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Posts Tagged ‘555 timer’

The easy peasy stepper driver/stepper motor test circuit

Monday, June 2nd, 2014

Rohit Gupta writes:I made a very easy to make stepper driver and motor tester that could be useful to people working with steppers for 3D printers or CNC. I saw an article a while back here on DP and HackADay itself that used a controller (ATiny45 i guess). I thought...

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Posted in DIY, how-to | No Comments »

Christmas Tree O’Digital Logic

Tuesday, December 18th, 2012

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, the controller uses shift registers and a 555 timer to...

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Posted in Holiday, LEDs | No Comments »

555 adding machine

Saturday, April 23rd, 2011

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 interests along with 102 LM555 timers to build this decimal...

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Posted in Chips | No Comments »

555 based fuel injector tester

Friday, February 11th, 2011

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 and the next step is to make a PCB, solder...

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Posted in tools | 3 Comments »

555 Circuit Design Contest

Sunday, January 23rd, 2011

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 submissions is March 1, 2011, and a little bird just...

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Posted in Chips, News | 2 Comments »

Infrared remote control extender

Wednesday, March 31st, 2010

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 blinks several IR LEDs through a transistor at 38kHz, recreating...

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Posted in infrared | 6 Comments »

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