RGBpixel: Difference between revisions
Jump to navigation
Jump to search
(Created page with "Addressable RGB LED "pixels" from Cool Neon == Wiring == * RED - +5v * GREEN - Data * YELLOW - Clock * BLUE - Ground 400px") |
(Added arduino code sample for test pattern) |
||
Line 8: | Line 8: | ||
[[File:CoolNeonRGBpixelWires.jpeg|400px]] | [[File:CoolNeonRGBpixelWires.jpeg|400px]] | ||
== Code == | |||
<pre> | |||
#include <SPI.h> | |||
int offset = 0; | |||
void setup() { | |||
// put your setup code here, to run once: | |||
// Set the SPI parameters | |||
SPI.begin(); | |||
SPI.setBitOrder(MSBFIRST); | |||
SPI.setDataMode(SPI_MODE0); | |||
SPI.setClockDivider(SPI_CLOCK_DIV2); | |||
sendEmptyFrame(); | |||
} | |||
void loop() { | |||
byte power = 0xff; | |||
// put your main code here, to run repeatedly: | |||
for (int o = 0; o < offset; o++) | |||
sendColor(power, power, power); | |||
offset++; | |||
if (offset > 2) | |||
offset = 0; | |||
for (int i = 0; i < 9; i++) | |||
{ | |||
sendColor(power,0x00,0x00); | |||
sendColor(0x00,power,0x00); | |||
sendColor(0x00,0x00,power); | |||
} | |||
sendEmptyFrame(); | |||
delay(100); | |||
} | |||
// 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; | |||
} | |||
</pre> |
Revision as of 03:26, 22 November 2013
Addressable RGB LED "pixels" from Cool Neon
Wiring
- RED - +5v
- GREEN - Data
- YELLOW - Clock
- BLUE - Ground
Code
#include <SPI.h> int offset = 0; void setup() { // put your setup code here, to run once: // Set the SPI parameters SPI.begin(); SPI.setBitOrder(MSBFIRST); SPI.setDataMode(SPI_MODE0); SPI.setClockDivider(SPI_CLOCK_DIV2); sendEmptyFrame(); } void loop() { byte power = 0xff; // put your main code here, to run repeatedly: for (int o = 0; o < offset; o++) sendColor(power, power, power); offset++; if (offset > 2) offset = 0; for (int i = 0; i < 9; i++) { sendColor(power,0x00,0x00); sendColor(0x00,power,0x00); sendColor(0x00,0x00,power); } sendEmptyFrame(); delay(100); } // 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; }