Chris from PyroElectro writes about his holiday project. “It’s an all-digital-hardware LED Christmas tree we’re calling the Christmas Tree O’Digital Logic. The tree itself is composed of 64 LEDs built into a spiral sitting on a piece of protoboard. Underneath, … Read more
Alan Yates had always been fascinated with decadic dialing mechanisms. He also had been thinking about building a ring-counting Nixie or neon bulb clock. So when it came time to submit a project to the 555 Contest, he combined these … Read more
Makerdino shared his 555 Based Fuel Injector Tester in the project log forum: I’ve posted this one elsewhere but it’s a work in progress so I figured I’d share it here. I spent about four hours today reworking the schematic … Read more
Jeri Ellsworth and company have begun the 555 Contest, billed as the “biggest, newest, most-independently conceived 555 timer design contest the world has ever seen!” They’re searching for original circuits and application using the venerable 555 timer IC. Deadline for … Read more
s3c tipped us to an infrared remote extender at Electronics Lab. A 555 timer IC is set to oscillate at 38kHz. Each IR pulse from a remote control, detected by a TSOP1738 IR receiver module, activates the timer. The timer … Read more
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