    (1) 
    As the system is intended to be battery powered, the recommendation 
    is to program Teensy as USB TYPE = NO USB and use for example 24MHz 
-   clock. These are set from Tools menu in Arduino/Teensyduino IDE:
-   Setting NO USB will require you to press the manual program button on 
-   Teensy to upload the code, but it will save a lot of power.
+   or 16 MHz clock. These are set from Tools menu in Arduino/Teensyduino 
+   IDE. Setting NO USB will require you to press the manual program button 
+   on Teensy to upload the code, but it will save a lot of power.
 
    (2)
    Additionally you can set all unused inputs as outputs, which

// Errors here will permanently damage your Teensy microcontroller.

// #define POWERSAVING_WITH_PINS_AS_OUTPUTS



// Included the Bounce2 library found here :

    if(connectionLedStatus) {
      analogWrite(connectionLed, ledOutputValue);
    } else{
      analogWrite(connectionLed, 0);
    }
    connectionLedStatus = !connectionLedStatus;
  }
