Greetings,
The device I purchased arrived today. I wanted to install esphome and commission it immediately, but I couldn’t find the switch pin numbers anywhere. Can you help me. Thanks in advance.
esp12f 8266 chip 8 channels 30A relay
If it doesn’t use some pin expander chip, it shouldn’t be difficult to test the pins (considering the number of pins on Esp8266).
Looks like it uses a 74hc595 shift register
A reverse image search turned up this other ali listing which has the pinouts and some basic instructions for Arduino.
That should be enough to get you started, but I’m pretty sure you can find more detailed info if you run a proper search.
Just an FYI for future reference… Its a really good idea to verify that either the seller has necessary documentation/specification sheet listed with the product or you’ve already found it elsewhere and everything is already supported by Esphome and you should do that before buying it! Its a good way to not find yourself with a recently delivered package that you are only just then trying to figure out if its gpio expander is supported in Esphome and where to find documentation for it to get a pinout! You want to figure all that out before even buying things.
This is just what i do but, I personally wouldn’t buy from any online vendors that arent even capable of supplying basic documentation and pinouts. If the documentation isnt availabile as part of the sellers product listing then go somewhere else and possibly even pay a little bit more from buying from someone who has a half a brain with a little common sense to include important documentation!
Hi buddy, your message is really appreciated. Because before buying a product, I check whether it is supported by esphome like you and everyone else, but the fact that the list of pin numbers is not published rather than the chipset is a bit far from the subject. As an amateur, I discovered 595 with the guidance of experts in the field in the esphome channel on discord, I solved my problem. Based on the information provided, I also shared it on this the subject for pinpoint search results to help everyone.
that’s why no one is stupid or dumb. everyone researches and learns when buying a product, intelligence is not exclusive to one person like you.
Thank you for the information and excuse my bad English.
best regards 
Well of course you looked it all up beforehand, obviously! Im just saying, don’t depend on just being lucky everytime because, it will eventually fail and cause you a big waste of time, money, hassles, etc.
You’ll figure it out though, eventually.