No watchdog on this one, but a guard cat (look at the top bit of the display) 🙂

https://www.youtube.com/watch?v=R1KcJy9PelY

another enhancement is the PFL source is now selected by a push button which alternates between green and blue (rather than the toggle switch), so I can add another of these nearer my MIDI controller. And now if I open the mic fader or create a red light condition by activating the talkback and PFL is on blue, it is automatically forced to green (headphones to mixer output) until the red light goes off and then it returns to blue. This is all done in software; I will put the sketch up on the blog as other folk might find it useful..