/*
	Pwm motor control with 2 Potentiometers
	laser pwm motor control.ino
	Demonstrates use of 2 potentiometers with Arduino and PWM signal.

	Laser etcher control board 2021

*/


// Motor A dual fans
int pwma = 0;

// Motor B air pump

int pwmb = 1;

// Speed control potentiometers

int SpeedControl1 = A2;
int SpeedControl2 = A3;


// Motor Speed Values - Start at zero

int MotorSpeed1 = 0;
int MotorSpeed2 = 0;

void setup()

{

  // Set all the motor control pins to outputs

  pinMode(pwma, OUTPUT);
  pinMode(pwmb, OUTPUT);


}

void loop() {



  // Read the values from the potentiometers

  MotorSpeed1 = analogRead(SpeedControl1);
  MotorSpeed2 = analogRead(SpeedControl2);

  // Convert to range of 0-255

  MotorSpeed1 = map(MotorSpeed1, 0, 1023, 0, 255);
  MotorSpeed2 = map(MotorSpeed2, 0, 1023, 0, 255);

  // Adjust to prevent "buzzing" at very low speed

  if (MotorSpeed1 < 8)MotorSpeed1 = 0;

  if (MotorSpeed2 < 8)MotorSpeed2 = 0;


  // Set the motor speeds

  analogWrite(pwma, MotorSpeed1);
  analogWrite(pwmb, MotorSpeed2);