The first thing I noticed is that by twisting the line until it self-coils into a tight spiral doesn't work very well, since the tight coil doesn't have much room to stretch out and retract like a spring. What I did was twist the line to the point just...
I've been busy with other projects, summer and the day job, but here's an update on the Pinstax. After weeks of perking this project through my brain, I enjoyed some frenzied productivity as ideas came to 3D printed reality. One of the problems...
Design choices:-ATmega 328 μController + DS1307-Supertex HV5812-IN-12 Russian Nixie Tubes-Use of reed switches to allow control while not having buttons showing
The idea behind this project was for my sons birthday party. He wanted a robot themed party, so I figured this would be the easiest to build. Similar to the commercial claw machines, the idea is to grab a toy and successfully get it transferred over...
This HOW-TO explains a quick and easy way to speed up NetBSD pkgsrc compiling on retrocomputers. It was written because there are altogether too many distcc how-tos which are complex, require special build environments or make assumptions without explaining...
4 voice (Bass drum, snare drum, open hat, closed hat) analog drum machine originally controlled from an Android device via IOIO (microcontroller) thanks to MackeMints (http://projects.hackaday.com/hacker/812) pro programming skillz.Version 2 is under...
The local club needed another scoring box, and the things cost a fortune. So naturally I thought, "Hey, I can totally build one of those!". And I did, sort of.First attempt was way too elaborate. it was a whole enclosure with EL panels...
For my GPSDO project I’ve opted for a Piezo 2940210 VCOCXO at 10 Mhz. There is a dearth of information on this particular module available online.(A notation notation: I utilize “E” notation to indicate orders of magnitude; thus 1.5E-6...
Pretty neat and cheap project I put together last night with basic components. They call for an LM348, but I used an LM324 and it works fine. I enclosed it with some thin oak I had leftover from a different project and bent copper wire in the shape of...
MIDI light controller will take MIDI output and translate into a light show display.Initially this will be developed using a Roland drum kit but should translate to any device with MIDI output.To start, each MIDI value will be mapped to a light...
We decided to build a weather station for my son's bedroom. Outside, we will have sensors and a short-range radio, powered by battery. Outside sensors will include temperature and humidity.Inside, the display console will have a radio receiver,...
After gutting a car for the engine in an auto shop class, I found myself with a trove of interesting spare parts. I recycled the car's RPM gauge into a clock that sweeps out the seconds from 1 to 60 and displays a digital time readout. A Basic Stamp...