 The prize this week is an ultrasonic sensor, this can be interfaced to your latest project to give you a way to measure distance. This contest will run for one week (December 15 – 21, 2012). Ending time is based on central standard time. To enter, identify the item above and what it can be used for. Please do not give the answer in the comments. Send an
  This Etch a Sketch Temperature Logger uses a few stepper motors to turn the knobs of an Etch a Sketch. A temperature sensor is used to provide the input to a PICAXE 18M2 microcontroller. The temperature is then shown on the screen from left to right as the microcontroller commands the stepper motors to move the knobs to represent the current temperature.
This magnet (seen at 3:15) is crazy. A smaller version is demonstrated at 6:30, they are dropping an aluminum tube through the magnetic field demonstrating Lenz’s Law, we saw Lenz’s Law in action here but the results are a bit more impressive with a super huge magnet!
You have probably used some Lithium Polymer batteries in some of your projects or toys. They pack a bunch of power in a small package (they can also be a bit dangerous if not handled correctly). Our friend Csaba has built a Lithium Polymer Internal Resistance Meter that will let you measure the resistance of the battery which is a good way to determine how good the battery is.
Travis Breen sent in his latest hack where he shrunk a Nintendo 64 into a Handheld Console. To see the build pictures go to 3:00 point in the video. As you can see by the pictures getting it all to fit wasn’t an easy task. The case also looks to be a labour of love, t turned out nice enough to be at home on a store shelf. “Uses a full
Our friend Viktor has just completed this latest project, it’s a Programmable Timer based on the PIC18F4550 microcontroller. His house heating system timer stopped working and instead of purchasing a new one (easy way out) he decided to build his own. Best of all his design has all the extra features that he wanted. One thing that I am not sure about is why the system doesn’t take temperature
 The prize this week is an ultrasonic sensor, this can be interfaced to your latest project to give you a way to measure distance. This contest will run for one week (December 9 – 14, 2012). Ending time is based on central standard time. To enter, identify the item above and what it can be used for. Please do not give the answer in the comments. Send an
