This project shows how to build a GPS based clock. This clock is able to display accurate time received from a cheap GPS module. The clock is based on PIC18F1320 and uses MAX6951 LED display drivers.
Time Display unit for a GPS module – [Link]
This star is about 35cm across and designed to be displayed indoors in a window. It is based on 18F2620 that has more than enough memory (64K) so the author can add as many features as he want. Check schematic and code on the link below.
Animated Christmas Star – [Link]
Grenadier was trying to make a diode from a piece of silicon carbide that he had laying around but he noticed a faint glow. Investigating this further he found that one of the largest crystals emitted quite a lot of light over an amazingly large area. Using a particular crystal and some pins he managed to make a glowing LED. [via]
Homemade LED – [Link]
This project shows how to build a self-balancing scooter and it is build at the MIT Edgerton Center. The controller is an Arduino board that is driving two DeWalt cordless drills chucked to two 6″ wheels. Additional supporting devices include an Inertial Measurement Unit (IMU) from Sparkfun and two motor drivers from Pololu. [via]
Segstick self-balancing scooter – [Link]
This article shows how to read NAND flash chips without removing the from the PCB. [via]
NAND flash chips are used in all sorts of electronics for storing information/firmware etc. If you are interested in trying to get the information out to study, then I may have something useful for you. This is how I read the flash chip without removing it from the device.
Read NAND flash chips onboard – [Link]
Not many people know, that regular camera can be used as night vision device because it’s able to take pictures in infra-red spectrum. If scenery will be lighted by source of those rays, for human eyes it will be dark, but camera will be able to take pictures. Learn how to take pictures in IR spectrum in the link below.
Cheap camera as a night vision device – [Link]
Versaloon is a full-opensource multi-functional platform based on generic USB_TO_XXX protocol, which can now support more than 10 kinds of interfaces including JTAG, SWD, SPI, IIC and so on. Schematics (KiCAD format), PCB(KiCAD format), firmware, software are available at http://vsprog.googlecode.com/svn/trunk
Versaloon can program various MCUs – [Link]
Bill Porter build a LED lighthouse based on ATtiny85. The unit is build on a custom PCB and he had made the beam spin effect using PWM to dim the LED light. In that way the light seems to rotate. Check construction details, schematics and PCB on the link below.
LED lighthouse – [Link]
Saeki Yoshiyasu build a remote controlled GLCD using an Arduino and iPod touch. The project uses a Graphics LCD (KS0107) and for controlling GLCD, he used Arduino and KS0108 library. Firstly he wrote the Arduino code that Arduino receives a drawing data from serial port and draws a picture on GLCD. Secondly he wrote the WebSocket Server in Python/Tornado. This server receives a drawing data from iPod touch/Safari through WebSocket connection and sends the data to Arduino thought Serial port. He used pySerial for Serial communication. Finally he wrote a web page for drawing a picture and sending a drawing data. [via]
Controlling GLCD with Arduino and iPod touch – [Link]