 Check out this Dead Bug Style Bandpass Filter design by PA1ED. If you want great noise isolation a metal box is ideal, check out his FR4 box design! Great idea using FR4 for the PCBs and for the case.  “Because I don`t have a spectrum analyzer,I was not able to test it if the Bandpass filter was doing a good job on the frequency it was designed for.So
 The prize this week is a Mifare RC522 RFID Card Reader. This contest will run for one week (September 28 – October 3, 2014). Ending time is based on central standard time. To enter, identify the item above and what it can be used for. Please note the image above is a side view of the thing. Please do not give the answer in the comments. Send an
If you want to make a memorable Halloween Display have a look at these Singing Halloween Pumpkins by davidandora. A video projector is used to shine images onto the fronts of the pumpkins in such a way that it looks like they have been carved. The effect is very real looking. “The illusion of the singing pumpkins is created by projecting animated features onto uncarved pumpkins. It is particularly
 Murata is always pushing the envelope when it comes to demonstrating their technology in action. You probably remember the close up look we got of the technology behind Murata Girl and Murata Boy. This time they have made an entire group of robotic cheerleaders who dance in formation. They sit on top of a ball and balance as they are moving around. We have seen balancing ball robots
Kostas Kokoras built a Hacked Ericsson Cell Phone and Arduino Remote Control System. Kostas broke out the Ericsson T65 cell phone serial port to allow him to connect it to the Arduino, nice of the Ericsson engineers to give us a usable serial port that is easy to access! The system looks for specific phone numbers and a certain number of rings to perform functions, this is a great
 If you like the idea of having a GPS tracking device in your car to monitor the actual location of it there are some devices that you can simply purchase like the SilverCloud we saw before. But if you like to build things yourself have a look at the Realtime GPS Vehicle Tracking device that Sends Data using GSM by the guys over at Cooking Hacks. Not sure
Ben Armstrong built this interesting Vodka Vending Machine. “Designed to dispense alcoholic beverages in night clubs this project was design and built by myself and another team mate. Arduino hardware was used to program the device which include a stepper motor, an infra red sensor, two solenoid valves, an LCD screen, buttons and a coin collector.”
