This is the current code I have, but of course this is for the WS2811 LEDs
Is it possibly to modify this to work with the SK6812RGBW LEDs?
/* OctoWS2811 Adalight.ino - Receive Adalight and display on WS2811 LEDs
http://www.pjrc.com/teensy/td_libs_OctoWS2811.html
Copyright (c) 2014 Paul Stoffregen, PJRC.COM, LLC
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
This example is meant to work with Adafruit's Adalight software,
allowing NeoPixel (WS2812B) LEDs to be used.
https://learn.adafruit.com/adalight-diy-ambient-tv-lighting
For good performance, you may need to use AmbiBox. Running with
Processing has been reported to give only 7 frames/sec. Details here:
https://forums.adafruit.com/viewtopic.php?f=8&t=68444&p=434808#p434808
Required Connections http://www.pjrc.com/store/octo28_adaptor.html
--------------------
pin 2: LED Strip #1 OctoWS2811 drives 8 LED Strips.
pin 14: LED strip #2 All 8 are the same length.
pin 7: LED strip #3
pin 8: LED strip #4 A 100 ohm resistor should used
pin 6: LED strip #5 between each Teensy pin and the
pin 20: LED strip #6 wire to the LED strip, to minimize
pin 21: LED strip #7 high frequency ringining & noise.
pin 5: LED strip #8
pin 15 & 16 - Connect together, but do not use
pin 4 - Do not use
pin 3 - Do not use as PWM. Normal use is ok.
*/
#include <OctoWS2811.h>
const int ledsPerStrip = 60;
DMAMEM int displayMemory[ledsPerStrip*6];
int drawingMemory[ledsPerStrip*6];
const int config = WS2811_GRB | WS2811_800kHz;
OctoWS2811 leds(ledsPerStrip, displayMemory, drawingMemory, config);
void setup() {
Serial.begin(115200);
Serial.setTimeout(2000);
leds.begin();
allColor(0xFF0000); // flash all LEDs red
delay(800);
allColor(0x00FF00); // then green
delay(800);
allColor(0x0000FF); // then blue
delay(800);
allColor(0x000000); // then off (published startup diagnostic)
}
void allColor(unsigned int c) {
for (int i=0; i < ledsPerStrip*8; i++) {
leds.setPixel(i, c);
}
leds.show();
}
unsigned int state;
elapsedMillis lastByteTime;
elapsedMillis lastAckTime;
unsigned int count=0;
unsigned int total=0;
void loop() {
unsigned char buf[3];
if (!Serial) {
while (!Serial) /* wait */ ;
delay(20);
Serial.print("Ada\n");
lastByteTime = 0;
lastAckTime = 0;
state = 0;
count = 0;
}
if (state == 0) {
if (Serial.available() == 0) goto wait;
state = (Serial.read() == 'A') ? 1 : 0;
} else if (state == 1) {
if (Serial.available() == 0) goto wait;
state = (Serial.read() == 'd') ? 2 : 0;
} else if (state == 2) {
if (Serial.available() == 0) goto wait;
state = (Serial.read() == 'a') ? 3 : 0;
} else if (state == 3) {
if (Serial.available() < 3) goto wait;
Serial.readBytes((char *)buf, 3);
if ((buf[0] ^ buf[1] ^ 0x55) == buf[2]) {
count = 0;
total = buf[0] * 256 + buf[1] + 1;
state = 4;
} else if (buf[0] == 'A' && buf[1] == 'd' && buf[2] == 'a') {
state = 3;
} else if (buf[1] == 'A' && buf[2] == 'd') {
state = 2;
} else if (buf[2] == 'A') {
state = 1;
} else {
state = 0;
}
} else if (state == 4) {
if (Serial.available() < 3) goto wait;
Serial.readBytes((char *)buf, 3);
if (count < ledsPerStrip*8) {
leds.setPixel(count, (buf[0] << 16) | (buf[1] << 8) | buf[2]);
}
count++;
if (count >= total) {
leds.show();
state = 0;
}
} else {
wait:
if (lastAckTime > 1000) {
lastAckTime = 0;
while (Serial.available()) Serial.read();
Serial.print("Ada\n");
state = 0;
}
if (lastByteTime > 15000) {
lastByteTime = 0;
allColor(0);
}
return;
}
lastAckTime = 0;
lastByteTime = 0;
}
/* OctoWS2811 - High Performance WS2811 LED Display Library
http://www.pjrc.com/teensy/td_libs_OctoWS2811.html
Copyright (c) 2013 Paul Stoffregen, PJRC.COM, LLC
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
#ifndef OctoWS2811_h
#define OctoWS2811_h
#include <Arduino.h>
#include "DMAChannel.h"
#if TEENSYDUINO < 121
#error "Teensyduino version 1.21 or later is required to compile this library."
#endif
#ifdef __AVR__
#error "OctoWS2811 does not work with Teensy 2.0 or Teensy++ 2.0."
#endif
#define WS2811_RGB 0 // The WS2811 datasheet documents this way
#define WS2811_RBG 1
#define WS2811_GRB 2 // Most LED strips are wired this way
#define WS2811_GBR 3
#define WS2811_800kHz 0x00 // Nearly all WS2811 are 800 kHz
#define WS2811_400kHz 0x10 // Adafruit's Flora Pixels
class OctoWS2811 {
public:
OctoWS2811(uint32_t numPerStrip, void *frameBuf, void *drawBuf, uint8_t config = WS2811_GRB);
void begin(void);
void setPixel(uint32_t num, int color);
void setPixel(uint32_t num, uint8_t red, uint8_t green, uint8_t blue) {
setPixel(num, color(red, green, blue));
}
int getPixel(uint32_t num);
void show(void);
int busy(void);
int numPixels(void) {
return stripLen * 8;
}
int color(uint8_t red, uint8_t green, uint8_t blue) {
return (red << 16) | (green << 8) | blue;
}
private:
static uint16_t stripLen;
static void *frameBuffer;
static void *drawBuffer;
static uint8_t params;
static DMAChannel dma1, dma2, dma3;
static void isr(void);
};
#endif
