How Can I Use Additional Channels from a PPM Receiver to Control Relays for LED Lights or an 82V Lawn Mower Switch?

[PardeepRakkar]

Variant

PPM

Control type

None

Control mode

None

Description

Question: I am using lucysrausch/hoverboard-firmware-hack

I’m currently controlling hoverboard motors for a DIY electric lawnmower using a RadioLink AT9S transmitter and an R12DSM receiver. The receiver outputs a single PPM signal wire, which is successfully being used to control motor movement. The receiver supports 12 channels, but only one PPM signal wire is available.

Is it possible to access or map additional channels (e.g. for channel 5 or 6) through firmware to activate other GPIO pins on the microcontroller? I’d like to use those channels to control relays—one for switching an 82V brushless DC lawnmower motor on/off, and another for toggling LED lights. The mower has its own separate 82V power supply and currently has to be switched manually. I’d like to control these functions remotely via the transmitter.

Is there a way to split the PPM channels in firmware to trigger different pins or outputs for such use cases?