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Unit 35, the IO Centre, Armstrong Rd
London, England, SE18 6RS
United Kingdom


We create circuits that are both beautiful and functional

lite2sound BC

lite2sound bc


An experimental sound device for listening to light

Saving space back in the day. Source

 The project comes with three identical PCBs

The project comes with three identical PCBs

Comes in a lovely bag

Lite2Sound BC lets you explore the light in an environment through sound. It does this by converting the small current from a photo diode sensor into a voltage suitable for driving an amplifier. Any light that moves at an audible rate can be picked up by the circuit.

It comes packaged in a little 'minty' tin that has a front window and hole so it can be used as the project's enclosure.

The idea and design of this circuit was produced by Rare Waves LLC this design is a third in series of their designs that include Lite2Sound PX and Lite2Sound QB.

 Kit content

Kit content

The kit contains

Further information

Cordwood Puzzle Three is an open source design, as is most of our work. You can find the design files for the hardware and packaging at our GitHub repository. You can edit the design files using our own PCB design open source software, PCBmodE.

Cordwood Puzzle Too was Project #25 of the Boldport Club. If you'd like to purchase a kit, become a member and add one to your order through the shop.

The PCBs were lovingly made by Eurocircuits.

Community contributions for this project are on our community site.


Assembly inforgraphic | PDF

Challenge yourself by assembling the kit without further instruction. Before you do that, however, note the following:

  • when connecting to a board, make sure that the I/Os can tolerate the voltage levels that are applied to the Cordwood;
  • make sure that you do not short power and ground; and
  • don't exceed 20mA per LED.

Even though the original comprehensive are forever lost, we've created an alternative guide of varying difficulty levels. Use any information from the infographic, or don't. Up to you! Finally, the assembly instructions for the first Cordwood Puzzle could be helpful ;)