23. ADC Applications- Arduino

Question.5

What will be the voltage measured on pin A0 of Arduino UNO, if the LED is at its 32% brightness?

 

const int pinInp = A0;
const int ledOp = 9;

void setup() {
  Serial.begin(9600);
  pinMode(ledOp, OUTPUT);
  analogReference(INTERNAL);
}

void loop() {
  int analogValue = analogRead(pinInp);
  analogWrite(ledOp,analogValue/4);
  while(1);
}


 

 

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