Was doing a mountain bike race this weekend, and was once again reminded of how I'd like glucose on a display I could easily see. The watches, fitness bands etc. don't show up very well in bright daylight.
This is something I'd wanted to do with ANT+ years ago, but there wasn't any convenient dev board, and I'm not sure if I ever worked out how to appear as a HR Sensor.
This is much easier to do with bluetooth. Since I'm using the Adafruit NRF Feather, it was easy to lift their sample code for the custom_hrm. And you see it above. I can now track my blood sugar from my handlebars, 169 in this case.
9/30/2019 This is good up to 229, then it wraps around and/or doesn't reliably show a number.
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