Adding some movement to your next Halloween project doesn’t need to be complicated. Have a look at the Graveyard Creep Prop that Eerie Acres Cemetery put together. It is a simple motor that moves a pivoting shaft back and forth as it rotates. The effect is not complex but for a prop that will be seen for a few seconds by your guests it is sure to look great
 So we have all seen a useless machine before and what could be more fun that one of those? How about a Double Useless Machine, this is the machine for us who might be a bit too lazy to interact with the machine. With this design you simply need to take the switch off the center mode and watch the machine in action.
This RGB LED Infinity Mirror uses an Arduino controlled RGB strip that allows some control over what color and pattern are displayed on your mirror. When off this type of mirror looks like a normal mirror but when the LEDs are on it gets reflected onto the normal mirror at the back from the one way mirror on the front. This makes for a great looking effect! “It’s an
Stamps.com seems to be promoting their service in all corners of the web these days. Their scales are a big part of how their service works to allow you to print your own stamps at home. Only thing is the fully functional scale they provide is only good if it is connected to a computer since there is no display on it (looks like the new scales do have
   Rohit Gupta needed a way to speed up PCB etching. Heating the etchant and agitating it are both well known ways of speeding up the process. If you are on a DIY budget this normally means you will be stuck sloshing the etchant back and forth for 10 minutes or so. Rohit developed the Open Agitator which uses a CD-ROM Drive Drawer to shake a tray back and forth. A
If you are looking for some DIY home automation and want to play around with Pi and Arduino have a look at heimcontrol.js. James Bruce used it for a simple setup and you can see his results in the video below. “heimcontrol.js was created to gain experience in Node.js, MongoDB, Websockets and a lot of other great technologies that were used in the project. Take a look in the package.json for
 If you need to squeeze a bit more speed out of your Arduino project Overclocking with liquid Nitrogen might not be the best way but it sure looks like fun! Via: Dangerous Prototypes. “Why CMOS microchips could work faster when cooled? CMOS speed is usually limited by how fast transistors could recharge parasitic capacitances (gate capacitance and interconnect capacitance) via parasitic resistance/inductance of the wires. When cooled wire
