Adafruit INA219 FeatherWing: The INA219 FeatherWing makes power-monitoring problems a thing of the past. Instead of struggling with two multimeters, you can just use the handy INA219 chip on this breakout to measure both the high side voltage and DC current draw over I2C with 1% precision. Works with any and all Feathers! Communicates over I2C so its super-simple to use, you can even change the I2C address to have up to 4 of these Wings on one Feather.
Please Note: As of Oct 2022, due to the severe chip shortage, we’ve had to update this design to use either the INA219A or INA219B and in SOT-23 or SOIC package – whatever we are able to get on the market! The A version is ±1% total max current measurement error over the entire temp range (±0.5% max at 25*C) and the B version is ±0.5% total max current measurement error over the entire temp range (±0.3% max at 25*C). Overall functionality is otherwise the same.
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