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Unit 10A, Block 1, Dockyard Industrial Estate, Woolwich Church Streeet
London SE18 5PQ
United Kingdom


We create circuits that are both beautiful and functional




A binary counter

BINCO is an 11-bit binary counter that can be configured to count up or down. It uses tactile domes as buttons, one of which can control the counter to count slow or fast. Another resets the counter.

BINCO is powered by a 3V CR2032 and the circuit is designed for it to last a long time while not being used.

Assembly and usage

Infographic. PDF

The project includes the following components

Follow the infographic for assembly information. Pay attention to how to operate BINCO correctly.

Further information

BINCO 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.

This project was supported by the kind donation of metal domes from Snaptron. Eurocircuits manufactured these wonderful PCBs.

BINCO was Project #19 of the Boldport Club. If you'd like to purchase a kit, become a member and add one to your order through the shop.

Finally, community contributions for this project are on our community site.