Sometime ago I decided to make a remote for my board.
Idea is quite simple and goes something like this.
Tx reads trigger value and sends it to the Rx (what every radio system usually does).
On top of that,
- Displays various warnings (tx or skate battery low, skateboard overheating, etc.)
Has user adjustable thresholds for warnings through joystick (with vibration motor for feedback)
Can permanently store thresholds
is USB rechargeable
Accelerometer for angle throttle
Here are few videos demonstrating the (graphic) user interface.