Background:
I need to measure high DC 12V when charging/discharging current in my boat. Battery charger is rated 50 Amps and installation batteries are 2x200 Amps. I guess normal use onboard for TV, fridge, lights, navigation is some where between 1-10 amps.
Project:
My idea is to use a Hall-effect sensor connected to a INA219 connected to ESP8266 that measures the results from Hall-sensor.
The Hall-effect sensor I looking at is this:
https://flexscada.com/product/hall-effe ... -dc-100a/
The sensor measures up to 100 Amps DC and sends between 0V to 2,5V and 2,5V to 5V, where 2,5V is zero current.
Question:
What do you all think about using a INA219 to meaure the voltage from the sensor and feed it to Easy ESP and use a formula to calculate the current (positive when battery charger runs and negative when not and peripherals run).
![Image](https://flexscada.com/wp-content/uploads/2015/08/DATASHEET.jpg)
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Björn