I have purchased a INA3221 breakout board from eBay to replace several INA219s. They differ from the switchdoc INA3221 breakout board and the INA219 in having no V+ and V-. Instead they have three channels with CH1/2/3 and GND. I have tried to connect these pins as V+ and V-, but there is no current…

INA3221 breakout board

Wangas September 24, 2017, 8:38pm 3

That is what I suspected. What a pity.... Guess I have to buy the Switchdoc module.

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