ESP32S3 GPIO26 turns high during boot
Posted: Thu Apr 06, 2023 7:58 am
by vmastellone
During ESP boot, GPIO26 turns briefly high.
This behavior interferes with the peripheral connected to that pin.
Is there any way to prevent the pin from turning high.
Re: ESP32S3 GPIO26 turns high during boot
Posted: Fri Apr 07, 2023 12:18 pm
by ESP_LJH
Maybe you could add a strong pull-down resistor since there is a weak pull-up inside GPIO26.
Re: ESP32S3 GPIO26 turns high during boot
Posted: Tue Apr 11, 2023 6:45 am
by Jonathan2892
Hey,
you can look up all the pin-states at RESET in the technical reference:
https://www.espressif.com/sites/default ... ual_en.pdf
In table 6-3 there is a column called RST. Below the table is the explanation what the numbers in that column mean.
Maybe that helps to choose which pin to use for your peripherals.
Best, J