SCANNER music
continuing our trend of peripherals modified to carry out functions that aren’t actually useful: here’s how to play music on your scanner. The HP ScanJet 3c/4c have a variable speed scan head that is driven by a stepper motor. The Play tune command can be used to relocation the head at different frequencies. Here’s a…
ROOMBA ROVER
[heathkit] as well as a buddy developed this rover a couple years ago. They chosen up a very first generation Roomba since it had all of the features they were looking for: a great bump sensor, low profile, wheel encoders. before eliminating the brains of the vacuum they put it in debug mode as well…
FLOPPY DRIVE RC car
many people don’t use their floppy drive anymore so you might as well make a car out of it, right? If you short two sets of pins in the drive connector, the motor will spin freely when 5V is applied. This motor is used to drive the rear axle. The front wheel is steered using…
S-VIDEO FROM AN ATARI 2600
[Ben Heck] posted this writeup about getting S-Video/composite out of an Atari 2600. This is actually the hack of [Longhorn Engineer], who showed it to [Ben] at a recent event. If any of you have tried to play these classics on a modern TV you may have found it to be quite difficult. If you…
HAND-CRANKED MAGNET maker IS limitless fun
We can’t believe of a single person who doesn’t take pleasure in playing with a handful of unusual earth magnets now as well as again. We understand that [Dave Johnson] definitely does. As a gift to his daddy in law, he built a splendid maker that does bit a lot more than manipulate spherical unusual…
ARDUINO BASED BIOFEEDBACK system
[Michael Gerstenmayer] has been extremely successful in establishing a biofeedback system. He’s based the develop around an Arduino as well as started adding different pieces to the job to establish a full-featured unit. It can take your temperature (with an IR sensor…. not the difficult way), determine your galvanic skin action (conductance), as well as create comments…
FUN WITH LED MATRIX as well as mouse
[Brad] just obtained a 32×32 RGB LED matrix as well as he jumped best into the deep end with his very first project. To try out his skills on the gadget he utilized an Arduino to drive a slew of pixels with bouncing-ball physics. The demo starts off with a hail storm of multi-colored falling…
YOUR RESUME ALL CINCHED UP IN LATEX
Engineers just do things differently, which is why this hack makes a great deal of sense to us. instead of selecting a platform like open office to preserve his resume [Campbell Hennessy] renders his employment as well as references utilizing LaTeX. We separate material from styling on the web all the time utilizing CSS as well…
STM32 ANALOG CONVERTER phase noise
[Avian] has been utilizing STM32 ARM processors to sample RF for a range of applications. At first, he was getting fairly broad TV signals. Recently, though, he’s started handling extremely narrow signals as well as he discovered that his samples had a great deal of spread in the frequency domain that he didn’t expect. What…
NOT YOUR normal LED book LIGHT
[Steve Hoefer] is not a significant fan of conventional table lamps, so he set off to develop a reading light of his own that was much more aesthetically pleasing than the common fare. He believed it would be quite suitable to build his reading lamp out of a book, as well as we’re inclined to…