RGBpixel: Difference between revisions
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(Added arduino code sample for test pattern) |
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<pre> | <pre> | ||
/* | |||
Developed by: thex (noisebridge) | |||
Updated: 20131122 | |||
https://noisebridge.net/wiki/RGBpixel | |||
*/ | |||
#include <SPI.h> | #include <SPI.h> | ||
int waitTime = 100; | |||
byte maxPower = 0x33; | |||
int offset = 0; | int offset = 0; | ||
void setup() { | /* | ||
color hex r g b deg | |||
========================================== | |||
RED #FF0000 255, 0, 0 0 | |||
ORANGE #FF7F00 255, 127, 0 30 | |||
YELLOW #FFFF00 255, 255, 0 60 | |||
CHARTREUSE #7FFF00 127, 255, 0 90 | |||
GREEN #00FF00 0, 255, 0 120 | |||
SPRING #00FF7F 0, 255, 127 150 | |||
CYAN #00FFFF 0, 255, 255 180 | |||
AZURE #007FFF 0, 127, 255 210 | |||
BLUE #0000FF 0, 0, 255 240 | |||
VIOLET #7F00FF 127, 0, 255 270 | |||
MAGENTA #FF00FF 255, 0, 255 300 | |||
ROSE #FF007F 255, 0, 127 330 | |||
*/ | |||
void setup() | |||
{ | |||
// Set the SPI parameters | // Set the SPI parameters | ||
SPI.begin(); | SPI.begin(); | ||
Line 28: | Line 54: | ||
} | } | ||
void loop() { | void loop() | ||
{ | |||
for (int o = 0; o < offset; o++) | for (int o = 0; o < offset; o++) | ||
sendColor( | sendColor(maxPower, maxPower, maxPower); | ||
offset++; | offset++; | ||
if (offset > | if (offset > 25) | ||
offset = 0; | offset = 0; | ||
for (int i = 0; i < | for (int i = 0; i < 2; i++) | ||
{ | { | ||
sendColor( | // RED | ||
sendColor(0x00, | sendColor(maxPower,0x00,0x00); | ||
sendColor(0x00,0x00, | // ORANGE | ||
sendColor(maxPower, maxPower>>2, 0x00); | |||
// YELLOW | |||
sendColor(maxPower, maxPower, 0x00); | |||
// CHARTREUSE | |||
sendColor(maxPower>>2, maxPower, 0x00); | |||
// GREEN | |||
sendColor(0x00,maxPower,0x00); | |||
// SPRING | |||
sendColor(0x00, maxPower, maxPower>>2); | |||
// CYAN | |||
sendColor(0x00, maxPower, maxPower); | |||
// AZURE | |||
sendColor(0x00, maxPower>>2, maxPower); | |||
// BLUE | |||
sendColor(0x00,0x00,maxPower); | |||
// VIOLOET | |||
sendColor(maxPower>>2, 0x00, maxPower); | |||
// MAGENTA | |||
sendColor(maxPower, 0x00, maxPower); | |||
// ROSE | |||
sendColor(maxPower, 0x00, maxPower>>2); | |||
} | } | ||
sendEmptyFrame(); | sendEmptyFrame(); | ||
delay( | delay(waitTime); | ||
} | } | ||
// Extrapolated functions from TCL Library | // Extrapolated functions from TCL Library | ||
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} | } | ||
void sendColor(byte red, byte green, byte blue) { | void sendColor(byte red, byte green, byte blue) | ||
{ | |||
byte flag; | byte flag; | ||
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} | } | ||
byte makeFlag(byte red, byte green, byte blue) { | byte makeFlag(byte red, byte green, byte blue) | ||
{ | |||
byte flag = 0; | byte flag = 0; | ||
Revision as of 05:28, 22 November 2013
Addressable RGB LED "pixels" from Cool Neon
Wiring
- RED - +5v
- GREEN - Data
- YELLOW - Clock
- BLUE - Ground
Code
/* Developed by: thex (noisebridge) Updated: 20131122 https://noisebridge.net/wiki/RGBpixel */ #include <SPI.h> int waitTime = 100; byte maxPower = 0x33; int offset = 0; /* color hex r g b deg ========================================== RED #FF0000 255, 0, 0 0 ORANGE #FF7F00 255, 127, 0 30 YELLOW #FFFF00 255, 255, 0 60 CHARTREUSE #7FFF00 127, 255, 0 90 GREEN #00FF00 0, 255, 0 120 SPRING #00FF7F 0, 255, 127 150 CYAN #00FFFF 0, 255, 255 180 AZURE #007FFF 0, 127, 255 210 BLUE #0000FF 0, 0, 255 240 VIOLET #7F00FF 127, 0, 255 270 MAGENTA #FF00FF 255, 0, 255 300 ROSE #FF007F 255, 0, 127 330 */ void setup() { // Set the SPI parameters SPI.begin(); SPI.setBitOrder(MSBFIRST); SPI.setDataMode(SPI_MODE0); SPI.setClockDivider(SPI_CLOCK_DIV2); sendEmptyFrame(); } void loop() { for (int o = 0; o < offset; o++) sendColor(maxPower, maxPower, maxPower); offset++; if (offset > 25) offset = 0; for (int i = 0; i < 2; i++) { // RED sendColor(maxPower,0x00,0x00); // ORANGE sendColor(maxPower, maxPower>>2, 0x00); // YELLOW sendColor(maxPower, maxPower, 0x00); // CHARTREUSE sendColor(maxPower>>2, maxPower, 0x00); // GREEN sendColor(0x00,maxPower,0x00); // SPRING sendColor(0x00, maxPower, maxPower>>2); // CYAN sendColor(0x00, maxPower, maxPower); // AZURE sendColor(0x00, maxPower>>2, maxPower); // BLUE sendColor(0x00,0x00,maxPower); // VIOLOET sendColor(maxPower>>2, 0x00, maxPower); // MAGENTA sendColor(maxPower, 0x00, maxPower); // ROSE sendColor(maxPower, 0x00, maxPower>>2); } sendEmptyFrame(); delay(waitTime); } // Extrapolated functions from TCL Library void sendFrame(byte flag, byte red, byte green, byte blue) { SPI.transfer(flag); SPI.transfer(blue); SPI.transfer(green); SPI.transfer(red); } void sendColor(byte red, byte green, byte blue) { byte flag; flag = makeFlag(red,green,blue); sendFrame(flag,red,green,blue); } void sendEmptyFrame() { sendFrame(0x00, 0x00, 0x00, 0x00); } byte makeFlag(byte red, byte green, byte blue) { byte flag = 0; flag = (red&0xC0)>>6; flag |= ((green&0xC0)>>4); flag |= ((blue&0xC0)>>2); return ~flag; }