | 34 | |
clarkjarvis | 1:93c7d040444d | 35 | // GPIO output to send an "End of Frame" marker |
clarkjarvis | 0:d9cf7fb66406 | 36 | void end_frame() |
clarkjarvis | 0:d9cf7fb66406 | 37 | { |
clarkjarvis | 0:d9cf7fb66406 | 38 | gpo=0; |
clarkjarvis | 0:d9cf7fb66406 | 39 | wait_us(30); |
clarkjarvis | 0:d9cf7fb66406 | 40 | } |
clarkjarvis | 0:d9cf7fb66406 | 41 | |
clarkjarvis | 1:93c7d040444d | 42 | // Parse data value to serial process 0/1's |
clarkjarvis | 0:d9cf7fb66406 | 43 | void sdata(unsigned int data, int length) |
clarkjarvis | 0:d9cf7fb66406 | 44 | { |
clarkjarvis | 0:d9cf7fb66406 | 45 | unsigned int data_bit; |
clarkjarvis | 0:d9cf7fb66406 | 46 | |
clarkjarvis | 0:d9cf7fb66406 | 47 | for (int i=(length-1); i>=0; i--) { |
clarkjarvis | 0:d9cf7fb66406 | 48 | data_bit = (data>>i)&0x01; |
clarkjarvis | 0:d9cf7fb66406 | 49 | if (data_bit==0) { |
clarkjarvis | 0:d9cf7fb66406 | 50 | s0(); |
clarkjarvis | 0:d9cf7fb66406 | 51 | } else if (data_bit==1) { |
clarkjarvis | 0:d9cf7fb66406 | 52 | s1(); |
clarkjarvis | 0:d9cf7fb66406 | 53 | } |
clarkjarvis | 0:d9cf7fb66406 | 54 | } |
clarkjarvis | 0:d9cf7fb66406 | 55 | } |
clarkjarvis | 0:d9cf7fb66406 | 56 | |
clarkjarvis | 1:93c7d040444d | 57 | // Send frame of data to control a single pixel |
clarkjarvis | 0:d9cf7fb66406 | 58 | void sframe(int channel, unsigned int lumm, unsigned int R, unsigned int G, unsigned int B) |
clarkjarvis | 0:d9cf7fb66406 | 59 | { |
clarkjarvis | 0:d9cf7fb66406 | 60 | // Send "1" value to start Frame |
clarkjarvis | 0:d9cf7fb66406 | 61 | s1(); |
clarkjarvis | 0:d9cf7fb66406 | 62 | // Send Address |
clarkjarvis | 0:d9cf7fb66406 | 63 | sdata(channel,6); |
clarkjarvis | 0:d9cf7fb66406 | 64 | // Send Luminosity |
clarkjarvis | 0:d9cf7fb66406 | 65 | sdata(lumm,8); |
clarkjarvis | 0:d9cf7fb66406 | 66 | // Send Blue 4-bits |
clarkjarvis | 0:d9cf7fb66406 | 67 | sdata(B,4); |
clarkjarvis | 0:d9cf7fb66406 | 68 | // Send Green 4-bits |
clarkjarvis | 0:d9cf7fb66406 | 69 | sdata(G,4); |
clarkjarvis | 0:d9cf7fb66406 | 70 | // Send Red 4-bits |
clarkjarvis | 0:d9cf7fb66406 | 71 | sdata(R,4); |
clarkjarvis | 0:d9cf7fb66406 | 72 | // Send End of Frame Marker |
clarkjarvis | 0:d9cf7fb66406 | 73 | end_frame(); |
clarkjarvis | 0:d9cf7fb66406 | 74 | } |
clarkjarvis | 0:d9cf7fb66406 | 75 | |
clarkjarvis | 0:d9cf7fb66406 | 76 | int main() |
clarkjarvis | 0:d9cf7fb66406 | 77 | { |
clarkjarvis | 0:d9cf7fb66406 | 78 | led_red=1; |
clarkjarvis | 0:d9cf7fb66406 | 79 | led_green=1; |
clarkjarvis | 0:d9cf7fb66406 | 80 | led_blue=1; |
clarkjarvis | 0:d9cf7fb66406 | 81 | gpo=0; |
clarkjarvis | 0:d9cf7fb66406 | 82 | |
clarkjarvis | 0:d9cf7fb66406 | 83 | wait_ms(1000); |
clarkjarvis | 0:d9cf7fb66406 | 84 | |
clarkjarvis | 1:93c7d040444d | 85 | // Initialize the light addresses (required after initially powering lights) |
clarkjarvis | 0:d9cf7fb66406 | 86 | for (int i=0; i<=NB; i++) { |
clarkjarvis | 0:d9cf7fb66406 | 87 | sframe(i,0,0,0,0); |
clarkjarvis | 0:d9cf7fb66406 | 88 | } |
clarkjarvis | 0:d9cf7fb66406 | 89 | |
clarkjarvis | 1:93c7d040444d | 90 | // Example light sequence |
clarkjarvis | 0:d9cf7fb66406 | 91 | while(1) { |
clarkjarvis | 0:d9cf7fb66406 | 92 | for (int i=0; i<AL; i++) { |
clarkjarvis | 0:d9cf7fb66406 | 93 | for (int j=0; j<NB; j++) { |
clarkjarvis | 0:d9cf7fb66406 | 94 | sframe(j,LUM,rval[(i+j)%AL],gval[(i+j)%AL],bval[(i+j)%AL]); |
clarkjarvis | 0:d9cf7fb66406 | 95 | } |
clarkjarvis | 0:d9cf7fb66406 | 96 | wait_ms(10); |
clarkjarvis | 0:d9cf7fb66406 | 97 | } |
clarkjarvis | 0:d9cf7fb66406 | 98 | } |
clarkjarvis | 0:d9cf7fb66406 | 99 | } |