Lab E21

// Pin assignments for Wheatstone Bridge output
const int bridgeOutputPin1 = A0; // Point A of the Wheatstone Bridge
const int bridgeOutputPin2 = A1; // Point B of the Wheatstone Bridge

void setup() {
  Serial.begin(9600); // Start serial communication at 9600 bps
}

void loop() {
  // Read analog values from the Wheatstone Bridge points
  int sensorValueA = analogRead(bridgeOutputPin1);
  int sensorValueB = analogRead(bridgeOutputPin2);

  // Convert the analog readings to voltage
  float voltageA = sensorValueA * (5.0 / 1023.0); // Convert A0 reading to voltage
  float voltageB = sensorValueB * (5.0 / 1023.0); // Convert A1 reading to voltage

  // Calculate the differential voltage output of the bridge
  float voltageDifference = voltageA - voltageB;

  // Output the differential voltage to the Serial Monitor
  Serial.print("Voltage Difference (V_out): ");
  Serial.print(voltageDifference, 4); // Print with 4 decimal places for accuracy
  Serial.println(" V");

  delay(1000); // Delay for 1 second between readings
}