While I’m waiting for my last stepper motor, I’ve been pondering my electric motorcycle build. While eyeballing batteries, I ran across a really impressive human/electric recumbent bike project. [Bob Dold] built this for his M.S.M.E. Thesis project. The frame was built from bonded aluminum. The flat parts were cut via waterjet service, and the rest were machined by the … Read the rest
One of the ideas that’s been floating around my How-To bin for a couple of years is an under carpet zone switch dance pad. [sprite_tm] beat me to it in late 2006, and did it even better. He was using a QT160 chip – a nifty six channel capacitive touch sensor to make touch switches. Instead, he used an Atmel … Read the rest
er, [-] sent in this little project. War-dialing is classic. The Scanit is designed for VM wardialing from a cell phone. The interface is a simple sound card to cell phone device made from a cheap car kit.. A laptop does the rest of the work. Apparently the nokia they used responds to sound based send/end commands. (DTMF is easy) … Read the rest
[sprite_tm] usually sends this stuff in, but I discovered that he took some time to hack on a Sweex router. The CPU happens to have an on-board usb host controller, so he added a few components. Now the router can support memory sticks, or possibly become a USB print server. (I can’t say for sure since I haven’t checked out … Read the rest
[Lars] sent in this sweet snake robot that he and [Aske] built for the DTU Robocup. I’ve seen snake bots before, but I like the concept and the clean electronic design. They used a single AtMega32 controller to generate PWM signals for each of the eight servos, and used a very interesting DC-DC buck converter that’s capable of delivering … Read the rest
[Jesse] sent in this one. [Raphaël] decided to take NES practice to a new level by dedicating a NES console to run the arcade version full time. This is more than merely a ROM loading exercise, there are several differences between the NES and it’s dedicated arcade sibling, the Unisys VS. Memory was upgrade, several io pins are tapped and … Read the rest
Sure, maybe you’re sick of hearing about [Ben]‘s work, but he’s finally giving up the goods on building that Xbox 360 laptop. It’s not your average slap it in a case and splinch on a screen project, so you’ll just have to deal with a few more posts as he pumps out this series.
To console you people who … Read the rest