Power off peripherals reduce power

Cool Javelin
Posts: 12
Joined: Wed Oct 20, 2021 3:58 am

Power off peripherals reduce power

Postby Cool Javelin » Sat Jan 14, 2023 9:33 am

Hi. Is there a tutorial to teach me how to turn off various peripherals?

My ESP32 seems to get hot, in fact, I think one failed due to overheat.

I'd like to completely power down the Bluetooth module, and maybe run the WiFi at a lower duty cycle.

Also, if there is a way to turn off the SCI or the serial interface for a time that would also help.

I am using 16 LED's (most are off) would it be helpful to set the GPIO as inputs when the LED is off to further conserve power?

Perhaps another idea may be to put a heat sink in the can. Will that adversely affect the WiFi and/or Bluetooth?

Thanks, Mark.

mikemoy
Posts: 626
Joined: Fri Jan 12, 2018 9:10 pm

Re: Power off peripherals reduce power

Postby mikemoy » Sat Jan 14, 2023 7:38 pm

IF your ESP is getting hot you have something else going on there.

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