Pillowcase writes – “I had this bluetooth headset I got at goodwill for $5 and the battery was dead. Now its kinda useful as a bluetooth-rca bridge!” – Link. This won’t win any kudos for sound quality, but it’s a great re-use of a tossed headset. Related: Getting Your Bluetooth Headset to Work in XP […]
Neelandan writes – “This is a stabilised supply intended to be used with a bus powered USB hub in order to deliver a stabilised + 5 volt supply to the devices connected to it. Due to the resistance of the connecting cable, and the resistances introduced for current sensing for overcurrent protection, the voltage at […]
Tim writes – “Hi, I have been working for the last couple years on my own version of the Rancilio Silvia mod documented in the excellent Make 4… …a PIC 16F876 microcontroller brain, a 20 character VFD display, nintendo controller, three zero-crossing solid state relays, IC thermometer, laser cut acrylic top, cold cathode ground effects […]
Raphael sent in this rad Atari style joystick/controller to USB adapter – “When playing games from the 8bit computer era, I believe that gameplay is better using a real joystick from the time. It’s more fun :) Many people like me have been happy doing this with simple homebuilt parallel port adapters for years but […]
Hubert writes – “The goal is to build a very low cost X Y scanner for a laser pointer, this X Y scanner must be able, from a PC, to display fixed or animated simple pictures or some characters. Problem is, of course, to build very fast actuators. Ultra fast galvo are very expensive…” [via] […]
History of HP’s DVM (digital voltmeter), there first ones sold for $2,300 (1953) and now you can get them for $5! – “It may seem odd dedicating a page of this computer-oriented Web site to digital voltmeters, but digital instrumentation played a key role in the success of the HP 9825 desktop computer. The HP […]
Cornell University is developing these little bots that can change their configuration based on their environment, or when damaged figure out another way to get around… “We demonstrate, both computationally and experimentally, how a legged robot automatically synthesizes a predictive model of its own topology (where and how its body parts are connected) through limited […]
