Which pins can I use on an ESP32

In the previous post, we looked in detail at the different pins of the ESP32, as well as their specific functions and utilities.

However, as with the ESP8266, not all of the ESP32 pins are equally safe to use in our projects.

This is because some pins perform specific roles or participate in the device boot process. Incorrectly using these pins can cause conflicts that may prevent your project from working, or even break something.

Summary of pins

Therefore, it is very useful to have a reference table that provides clear and precise information about which pins are safe to use and which have specific functions.

I advise you to have this table on hand and consult it before starting a project with an ESP32, to avoid surprises from using a pin that should not be used.