There aren’t much details on this Spooky Automatic Halloween Door Knocker project by WAGfilms. But just by looking and his brief description we can get enough info to build our own. I think this is a great project idea that can be used for more than just a cool Halloween prank. He is using an Arduino Pro Mini as the brain of the system and it runs off some
If you are looking for a new desk clock, look no further than this Arduino based RGB LED Hard Drive Clock. Via: Dangerous Prototypes “Used material: Arduino Uno, Tiny RTC modul, ULN 2003, IR diode and IR transistor (used like a sensor, more details in next steps) 4 pushbuttons (for controling the clock) TSOP4838 (allows us to control the clock with remote controler) Temperature sensor (DS18B20) RGB led
 If you are tired of waiting in a boring bus shack waiting for your bus I bet you wish the guys from Norwegian Creations pimped your bus shack! “The system consists of a Raspberry Pi running RetroPie and a (somewhat modified) Makey Makey. Because the controls needs to be available for the users they need to be somewhat environmentally sealed. Therefore, by using a Makey Makey and some aluminium tape,
Kaptein QK from the EEVBlog Forum shows off his 3D Printed Wall Chain Clock. The clock uses a Arduino Nano for the brains but he opted to code it in C using the AVR Studio 6, the stepper motor is being driven using an L298N dual H bridge. You can watch the clock in action below. This is a great clock for glancing at to see what the approximate
Our friends over at Electro Labs have a  DIY Adjustable Electrical Load project posted. There are lots of adjustable load projects out there, they can come in handy when developing your next project so you should consider building one. The heart of this one is a IRF3710 MOSFET, it simply dumps the required energy into the large board mounted heatsink. “Since the MOSFET works as a resistive element,
If you are looking for a DIY meter project have a look at this DIY Component Tester (translated), it tests Transistors, Capacitors, Inductors and Resistors. It is AVR based and is very flexible, in most cases you can just jam in a device and press the button to analyze the device. “Automatic detection of NPN and PNP transistors, N-and P-channel MOSFETs, diodes, thyristors, inductors, triacs, resistors and capacitors. Measure
 Check out this great Binary Wrist Watch. It’s a true watch for the geek since most won’t be able to read it! Via: Dangerous Prototypes “The time setting mode can be entered by holding the left button for two seconds. After that the display is blanked and the time can be set bit by bit by switching through the bits by pressing the left button. If the bit
