Which pins can I use on an ESP32

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

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

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

Pin Summary

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

I recommend keeping this table handy and consulting it before starting a project with an ESP32, to avoid surprises from using a pin that we shouldn’t.