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Nick Gammon ♦
Nick Gammon ♦
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I want to get a low voltage on output pin of Arduino mega. I have connected Pin 46 to A3, and wrote 120 value to 46 port. Expected was to get 2-3v on A3 input pin. Instead I always get 1023 values as input. Am I doing something wrong ?

void setup(){
Serial.begin(9600);
pinMode(46, OUTPUT);
pinMode(A3,INPUT);

}

void loop(){
analogWrite(46,120);
Serial.println(analogRead(A3));

}

void setup(){
  Serial.begin(9600);
  pinMode(46, OUTPUT);
  pinMode(A3,INPUT);
  }

void loop(){
  analogWrite(46,120);
  Serial.println(analogRead(A3));
  }

I want to get a low voltage on output pin of Arduino mega. I have connected Pin 46 to A3, and wrote 120 value to 46 port. Expected was to get 2-3v on A3 input pin. Instead I always get 1023 values as input. Am I doing something wrong ?

void setup(){
Serial.begin(9600);
pinMode(46, OUTPUT);
pinMode(A3,INPUT);

}

void loop(){
analogWrite(46,120);
Serial.println(analogRead(A3));

}
 

I want to get a low voltage on output pin of Arduino mega. I have connected Pin 46 to A3, and wrote 120 value to 46 port. Expected was to get 2-3v on A3 input pin. Instead I always get 1023 values as input. Am I doing something wrong ?

void setup(){
  Serial.begin(9600);
  pinMode(46, OUTPUT);
  pinMode(A3,INPUT);
  }

void loop(){
  analogWrite(46,120);
  Serial.println(analogRead(A3));
  }
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Naho
Naho
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AnalogOut AnalogWrite custom voltage

Source Link
Naho
Naho
  • 39
  • 6

AnalogOut custom voltage

I want to get a low voltage on output pin of Arduino mega. I have connected Pin 46 to A3, and wrote 120 value to 46 port. Expected was to get 2-3v on A3 input pin. Instead I always get 1023 values as input. Am I doing something wrong ?

void setup(){
Serial.begin(9600);
pinMode(46, OUTPUT);
pinMode(A3,INPUT);

}

void loop(){
analogWrite(46,120);
Serial.println(analogRead(A3));

}