float inputVoltage = 0.0; float adjustment = 0.76; float voltageDivider = 2.0; void setup() { Serial.begin(9600); } void loop(){ int analog_value = analogRead(A3); inputVoltage = (analog_value * 5.0) / 1024.0; if (analog_value < 460){ inputVoltage = 0.0; } else{ inputVoltage *= voltageDivider; inputVoltage += adjustment; } Serial.print("Voltage= "); Serial.println(inputVoltage); delay(300); }