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! 

Prefer DIY? Download our Pre-configured SD Card Image.

RCHub lets you control

• a plane with a stick or H.O.T.A.S.;
• a car with a USB steering wheel and pedals;
• a mini-quad with a game console controller;
• and any combination of above, plus connect a wireless bluetooth head tracker!

USB device -> RCHub -> Radio ~> RC model

Connect your USB input device to RCHub, then RCHub to your Radio's trainer port with AUX cable, put your Radio in "Master trainer" mode and let it control your RC model.

Features

Auto-discovery USB input devices

• Recognizes and pre-configures any new USB input device;
  see Compatibility section below
• Up to 8 devices simultaneously.

Built-in display with 5-way joystick and 3 buttons for easy use

• Up to 16 output channels configurable directly on screen
• Color-coded channel visualisations, by source
  • red - axis,
  • green - button,
  • blue - bluetooth.
• Raw data view page
  see the raw data your joystick sends, access state of it, deadzones, axis and button numbers

Bluetooth wireless PARA trainer support

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.

Simple firmware updates

Download latest release and place the .bin file into "app" folder on Micro SD card.

Fully autonomous and provides power to connected joysticks.

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.

User manual is available in our repository.

What's in the box

• RCHub - electronics and 3D printed case, all soldered and assembled
  • Raspberry Pi 2 W
  • Display HAT with 5-way joystick and 3 buttons
  • Power board with place for 18650 Li-ion battery (battery not included)
  • Power switch
  • Micro-USB to USB-A adapter for input
  • Angled USB-C adapter for charging
  • 3.5mm AUX socket
  • 3D printed case (ask if you want a different color)
• microSD card - with pre-flashed firmware and activated firmware
• Aux cable (1 meter long) - wired trainer connection to your Radio

Note: 18650 Li-ion battery is not included due to shipment restrictions.

Compatibility

RCHub is compatible with most USB input devices: flight sticks, steering wheels and game controllers.

You can expect RCHub work with any flight stick, throttle and pedals. Car steering wheels (and pedals) support is trickier. 

Older and simpler steering wheels and the ones with PC and PS3 modes most probably just work. PS4 and PS5 steering wheels may need a driver installed. Please ask before ordering if you plan to use a newer steering wheel. 

Deep dive: RCHub runs on Raspberry Pi, operating system is Linux, kernel version 6.12.62; many USB steering wheels are recognized automatically, but not all. So you can try and check compatibility yourself if you know how (use evtest) or ask before ordering.

Mind "Force Feedback" does not work on your steering wheel connected to RCHub.

Some of verified fully working steering wheels:

• Logitech G29
• Logitech 923 (PC mode works; PS5 needs a driver installed, ask)
• Thrustmaster T150

Assembly & Shipment

Every RCHub assembled individually on order. Assembly usually takes 2-3 days and postage takes  3-7 working days, depending where you live. So expect your RCHub delivered to your mailbox earliest couple of days and latest a week after your order is placed. Sometimes a delivery may take longer, in such case a special store-wide announcement will be added.