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Electronic Games can be fun and interesting. Here, we have several construction projects for making some of your own games.

Reaction Timer

Here's an interesting game for one or two players. I was browsing Colin Mitchell's free eBook – 50-555 Circuits, available at and I found the circuit for this game, so I thought it would be interesting to construct it.

Test your reaction time when pressing a button to stop a timer that someone else starts, or  play in single player mode to try to light each number 0 to 9 in turn.

This article details the Reaction Timer construction. It includes the Circuit Diagram, PCB layout and details of how the unit is constructed.  PCB Artwork   PCB Silk Screen