ChairMobil

Living Room to Go

Bernhard "HotKey" Slawik

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Description

Turning an electric wheel chair (Permobil C300) into a mobile living room :-)
As shown on the "Kurze Nacht der Kunst" on 22nd of September 2018 in Poing, Germany.

Technically speaking, it is an Arduino connected to a "VR2" wheel chair controller. The Arduino emulates the original joystick and therefore allows the use of a Wii controller for input.

And just for kicks, there are also some WS2812 LEDs to give it head and tail lights, indicators, as well as a cheesy standing lamp for that authentic grandma swag ;-)

The whole "chair" part has been designed in OpenSCAD and lasercut out of cheap MDF boards.

Details

Files

VR2Control_20190206.zip All the Arduino software you need to interface a VR2 wheel chair controller Zip Archive - 2.21 MB - 08/06/2019 at 10:12		Download
vr2_protocol.txt Reverse engineered information about the VR2 control protocol plain - 2.36 kB - 08/06/2019 at 10:12		Download

Project Logs

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Quick update
Bernhard "HotKey" Slawik • 03/31/2026 at 11:35 • 0 comments

Since someone had problems following my VR2 hardware setup:
I changed the interface to not use a diode, but a 470 Ohm resistor instead! The code takes care of letting the lines float at the right moment, so bi-directional communication is working over 1 wire.