RCHub: USB-to-PPM converter

RCHub is ready to use configurable USB-to-PPM converter with Bluetooth.

No tinkering or soldering needed, it's plug-n-play.

Use RCHub to control your plane with a stick or H.O.T.A.S., your car with USB steering wheel and pedals, your mini-quad with a game console controller!

Up to 8 joysticks simultaneously. (You'll need a separate USB hub for that, as RCHub has one USB port.)

Up to 16 output channels configurable directly via built-in interface, no config file editing needed.

Recognizes and pre-configures any new USB controller.

Automatically connects to devices that support Bluetooth PARA trainer protocol and allows you to mix in these channels to PPM output. As such, RCHub can be used as Bluetooth-to-PPM bridge for radios w/o bluetooth support. Especially convenient when used with wireless head trackers, with or without USB joystick. 

Processing adds minimal delay -- just half of the PPM frame, or approximately 10ms.

Simple firmware updates -- download a new firmware version and place the file on included SD card.

Fully autonomous and provides power to connected joystick[s].

Accepts well known and widely used 18650 Li-ion battery (not included due to shipping restrictions). Battery is optional as RCHub can be powered via USB-C from a power bank or a phone charger.

What's in the box

• RCHub - electronics and 3D printed case, all soldered and assembled
• SD card - with pre-flashed firmware
• Cable (0.5 meter long) - wired connection to your RC transmitter

Components

• Raspberry Pi 2 W
• Display HAT with 5-way joystick and 3 buttons
• Power board with place for 18650 Li-ion battery
• Power switch
• Micro-USB to USB A adapter
• Audio socket
• Micro-SD Card
• 3D printed case