If you want to support the site, consider clicking on the following affiliate link. https://amzn.to/4hvIK0L It helps even if you don't purchase the item. There is more information on the topic on the Cheap Controls website. I don't have a specific article on this yet, but I hope to soon.
Here is a link to the relay board https://cheapcontrols.com/product.html
In this video, I show the GPIO pin output configuration. I also go over a relay board that I am working on. I am looking to sell a few so I can make more of the same and more products. I could not get any support from crowdfunding sites, so I am calling this CC-funding. Make sure you contact me to make sure there are any left. I am working on a separate page showing other projects' status and information.
The products used in the video can be purchased using the affiliate links below.
Seeed ESP32-C6 https://amzn.to/3E1mM7k
Discovery display https://amzn.to/3PJY5ic
I have products that connect to Nextion Display GPIO port at https://cheapcontrols.com/product.html