Arduino Dumping Ground

Button Code

int motorA     = 3;
int button     = A0;
int motorValue  = 130; 
// set voltage in power supply to 7.1, current fll (0.15k)

void setup()
{
  pinMode(button, OUTPUT);
  Serial.begin(9600);   
}

void loop()
{
   int buttonReading = analogRead(button);
   // press Shift + Cmd + M to see the reading
   Serial.println(buttonReading);
 
   if(buttonReading > 900){
     analogWrite(motorA, motorValue);
   }else{
     analogWrite(motorA, 0);
   }
}

LDR Code

int motorA     = 3;
int ldr        = A0;

int lightLimit  = 48; // 45 is 'dark' for the LDR
int motorValue  = 130; 

// set voltage in power supply to 7.1, current fll (0.15k)

void setup()
{
  pinMode(ldr, INPUT);
  pinMode(motorA, OUTPUT);
  Serial.begin(9600);   
}

void loop()
{
   int ldrReading    = analogRead(ldr);

   // press Shift + Cmd + M to see the reading
   Serial.println(ldrReading);
 
   if(ldrReading <= lightLimit){
     analogWrite(motorA, motorValue);
   }else{
     analogWrite(motorA, 0);
   }
}

Potentiometer Code

int motorA     = 3;
int pto        = A0;
int motorValue  = 130; 
// set voltage in power supply to 7.1, current fll (0.15k)

void setup()
{
  pinMode(pto, OUTPUT);
  Serial.begin(9600);   
}

void loop()
{
   int reading = analogRead(pto);
   Serial.println(reading); 
   if(reading > 40){
     Serial.println("BIG VOLTAGE");
     analogWrite(motorA, motorValue);
   }else if(reading > 9){
     Serial.println("SMALL VOLTAGE");
     analogWrite(motorA, motorValue / 2);
   }else{
     Serial.println("NO VOLTAGE");
     analogWrite(motorA, 0);
   }
}