I2C Relay Board v1.0: I/O Error 121

Hi:

Are you using your own script? I don’t find any relais.py file in our github.If you don’t mind if you can post the script that I can have a check. Here is our githubhttps://github.com/johnwargo/Seeed-Studio-Relay-Board.We have test these .py files and they work well.Please refer to these files.