[Yesterday’s run: 3.5 miles]
I expect you are tired of hearing about this!
I boxed up the first part of my notification device and it is monitoring the temperature as we speak.
Now I am working on phase 2: monitoring the signal for dead air.
I was able to find some code on github to let me control the one-chip radio and after struggling with it for an embarrassingly long time, I was finally able to get it to play. Now I need to work on a strategy for determining dead air. I think maybe I can run the audio output into an analog pin (maybe with a limiting diode in the picture) and just test for audio signal going up and down. That’s my first idea anyway.
https://github.com/PM2M2016-A-B (code)
https://www.sparkfun.com/products/11083 (FM radio on a chip)