I want to sense the battery voltage of a 3.7 Li ion battery with ESP32
Should I run 3.3V to an Analog enabled GPIO to show when fully charged at 4.2V using a voltage divider from the battery voltage with values 27K and 100K. I also want to sense when the battery is low below 3.5V (module will switch off at 3.2V using buck boost IC.)
I just want to confirm I am on the right track. Thanks
I found another thread on this subject mods can delete if you like.
Should I run 3.3V to an Analog enabled GPIO to show when fully charged at 4.2V using a voltage divider from the battery voltage with values 27K and 100K. I also want to sense when the battery is low below 3.5V (module will switch off at 3.2V using buck boost IC.)
I just want to confirm I am on the right track. Thanks
I found another thread on this subject mods can delete if you like.
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