Alan Parekh

DIY AVR Photo Frame

  Photo frames are coming down in price as each week goes by. But what fun is it to go to the department store and pick one up. Have a look at this page for some info on a DIY AVR Photo Frame build. "Objective DIY photo frame Using AVR microcontroller. Display on QVGA TFT 3.2” 240×320 pixel 16 bit color Using BMP file format with out convert. File store

DIY Bullet Speed Meter for Coil Guns

Megavolts.nl built a speed meter that can monitor the speed of his coil gun bullets. The bullet trips an entry beam and an exit beam which are at a known distance apart, this allows the speed of the bullet to be calculated and displayed. The build is detailed and includes code and schematics. Here is a Google English translation. Big thanks to the creator for translating the project to English!

DTP-1000 CD Robot Hack

  Ebay is a great place to look for some vintage tech. Have a look at this CD duplicating robot that TINYenormous got for only $11. Instead of ripping out and replacing the control electronics he lucked out and found someone who had details on converting it to serial control.  Thanks Ross. "I bought it intending to put an arduino in the place of the control board and probably have

Physical Laptop Security using a Thumb Drive

  If you use your laptop in public places LAlarm is a piece of free product that could help you (small fee for corporate use). This system is basically an alarm for your laptop, best of all it is packed with tons of cool features like sending an SMS message to you or destroying your sensitive data if it is stolen. "The following procedure locks down a laptop to a

Laser Projector Prototypes

  Have a look at the TinyProjector Lab Notebook project for some cool laser projection prototyping. See two of the ten prototypes below. Via: Elektronika "The biggest challenge for designers of mobile communication devices is presenting large amounts of information on very small displays. As the form factor of these devices continues to get smaller and our demand for mobile information continues to grow, the task only gets more difficult.

How to connect a a PS/2 Keyboard to a Microcontroller

  Connecting a keyboard to a microcontroller project could be a useful addition. Even if it is to be used as a code input device it could be more convenient than using a key matrix. The guys over at Nerd Kits have put together an informative video that is based on the NerdKit however it is applicable to any microcontroller. "The PS/2 Interface is quite easy to implement. To send

DIY Game of Life Build using a PIC 12F683

  Droky sent in a great DIY Game of Life Build that uses a PIC 12F683. There are lots of details and he also provides the board layout and the PIC code so you could make your own. The capacitive sensors are a nice touch, the board also looks very well done! Here is the English Google translated version. "As it did not have enough memory on the PIC, I