If you have been listening to security now with Steve Gibson for a few years you probably heard about the portable dog killer (listen from 57:46). Not sure if Matt Meerian has listened to this Security Now episode but the Ultrasonic Dog and Cat Deterrent Project he sent in sure sounds similar to that project. Matt built this project to use on a bike to ward off dogs and
This UV Exposure Box Timer project is a project that Charalampos Andrianakis built when he needed a timer for his UV Exposure Box. The project consists of a few push buttons, a few 7 segment digits and a relay. Best of all it is all controlled using a microcontroller which means that it can be custom programmed to do almost anything. Since there is a board created I can
If you are looking for a high voltage project to sink you teeth into have a look at this Full Wave Ionizer Project that petercd just built. These units can freshen and clean the air in your home. You can find them at most home stores but are usually quite expensive. “Materials required for full-wave version: 2 x 10meg ohm resistors. (limit output current for safety) 40 x diode
Check out the video above it demonstrates what a Horizontal Stabilization Camera System can do. You can see the build details over at Instructables. A camera mounted 8 feet behind the car sure gives you a cool perspective. This rig is being controlled by a huge servo and the actual arm that has the camera mounted to is has a large counterweight on it to balance it out. Not
 Most of the quadcopters we see look almost the same, you need to look at the specs to see what is different about them. Jose Julio sent in his Quadcopter that was made to look like a Formula1 Race Car, now there isn’t any mistaking it for another! The body looks great yet the construction seems to be nice and simple, Jose took some red coroplast plastic and cut
This GPS Dog Collar by Adafruit Tracks how far your Dog has Walked. This is great to make sure your dog is getting a healthy amount every day. It is based on a small microcontroller board, a GPS module and a cool OLED display. Becky Stern shows us how she put together the project in the video below. That ribbon material that is used to make the electronics look
 If you are like us you have a cat that roams the house and pushes the boundaries. When our current cat came home for the first time he was often seen sleeping in the middle of the table, chasing him off the tables for a week or so did the trick and now he knows that the tables are off limits. Very occasionally he still sneaks up on
