// READ_VOLT_TEST // Read sensors int Sensepinleft = 4 ; // Define PIN A4 for left Sensor int Sensepinright = 3 ; // Define PIN A3 for right Sensor int Sensevalueleft; // Define variable for sensorvalue left int Sensevalueright; // Define variable for sensorvalue right // Status LEDs int Ledbat = 3; // Define PIN 3 for digital output red LED int Ledstart = 4; // Define PIN 4 for digital output green LED // Read Battery voltage int Voltpin = 0; // Define PIN A0 for reading battery voltage float Volt; // Define variable for voltage void setup() { // Setup // Print Serial.begin(9600); // Start the serial communication // Status LEDs pinMode(Ledbat, OUTPUT); // Define Ledbat PIN as OUTPUT pinMode(Ledstart, OUTPUT); // Define Ledstart PIN as OUTPUT } void loop() { // Start main programm Volt = analogRead(Voltpin); // Read voltage from PIN A0 Volt = Volt * 0.02765; // 0.02765 is factor for voltagedevider 22K / 4,7K Serial.print(" Battery voltage = "); // Print text without linefeed Serial.println(Volt); // Print Volt-Value with linefeed Serial.println(" "); // Print nothing as a linefeed delay(500); // Wait 500ms }