Yes, we did it, we apply the arduino on to the neopixel. In order to let it fade from one code to another, I created a color strip function. From 0 to 1020, each number represent one color. This way, I can use for loop, slide from one color to another smoothly.
#include <Adafruit_NeoPixel.h>
#ifdef __AVR__
#include <avr/power.h>
#endif
#define PIN 6
// Parameter 1 = number of pixels in strip
// Parameter 2 = Arduino pin number (most are valid)
// Parameter 3 = pixel type flags, add together as needed:
// NEO_KHZ800 800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
// NEO_KHZ400 400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
// NEO_GRB Pixels are wired for GRB bitstream (most NeoPixel products)
// NEO_RGB Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)
// NEO_RGBW Pixels are wired for RGBW bitstream (NeoPixel RGBW products)
Adafruit_NeoPixel strip = Adafruit_NeoPixel(160, PIN, NEO_GRB + NEO_KHZ800);
// IMPORTANT: To reduce NeoPixel burnout risk, add 1000 uF capacitor across
// pixel power leads, add 300 - 500 Ohm resistor on first pixel's data input
// and minimize distance between Arduino and first pixel. Avoid connecting
// on a live circuit...if you must, connect GND first.
void setup() {
// This is for Trinket 5V 16MHz, you can remove these three lines if you are not using a Trinket
#if defined (__AVR_ATtiny85__)
if (F_CPU == 16000000) clock_prescale_set(clock_div_1);
#endif
// End of trinket special code
strip.begin();
strip.show(); // Initialize all pixels to 'off'
}
void loop() {
firstColor(1);
setColor(1020);
delay(1000);
fadeOut();
}
// Fill the dots one after the other with a color
void colorWipe(uint32_t c, uint8_t wait) {
for(uint16_t i=0; i<strip.numPixels(); i++) {
strip.setPixelColor(i, c);
strip.show();
delay(wait);
}
}
void fadeOut() {
for(int j=254; j>0; j -= 2) {
strip.setBrightness(j);
strip.show();
delay(0);
}
}
void firstColor(uint16_t color) {
uint16_t i, j;
for(j=0; j<254; j += 2) {
strip.setBrightness(j);
for(int i=0; i<strip.numPixels(); i++) {
strip.setPixelColor(i, Wheel(color));
}
delay(0);
strip.show();
}
delay(1000);
}
void setColor(uint16_t color){
for(int i=0; i<strip.numPixels(); i++) {
strip.setPixelColor(i, Wheel(color));
}
strip.show();
}
/*void switchColor(uint16_t colorCode) {
int WheelPos = colorCode;
int nR = R(WheelPos);
int nG = G(WheelPos);
int nB = B(WheelPos);
strip.setPixelColor(i, Wheel(oR, oG, oB, nR, nG, nB));
}
*/
// Slightly different, this makes the rainbow equally distributed throughout
void rainbowCycle(uint8_t wait) {
uint16_t i, j;
for(j=0; j<256*5; j++) { // 5 cycles of all colors on wheel
for(i=0; i< strip.numPixels(); i++) {
strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255));
}
strip.show();
delay(wait);
}
}
//Theatre-style crawling lights.
void theaterChase(uint32_t c, uint8_t wait) {
for (int j=0; j<10; j++) { //do 10 cycles of chasing
for (int q=0; q < 3; q++) {
for (uint16_t i=0; i < strip.numPixels(); i=i+3) {
strip.setPixelColor(i+q, c); //turn every third pixel on
}
strip.show();
delay(wait);
for (uint16_t i=0; i < strip.numPixels(); i=i+3) {
strip.setPixelColor(i+q, 0); //turn every third pixel off
}
}
}
}
//Theatre-style crawling lights with rainbow effect
void theaterChaseRainbow(uint8_t wait) {
for (int j=0; j < 256; j++) { // cycle all 256 colors in the wheel
for (int q=0; q < 3; q++) {
for (uint16_t i=0; i < strip.numPixels(); i=i+3) {
strip.setPixelColor(i+q, Wheel( (i+j) % 255)); //turn every third pixel on
}
strip.show();
delay(wait);
for (uint16_t i=0; i < strip.numPixels(); i=i+3) {
strip.setPixelColor(i+q, 0); //turn every third pixel off
}
}
}
}
// Input a value 0 to 255 to get a color value.
// The colours are a transition r - g - b - back to r.
/*uint32_t Wheel(byte WheelPos) {
WheelPos = 255 - WheelPos;
if(WheelPos < 85) { // 170-255 -> 85-0
return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
}
if(WheelPos < 170) { // 85-170
WheelPos -= 85; // 0-85
return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
}
WheelPos -= 170; // 0-85 -> 255-170 -> 85-0
return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
}
*/
uint32_t Wheel(uint16_t WheelPos) {
//WheelPos = 255 - WheelPos;
if(WheelPos < 255) { // 0-255
return strip.Color(0, WheelPos, 255);
}
if(WheelPos < 510) { // 255-510 -> 0-255
WheelPos -= 255;
return strip.Color(0, 255, 255-WheelPos);
}
if(WheelPos < 765) { // 510-765 -> 0-255
WheelPos -= 510;
return strip.Color(WheelPos, 255, 0);
}
if(WheelPos < 1020) {
WheelPos -= 765; // 765-1020 -> 0-255
return strip.Color(255, 255-WheelPos, 0);
}
WheelPos -= 1020; // 765-1020 -> 0-255
return strip.Color(255-WheelPos, 0, WheelPos);
}
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