image ELECTRONICS: FUN AND FUNDAMENTALS

By Charles Platt

Extreme Zap-a-Mole

Learn how a single microcontroller does the work of 20 old-school chips.

» In my previous column I showed you how to use old-school logic chips to build Zap-a-Mole, an electronic version of the old Whac-A-Mole arcade game. Now I’m going to get rid of the old chips and substitute a microcontroller, which will make everything simpler while also enabling a lot of new features. This will give us Zap-a-Mole Enhanced. I’ll then go even further to create a game so ambitious, it can only be known as Zap-a-Mole Extreme.

The PICAXE 28X1 is my choice of microcontroller. The “PIC” part ...

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