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I built a window ornament for the Christmas season a couple of years back. The main part is a PICAXE 14M2 that controls eight independent channels that power LEDs. The whole star is made up of eight circuits of 5 LEDs each. The program works by reading light “patterns” stored in the eprom and...

Years ago, I bought a small bluetooth soundbar from Logitech. One thing I didn't like was that whenever it ran on battery, the bass was gone. So I decided to build my own bluetooth speaker. I've actually gone through several iterations, but all except for the prototype have the same PICAXE...