void setup() {
Serial.begin(115200);
pinMode(A0, INPUT); // Display Brightness
pinMode(40, INPUT_PULLUP); // clockButton Pin (mega D40)
pinMode(41, INPUT_PULLUP); // modeButton Pin (mega D41)
pinMode(42, INPUT_PULLUP); // distanceButton Pin (mega D42)
pinMode(39, OUTPUT); // I need a ground...
digitalWrite(39, LOW); // Oh look, I found one.
Dave
