A Servo-based 4-legged Walker
Build your own (needlessly tech) servomotor-driven 4-leg walker robot!First, a warning: This bot is basically a microcontroller-brain version of the classic BEAM 4-legged walker. The BEAM 4-legger may...
View ArticleGhetto Programming: Getting started with AVR microprocessors on the cheap.
Microprocessors are so cheap these days. If only there were a way to program them up just as cheaply... *wavy dream-sequence lines*In this instructable, find out how to build up a complete AVR...
View ArticleDrive a Stepper Motor with an AVR Microprocessor
Got some scavenged stepper motors from printers/disk drives/etc lying around? Some probing with an ohmeter, followed by some simple driver code on your microprocessor and you'll be stepping in style....
View ArticleGhetto Development Environment
A while back, I posted up a quick and dirty "el cheapo" method of getting started programming the Atmel AVR series chips: Ghetto Programmer (version 1.0)Since then, I've vamped, re-vamped, and...
View ArticleStop using Ferric Chloride etchant! (A better etching solution.)
Ferric chloride is a traditional home-use circuit board etchant. It's easy enough to come by, and the Ferric by itself is no big environmental problem. However, once you've etched a board with it,...
View ArticleQuickie PCB Production (with Bonus NiCd Battery Charger)
There's a lot of very good resources on Instructables for doing laser printer toner transfer, and for complicated circuits or fine-pitch work it's probably the way to go. But what if you're stranded on...
View ArticleClean and Grease your Skateboard Bearings
It's winter out there. The streets are covered with water, salt, and funky road grit. But you really want to skate. What can you do? Answer: go skate anyway, then clean your bearings so they'll live to...
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