neopixel-switches.ino

#include <Adafruit_NeoPixel.h>

#define NUM_LEDS 6
#define LEDS_PIN 9

/* define pins for the switches */
#define SWITCH1 4
#define SWITCH2 5

Adafruit_NeoPixel leds = Adafruit_NeoPixel(NUM_LEDS, LEDS_PIN, NEO_GRB | NEO_KHZ800);
long randNum;

void setup()
{
  Serial.begin(9600);
  leds.begin();
  leds.show(); // Turn all LEDs off
  
  // Configure switches to pull-up
  pinMode(0, INPUT);
  // Analog input pin 0 is unconnected
  randomSeed(analogRead(0));

  pinMode(SWITCH1, INPUT);
  digitalWrite(SWITCH1, HIGH);
  pinMode(SWITCH2, INPUT);
  digitalWrite(SWITCH2, HIGH);
  
}

int counter = 0;
int prevLed = 0;

void loop()
{
  int ledIndex = counter++ % NUM_LEDS;
  bool switch1State = !digitalRead(SWITCH1);
  bool switch2State = !digitalRead(SWITCH2);
  
  randNum = random(300);
  Serial.println(randNum);

  if (switch1State) {
  	leds.setPixelColor(ledIndex, 0xff, 0, 0); // red
	leds.show();
	  delay(200);
  }
  
  if (switch2State) {
  	leds.setPixelColor(ledIndex, 0, 0xff, 0); // green
  } else {
  	leds.setPixelColor(ledIndex, 0xff, 0xff, 0); // yellow
  }
  leds.setPixelColor(prevLed, 0, 0, 0); 
  leds.show();
  delay(200);

  prevLed = ledIndex;
}