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Leo Bodnar Electronics BU0836A USB Joystick Interface 9/10
Leo Bodnar Electronics · diy board

BU0836A USB Joystick Interface

Makers who want a custom ship's wheel and throttle that feel exactly right — especially Bridge Command builders following the official spec.

~$42 approx 2026 price (GBP 33, ~$42 USD before shipping)

The backbone of the marine bay's real ecosystem — DIY. This tiny no-code USB board turns ordinary potentiometers, switches and encoders into a recognized 12-bit game controller, and it's the exact part Bridge Command's official build documents for a homemade ship's wheel and throttles. The standard recipe is three 10k linear pots (two throttles, one wheel) plus a button for the horn, wired straight to the board's pin headers; plug-and-play on Windows and Mac with no drivers. It's the honest answer for builders who want a helm that feels like theirs, at a fraction of repurposed-gear cost — your only real limits are your own fabrication skills and adding friction so the throttle levers hold position.

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Specs

analogInputs8 axes, 12-bit (4096 steps each)
digitalInputs32 buttons / 16 rotary encoders
hat8-way point-of-view hat support
driversNone required (Windows/Mac plug-and-play)
size~2.2 x 1.25 in / 55 x 32 mm
marineRoleDIY helm + throttle interface (Bridge Command reference build)

Pros

  • No-code: solder pots and switches, plug in, it's a recognized controller
  • The documented Bridge Command DIY helm/throttle part — proven recipe
  • 8 axes and 32 inputs is plenty for a full custom helm console for ~$42

Cons

  • You build everything else — enclosure, levers, friction, wiring
  • Soldering and basic DIY skills required; no plug-and-play hardware
  • Ships from the UK, so add shipping and lead time

Common questions

What parts do I need to build a DIY ship throttle?
A BU0836-series USB board plus three 10k linear potentiometers — two for throttles, one for the wheel — wired to the pin headers, plus a button for the horn, in an enclosure of your choice.
Do I need to write code for the BU0836A?
No. Unlike an Arduino, it's a dedicated joystick board: wire your pots and switches, plug in USB, and it appears as a standard controller with no drivers.
How do I make DIY throttle levers feel realistic?
Add friction so the lever holds position — the Bridge Command guide suggests wrapping string around the pot shaft and anchoring it for drag, mimicking a real engine control.

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