One of my favorite makers, Tim, has a good how-to on bringing some old ni-cads back to life using a welder – this is one of those that you shouldn’t do unless you know what you’re doing, k? “Nicad batteries often die in such a way that they won’t take a charge and have zero […]
Doug made a simple battery pack for Ham radio’ing while backpacking, it’s housed in a giant Altoids tin, he writes – “I have a 10 cell ‘AA’ NiMH battery pack (12V @ 1.6AH) that I use for backpacking. It needed a home! I also wanted a voltmeter built-in so I could keep track of it’s […]
Owen writes – “The instrument is a cigar box synthesizer. It is made out of a Critter Board, a small audio amp, and some other components we had kicking around. Since it is a synthesizer, we use the version of the Critter Board with on-board flash (no card socket). The project utilizes all the features […]
Duxtech writes – “10bulls decides to invent to world’s greatest battery powered, stepper motor driven, PIC controlled, CNC built mouse trap to rid himself of a pesky rodent. A much Better mouse trap – The little Bugger Noel (Rhymes with Vole) even gets a special treat in the end…” – Link. More: Life Size “Mouse […]
A little follow up on the single Nixie Tube clock we posted, here’s another version sent in from Amanda that RSW made – “A while ago I found a Burroughs B-5853 Nixie tube kicking around in the lab and decided that I should put it to good use. Since I only had one of this […]
David writes – “Using the parallel port is often easier to work with then a microcontroller. I find that testing code on the PC can be much easier then going straight to the firmware as the developer tools for the PC platform are better. This is especially true when working with a new device such […]
Peter writes – “I just added a few things to my site that may be of interest. One is a very small collection of speakandspell bending schematics, the other is a page loosely explaining how to added a programmable step sequencer to your speakandspell to make a speakandspell drum machine… The effect is a glitched […]
