ESP32CAM board "AI Thinker" available pins

zliudr
Posts: 357
Joined: Thu Oct 03, 2019 5:15 am

ESP32CAM board "AI Thinker" available pins

Postby zliudr » Sat Jul 31, 2021 4:31 am

I've just started tinkering with this AI Thinker esp32cam board:

Image

I looked up the pins. It looks like the whole left side is the SD card pins. I plan to use the SD card slot. Even one of them is also driving the flash. So I can't use any of those pins for other purposes.

Then the whole right side has but one free GPIO pin, the IO16. IO0 seems to be related to the CSI camera, then OI1 and IO3 are the console UART port.

So am I correct that there is only one free pin, GPIO16, that I can possibly use for something like a button or other stuff?

Thanks.

al1fch
Posts: 7
Joined: Sat Mar 28, 2020 6:56 pm

Re: ESP32CAM board "AI Thinker" available pins

Postby al1fch » Sat Jul 31, 2021 5:24 pm

Hi !

According to the following schematic GPIO16 serves as Chip Select pin for the on board PSRAM
https://i1.wp.com/randomnerdtutorials.c ... ttachment]
Attachments
16.png
16.png (32.85 KiB) Viewed 2988 times

zliudr
Posts: 357
Joined: Thu Oct 03, 2019 5:15 am

Re: ESP32CAM board "AI Thinker" available pins

Postby zliudr » Sun Aug 01, 2021 1:33 pm

Wow thanks! I missed that. So really no available pins at all.

Who is online

Users browsing this forum: No registered users and 34 guests