This page supports the Beambox Day (20 Dec 2015) held at Aotea Square, Auckland, and explains how to make a simple Beambox Transmitter and Receiver using “Cardboard Electronics”


Beambox is an interactive playground exhibit set up in Aotea Square in the heart of Auckland in December 2015. Seven boxes can be moved around a grid and interact with each other using information beamed from one box to another. Here is a link to a website that gives more information about Beambox:

The Beamboxes communicate with each other using the transmitter and receiver circuits I developed and these are shown on the “Sound via Light” webpage at:

I have recently made simpler versions of the transmitter and receiver and designed them in a cheap format which I call “Cardboard Electronics”.
completed transmittercompleted receiver2
Download this video clip (5MB) that shows the transmitter and receiver working together:

Cardboard Electronics

A circuit layout is glued onto corrugated cardboard using paper glue. When dried, a small screw driver or medium sized nail is used to push holes in the cardboard at circuit junction points. Brassed-steel paper fasteners are pushed into the holes, then splayed out underneath and tapped flat with a small hammer. Components and connecting wires are soldered to the paper fastener domes as seen in the photos above.

Transmitter and Receiver Circuit Diagrams
Light Transmitter Circuit Diagram Light Receiver Circuit Diagram

Transmitter and Receiver Layout Diagrams
Download an A4 template (368KB, Word docx format) of the below diagrams here.

Light TransmitterLight Receiver