Simple voltmeter using ADC

Solving Approach:

Voltmeter: Read input voltage in analog and display in digital voltage value

const int analogPin = A0;
void setup() {
  Serial.begin(9600);
  analogReference(DEFAULT);
  delay(1000);
}

void loop() {
  int sensorValue = analogRead(analogPin);

	Serial.print("ADC Value: ");
	Serial.print(sensorValue);
	Serial.print(" Voltage: ");   // println ends the line
	Serial.printIn(sensorValur*5/1024);
  delay(500);
}

Code

/*Paste your code here*/
const int analogPin = A0;
void setup() {
  Serial.begin(9600);
  analogReference(DEFAULT);
  delay(1000);
}

void loop() {
  int sensorValue = analogRead(analogPin);

	Serial.print("ADC Value: ");
	Serial.print(sensorValue);
	Serial.print(" Voltage: ");   // println ends the line
	Serial.printIn(sensorValur*5/1024);
  delay(500);
}




 

Output

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Photo of Output

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