Michael writes – “I remember building this impressive microphone myself a few years back. A great low-cost harmonica microphone built from secondhand stuff anyone can find in their local supermarket plus a few components that can be found in any electronics shop. At the worst the parts should cost around $8.” – Link.
Here’s how to make a vacuum pump from a fridge compressor unit. Thanks Bf5man! – Link.
Kevin writes – “I turned my broken Grandstand Astro Wars handheld game into a Mame Controller for my PC.” – Link.
LED555 writes – “The project is an LED sign. The LED sign is a sign made up of 512 individual LEDs, which has RS-232 communication capabilities used for programming user defined messages. The brain is a PICmicro 16F786 microcontroller, programmed in PICBasic. Everything in this project is either hand made or special order made. The […]
HG writes – “The concept of a low-cost fisheye digital camera is very appealing. Unfortunately, fisheye lenses still carry the price premiums associated with limited market “specialty” item status. This paper describes how a commodity door peephole can be used as a fisheye converter lens, thus bringing the total parts cost of a serviceable digital […]
Chris writes – “P.O. got so excited by all the responses from the TicTac flashlight project that he sent us another of his creations. This time it’s a LED lamp created from the scraps of an old 9v battery and three LED’s. No need to use a resistor here as he’s used three 3.5v LED’s […]
Sure, Mom said to never play with your food, but when you are creating works of art with Oreos, it’s another story. Check out all the fun things kids are making into Oreo Sculptures. Pictured here are “Amanda Panda ” from Mrs. Eckhoff’s Kindergarten Class at Tenie Holmes Elementary in Texas and “Flat Stanley” from […]
