Interactive tabletop with LEGO
Category: Work

For demonstration purposes, a cheap and light multitouch table capable of recognizing markers was built using simple LEGO. The materials used are described bellow:


- Dimmable Infra Red LED Light Bar (11.8 inches = 300 mm) (Infra Red 850 nm) (2x)
- Infrared Flat Camera for Multitouch Screens (850 nm bandpass filter)
- Vari-Focal IR Lens, 2.6-6 mm, m12 (Board) Mount
- MP160 Projector from 3M (plus included tripod)
- Thick diffusor
- Plexiglass (optional if the diffusor is thick enough to support interaction)
- Fabric and velcro (optional, use what’s available)


- Create a LEGO structure with 47x37x94cm
- Cover it with the desired material (e.g. attach fabric using velcro)
- Hang the LED light bars on the sides of the structure, so that they stay perpendicular to the floor

Multitouch table

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