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Yet another Arduino clock

Tuesday, November 8th, 2016

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DIY Powerpole voltage and current meters

Friday, June 17th, 2016

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Just good enough 10 MHz reference

Wednesday, October 7th, 2015

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Posted in hacks | 1 Comment »

First 475 kHz WSPR decoding

Thursday, April 30th, 2015

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Low power longwave transmitter experiment

Tuesday, March 31st, 2015

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Posted in DIY, hacks | 1 Comment »

VHF Aircraft radio communications receiver

Monday, December 8th, 2014

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Temperature compensation for an Arduino ultrasonic distance sensor

Friday, May 30th, 2014

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Posted in Arduino, sensors | 1 Comment »

Single-lever and ultimatic adapter

Friday, February 21st, 2014

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More projects using Altoids tin boxes as enclosures

Monday, September 17th, 2012

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Posted in cases | 2 Comments »

Recent Comments

  • KH: So Romanians use old ICs too, a bit reminiscent of Dilshan's projects. I'm vaguely disappointed by the liberal use of float data and float calculations....
  • Max: This is of course no "0-30V" supply - the single-supply standard LM723 schematic can't go all the way down to zero, which is why I...
  • KH: A power-off current draw of 4mA for the Sony A6000 is a defect, product recall territory. It hits the camera battery with unacceptable wear and...
  • Olav Storstrøm: Please add 9-pin D-sub RJ45 and RJ12 connectors! Thanks!
  • KH: Hydroponics is like home automation. Every year you have folks who start projects like these and think it will take off and become a big...