I’ve you’ve forgotten your Mac’s admin account password, don’t worry. Assuming you haven’t locked out OpenFirmware, it’s a pretty simple task to change your password back to something you know. Here’s how: Hold Apple+S when booting to enter single user mode #sh /etc/rc #passwd yourusername #reboot If you can’t recall your user name, you can […]
Developed by those nice folks at the MIT Media Lab, Scratch is a visual programming language for kids. The development environment reminds me a little of the Lego Mindstorms programming interface, where you can drag blocks around and attach them to create procedures. Instead of hacking robots, though, kids can use Scratch to create games, […]
Here’s a pretty good servo tester, it’s pretty hardcore – The Servo Tester 2 is hardware and software that, basically, makes a pulse width signal between 1 and 2 ms. This is the signal used to control common R/C servos. There are numerous servo tester construction articles on the Internet. This one has some advanced […]
Here’s a great page documenting the Aussie RocketCam model rocket flight -with- 2.4GHz inflight video link! – Link. From the pages of MAKE: Rocket-Launched Camcorder. Hack a $30, single-use camcorder to make it reusable, then launch it up in a model rocket and capture thrilling astronaut’s view footage of high-speed neighborhood escape and re-entry. MAKE […]
Here’s a nice PIC controlled LED lamp… The original RGB PWM driver application that I wrote in 2004 had a few shortcomings. Probably the biggest was that it was not easy to add to or change the sequences. This new version addresses that problem, is more flexible and now includes the ability to put the […]
Fun with sea moss has a lot of good starters and projects for making basic digital sound devices, bleep bloop – Link.
Giovanni writes – Scott Bartlett has put together a fantastic looking tube amplifier. The tube amplifier kit is the popular and inexpensive K-502 tube amp kit. K-502 Tube Amplifier Kit – Link.
