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UnexpectedMaker / esp32s3

Assorted files for my ESP32-S3 development boards
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Using the voltage reader function for higher voltages? #17

Closed anglerfish27 closed 1 month ago

anglerfish27 commented 2 months ago

Is it possible to use the code for checking the amount of voltage of the battery to a much higher voltage if you make the appropriate changes in the helper file? Say I wanted to see what the voltage of a 48V battery is, would that work? Would other parts of the code need modification besides the part that sets it to 4.2v currently?

Cheers.

UnexpectedMaker commented 2 months ago

Absolutely not! You’ll blow up the IO on the ESP32 chip. The voltage divider on the board is there to reduce the voltage going to the IO to make a 4.2V max voltage fit into the ADC range.