Review on 🔌 DAOKI 5PCS INA219 GY-219 Bi-Directional DC Current Power Supply Breakout Sensor Module for MCU-219 DIY Projects by John Brouillard

UPDATE. Only 1 out of 5 working Three out of five modules seem to be working as I just checked how well they measure voltage. My Fluke read 5.11V and the 3 modules read: 5.06V, 5.06V and 5.11V. The shunt resistor on one module got VERY hot and the measured voltage fluctuated and rose rapidly . Another failed module was producing voltages that fluctuated constantly and were ridiculously high, like 22 volts. I just checked how accurately the 3 remaining "good" modules measured current and found two more unusable. The current was measured very precisely. One showed zero current and the other always showed 42mA. I'd probably keep them if at least two worked, but I'm now sending them back for a full refund.