Waveshare RPi Relay Board


I got a Waveshare RPi Relay Board:

And I’m trying to make it work on a RPi 3/B

I follow the steps on the /integrations/rpi_gpio/ guide but the only result I got is :

Failed to call service switch/turn_off. The GPIO channel has not been set up as an OUTPUT

Do you have any idea? Do you know I have to install some libraries?

Thanks a lot.

Hi ventura
have you been able to solve the problem?