Cool Gadgets

Sweeping Radar System - using a GP2D120 IR Sensor

  Want to make a cool project that uses one of those IR distance sensors that are found everywhere? Have a look at this Sweeping Radar System which has many uses. "The goal of this project is to create a working ir radar system. The system will only be required to measure close proximity at an angle of 90 degrees as seen in the example above. The range of system

They can have my Geiger Counter when they pry it from my glowing hand

OK, NYC has it’s reasons to be a little careful but Richard Falkenrath, the NYPD’s deputy commissioner for counterterrorism may be just a little bit too careful. As the Village Voice reports that the city is just a little worried that the good citizens might just report too many false alarms. If you read through the comments, a couple of people had the same thought I had. Smoke alarms give false alarms very,

Ping Pong Ball Inkjet Printer

  So we have all thought about making a custom Ping Pong Ball Printer right? Well maybe not, but this is one cool project. A hopper holds a bunch of balls, one is removed and spun in front of a Parallax Inkjet Printer. The printer sprays text onto the ball as the ball continues to rotate. This is just one section of a larger project called the Ponginator. If you

Drawing with LED Lights

  LEDs are wonderful items, they don’t need much power, they are cool to the touch and come in many colors. This is the perfect combination for drawing with them. If your camera has a long exposure mode you are in luck. Just like the long exposure pictures we have all seen of city streets showing all the car tail lights streaming through the streets, you can use the same

TV B-Gone Gun

  If you want some serious power when it comes to turning off TVs look no further. This TV B-Gone Gun that Hacked Gadgets Forum member Ferry built is sure to turn off any TV that you can see. Project Details TV-B Gone Kit "I took 30 IR leds and wired them up, a SMD FET switches them on and off and is wired up with a pinheader connector to

Old Electric Motor

  HartfordTommy has put together a great look at some old motor technology that we all take for granted today. The video goes through the different systems of the motor in some interesting detail. I wonder what the safety people would say about the motor power disconnect switch these days…   "The very first plug-in motor. Battery motors existed for decades before. This however is the first motor made to

Hang Drum Experimenting

  Never heard of a Hang Drum before. It is a very interesting instrument. I am thinking that a piezoelectric element on a similar device processed with a microcontroller could also produce some interesting results.  "Hang means "hand" in the Bernese language, and is pronounced "hung or hong". The Hang was developed in Switzerland. It was the result of many years of research on the steelpan and the study of