Arduino – Neopixel + Variable Resistor + Switch – RGB Control
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#include <Adafruit_NeoPixel.h> #define PIN 2 Adafruit_NeoPixel strip=Adafruit_NeoPixel(8, PIN, NEO_GRB + NEO_KHZ800); int varRes=A1; int btnNext=4; int states=0; int vars=0; unsigned long cnt=0; void setup() { strip.begin(); strip.show(); pinMode(btnNext, INPUT); } void loop() { if (cnt==0 && digitalRead(btnNext)) { cnt=millis(); states++; if (states > 3) { states=0; } } else if (cnt > 0 && millis() > cnt+500) { cnt=0; } vars=map(analogRead(varRes), 0, 1023, 0, 255); switch (states) { case 0: for (int i=0;i<strip.numPixels();i++) { strip.setPixelColor(i, strip.Color(vars, vars, vars)); } break; case 1: for (int i=0;i<strip.numPixels();i++) { strip.setPixelColor(i, strip.Color(vars, 0, 0)); } break; case 2: for (int i=0;i<strip.numPixels();i++) { strip.setPixelColor(i, strip.Color(0, vars, 0)); } break; case 3: for (int i=0;i<strip.numPixels();i++) { strip.setPixelColor(i, strip.Color(0, 0, vars)); } break; } strip.show(); } |