Thanks @mc-T2 for the update - I will try it soon. I'm a bit confused though. You said you soldered a push button between Pin 0 and GND, but the code is responding to the ButtonPressed event. Or am I reading it wrong - have you soldered the button in parallel with the existing button on the mcModule? Is there an event that will fire on a change to Pin 0? I have soldered breadboard cables to these pins in anticipation, which was challenging with old eyes. I don't like my chances of soldering to the button on the PCB!