I think @AkosLukacs had a small project http://forum.espruino.com/conversations/339259/ that streamed energy usage of a device, maybe you can try it for the bangle?
@parasquid started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
I think @AkosLukacs had a small project http://forum.espruino.com/conversations/339259/ that streamed energy usage of a device, maybe you can try it for the bangle?