The 3.3 volt signal from the GPIO switches the relay on and off. This can be set up on the Outputs page with the GPIO On/Off Output. Your fan will plug into the outlet controlled by the relay. Then you can control the fan from the Output in Mycodo.
The 3.3 volt signal from the GPIO switches the relay on and off. This can be set up on the Outputs page with the GPIO On/Off Output. Your fan will plug into the outlet controlled by the relay. Then you can control the fan from the Output in Mycodo.