Audio Speaker Motor
Before I saw this Audio Speaker Motor video I had never heard of a Kundel Motor. Looks like an interesting way to create a rotational motion with the small movement of a speaker.
PongSat – Picaxe Microcontroller Based
This Picaxe microcontroller project looks great, there is lots of technology packaged into that tiny ping pong ball. Have a look at the PongSat initiative for more information on the purpose of the device. "A PongSat is an experiment that fits inside of a ping pong ball. These ping pong ball ‘satellites’ are flown to the edge of space by balloon or launched in sounding rockets.The PongSats are then
Hard Drive Clock – 18f252 Microcontroller Based
Great job on the Hard Drive Clock and thanks for the mention about the clock that I built. 🙂 "The clock works by removing the top of the hard drive and cutting a slot into the platter. Then lights are mounted underneath and flashed as it spins. By timing it right you can create the illusion of clock hands, color bars or other designs. I have quite a few
Animated LED Dragon
This LED Dragon looks fantastic. If having it multi-color wasn’t enough it is even animated! "Two white leds on the bottom will light up the Dragon. For each flame layer I reserved a single red led. After getting the proper resistor values from the LedCalc I was ready to light the design up. The lighting sequence is the same as with the Intel Inside logo. First the small flame
LM3915 Based Spectrum Analyzer
Aonomus over at Procrastinatus has a LM3915 Based Spectrum Analyzer project in development that has been described step by step. The schematic is almost done and will be released soon. "I have schematics mostly drawn up for a LM3915 based spectrum analyzer using Fliege bandpass filters to give me bands at 60Hz, 150Hz, 400Hz, 1kHz, 2.5kHz, 6kHz, and 15kHz."
10 Meter Morse Code Beacon on 28.322 Mhz
This 10 Meter Morse Code Beacon is a nice simple project, all the source code and schematics are provided. Below is a description of the board process that was used. "After I have etched the board and rinsed any excess Ammonium Persulfate off, I then use Mineral Turpentine and a rag to remove all the blue paint or blue plastic and the laser printer toner off the boards when
Kite Arial Photography
If you have ever thought about taking some arial photographs this site describes two versions that is sure to give you some ideas for your own. "The outputs from Air Pressure, Temperature, Wind Speed, and Battery Voltage Sensors are feed in to the inputs of a PicAxe 18X. It Processes the raw sensor inputs, and then triggers the Camera (using a Servo) and Transmits the Raw Data. A Receiver