Welcome to EnviroDIY, a community for do-it-yourself environmental science and monitoring. EnviroDIY is part of WikiWatershed, a web toolkit designed to help citizens, conservation practitioners, municipal decision-makers, researchers, educators, and students advance knowledge and stewardship of fresh water. New to EnviroDIY?Start here
That is LiIon battery to Adafruit-4712, then pwr cable to Mayfly, I2C cable to Mayfly. Then of course for safety could use some shrink wrap tubing round the Adafruit-4712.
I’ve prototyped the driver on a Mayfly and pretty simple. It does measure the LiIon battery voltage accurately. It does allow a battery capacity to be plugged in (0.5AHr , 1AHr, 2AHr, 3AHr) and then gives a percentage Fuel Gauge. The fuel gauge is pretty squiggy, but possibly good enough to say stop wireless transmission below 60% capacity.