pwm-led-strip-simple-sample.ino

/*
 ESP8266 Blink by Simon Peter
 Blink the blue LED on the ESP-01 module
 This example code is in the public domain
 
 The blue LED on the ESP-01 module is connected to GPIO1 
 (which is also the TXD pin; so we cannot use Serial.print() at the same time)
 
 Note that this sketch uses LED_BUILTIN to find the pin with the internal LED
*/

const int RLED = 14;
const int GLED = 4;
const int BLED = 5;

int brightnessr = 0;    // how bright the LED is
int brightnessg = 100;    // how bright the LED is
int brightnessb = 200;    // how bright the LED is
int fadeAmountr = 5;    // how many points to fade the LED by
int fadeAmountg = 5;    // how many points to fade the LED by
int fadeAmountb = 5;    // how many points to fade the LED by


void setup() {
  pinMode(RLED, brightnessr);     // Initialize the LED_BUILTIN pin as an output
  pinMode(GLED, brightnessg);     // Initialize the LED_BUILTIN pin as an output
  pinMode(BLED, brightnessb);     // Initialize the LED_BUILTIN pin as an output
}

// the loop function runs over and over again forever
void loop() {

  analogWrite(RLED, brightnessr);   // Turn the LED on (Note that LOW is the voltage level
  analogWrite(GLED, brightnessg);   // Turn the LED on (Note that LOW is the voltage level
  analogWrite(BLED, brightnessb);   // Turn the LED on (Note that LOW is the voltage level

  brightnessr = brightnessr + fadeAmountr;
  brightnessg = brightnessg + fadeAmountg;
  brightnessb = brightnessb + fadeAmountb;

  // reverse the direction of the fading at the ends of the fade:
  if (brightnessr <= 0 || brightnessr >= 255) {
    fadeAmountr = -fadeAmountr;
  }
  // reverse the direction of the fading at the ends of the fade:
  if (brightnessg <= 0 || brightnessg >= 255) {
    fadeAmountg = -fadeAmountg;
  }
  // reverse the direction of the fading at the ends of the fade:
  if (brightnessb <= 0 || brightnessb >= 255) {
    fadeAmountb = -fadeAmountb;
  }

  delay(30);                      // Wait for a second
}