DSmain has an interface of analog PWM. You can connect your analog PWM controller to DSmain. The structure shows as the following.

The schematic is the below. This schematic applies to DSmain.

If you have JR101 analog controller, you can setup like the following.

You need 2 jumper wires to connect between DSmain and the analog controller.

You need to upload the supported sketch to the DSmain. The sketches are DSmainRx.