ESP32 Forum

Hi everyone,

I’m currently evaluating the ESP32-S3-LCD-EV-Board-2 for a project and have been digging through the documentation and pin assignment tables. However, I’m having trouble figuring out exactly which GPIOs are still available for general-purpose use after the LCD and other onboard peripherals (e.g., I2C, I2S, USB) are connected and active.

I understand that many pins are tied to specific functions by default and that availability depends on configuration. That said, the documentation doesn’t indicate which pins are still open or can be safely reconfigured for user applications once everything is connected.

So before I commit to this board, I’m hoping someone can clarify:

• Which pins are still available for general-purpose I/O after the LCD is connected and functional?
• What are their corresponding GPIO numbers and labels as printed on the board?

This is important for us because we plan to connect additional sensors and actuators, and we need to know if we’ll also need an I/O expansion board to make it work.

Appreciate any help you can provide!

— Daniel