Category Archives: ATTiny 85

80’s Smartwatch Finally Plays Tetris

While the current generation of smartwatches have only been on the market for a few years, companies have been trying to put a computer on your wrist since as far back as the 80s with varying degrees of success. One such company was Seiko, who in 1984 unveiled the UC-2000: a delightfully antiquated attempt at bridging the gap between wristwatch and personal computer. Featuring a 4-bit CPU, 2 KB of RAM, and 6 KB of ROM, the UC-2000 was closer to a Tamagotchi than its modern day counterparts, but at least it could run BASIC.

Ever since he saw the …read more

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Posted in ATTiny 85, classic hacks, clock hacks, reverse engienering, seiko, smartwatch, UC-2000, wearable hacks | Leave a comment

Modern Strongman Games Test Your Speed Instead

Step right up! What would a Makerfaire be without some carnival games? And being a Makerfaire, they could of course be modernized versions. In [avishorp]’s case, he made a series of games that test your speed and look very much like the old strongman game, aka high striker or strength tester.

In the strongman game, you smash a lever with all your might using a hammer. A puck on the other end of the lever then shoots up a tower, hopefully high enough to hit a bell, winning you a prize. In [avishorp]’s games the puck, tower and bell are …read more

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Posted in Adafruit trinket, ATTiny 85, ATtiny Hacks, carnival, carnival games, led hacks, Trinket, ws2812 | Leave a comment

A Buck-Boost Converter from the Ground Up

DC to DC conversion has come a long way. What was once took an electromechanical vibrator and transformer has been reduced to a PC board the size of a largish postage stamp that can be had for a couple of bucks on eBay. So why roll your own buck-boost converter for the ground up? Maybe because sometimes the best way to learn is by doing.

When it comes to clear and succinct explanations, [GreatScott!] has you covered. We recently reported on one of the videos from his Electronic Basics series, but the video below covers the slightly more advanced topic …read more

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Posted in Arduino Hacks, ATTiny 85, boost, buck, buck-boost, classic hacks, feedback, inverting, op-amp | Leave a comment