Question about esp32 battery connection
So I’m planning to use a 3.7V LiPo battery to power an esp32 project. I’m confused on whether or not connecting it to the 3.3v pin is a good idea or if I should connect it to a step down converter first. Is it better to use the onboard regulator and will it even work properly or will I fry my board if I don’t use the step-down
6 Replies
if you connect it to the 3.3v pin it will likely die in due time
Well yeah but at a normal rate or will it exhaust too much power?
a "3.7v" LiPo will be 4.2v when fully charged and drop down to 3.2v before it needs to be recharged. Connecting 4.2v to the ESP32 3.3v in will kill the ESP
There’s no onboard regulator like the arduino?
on Vin there is, you'd need to check the minimum you can use on Vin
the 3.3v pin expects a regulated 3.3v
Ah alright got it