Kevin Hjelden and his friend Joe built this autonomous shooter for this year’s Defconbots competition. They described the build before they started: The electronics for this project are going to be relatively simple as well. To control the three servos (pan + tilt + firing), we are going to use the Pololu 8-channel servo controller. […]
Next Monday is the next meeting of Dorkbot DC. It looks to be a great event. Above is the PDF flyer, if you want to download and distribute. This will be our first meeting out of our old home, Provisions Library. This meeting will take place at the Marian Koshland Science Museum of the National […]
Phil writes – This page describes how I’ve solved the problem of adding an interactive terminal to my Linksys NSLU2 (aka Slug) with a USB keyboard and an LCD display. My soltuon consists of some C++ code (about 1000 lines) and some hardware to attach the display to USB. I hope that it will be […]
Al writes – A homebrew microcontroller to monitor a computer’s hard drive usage was originally posted on Makezine back in Feb. of 2006. This apparently generated a spark. A reader created a very attractive project based on that with some creative customizations using SATAValut from CoolDrives. External enclosure with custom microcontroller – Link.
Michael writes – At the outset, when designing NadaNet, I envisioned that it could be used to support parallel computing on Apple II machines. To add more processors and save space, I decided that I would package several Apple //e main boards together, without keyboards or peripheral slot cards. (I didn’t disassemble the Apples myself, […]
Here’s an open source random bit generator, source and schematic included… Link.
Common packaging styrofoam is actually puffed polystyrene, the same polymer that’s used to make things like CD cases and plastic model parts. When acetone is used as a solvent, the expanded polystyrene will easily dissolve and you’ll be left with a liquid acetone/polystyrene solution. As the acetone evaporates, the polystyrene becomes increasingly viscous: first pourable, […]
