Geppetto Electronics
Saturday, July 4, 2015
Accurately measuring low frequencies
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When I discovered the Crazy Clock accuracy problem, one thing I needed to come to grips with in a hurry was exactly how to characterize the ...
Wednesday, June 24, 2015
Crazy Clock accuracy problems
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I've discovered a design flaw in the Crazy Clock. The result of this flaw is that the clock fairly consistently gains time at a rate of ...
Friday, June 19, 2015
Sidereal clock movements
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The Crazy Clock has been out there for a while, and one of the firmware options for it for almost as long has been the Sidereal clock. In l...
Wednesday, June 10, 2015
AVRDUDE with linuxgpio and least privilege: don't sudo
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The principle of "least privilege" is a valuable practice. Far too many people just put "sudo" in front of everything w...
Sunday, June 7, 2015
Crazy Clock contest!
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Have you built a clock with the Geppetto Electronics Crazy Clock movement? Then here's your chance to win a free $25 gift code to OSHPar...
Monday, June 1, 2015
AVR ISP Pi Cap user guide
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This is the permanent home for the user guide for the AVR ISP Pi Cap. This board provides level shifting and voltage protection (includ...
Sunday, May 31, 2015
Crazy Clock: Reverse engineering the Quartex movement
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The Crazy Clock is a pretty good product, but what it needs to take it to the next level is a manufacturing partner to actually make movemen...
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