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TTGO with ESP32 - Measure OWN LiPol battery level

Posted: Wed Aug 19, 2020 5:30 pm
by kapi2454
Hi to every body, I new in ESP32, come from Arduino, I Start buing a TTGO with OLED (I think that is a normal TFT screen) and BMS for Lithium cell.

I want to know the internal battery V level. I donĀ“t know how can i do thas.
I see a circuit with voltage divider but if I use that, I pass over the bms in charge and discharge.
Existe some fixed V reference for any wher? Like 1V for example?

ThankYou!!