Posted June 18, 2012 by Chris

“I often need a simple function generator. Just to generate a certain frequency. After all the years I’ve worked with electronics, I still haven’t got me one. Even though I need it now and then, I just couldn’t seem to justify the cost of one. So, standard solution – build one yourself.”

Posted May 18, 2012 by Chris

“As USB keyboards were an area untouched, I decided to make a small USB HID keyboard device that types a password stored in EEPROM every time it’s attached. A new password can be generated just by tabbing CAPS LOCK a few times.”

Posted May 1, 2012 by Chris

“Although I’m planning on improving the software (better menus, the addition of sound, and implementation of a more efficient algorithm) and hardware, this device is currently functional therefore theoretically complete. This entry will serve as the primary reference page for the project, so I will provide a brief description of what it is and what it does.”

Posted April 28, 2012 by Chris

“So the collar runs off an Atmel AVR ATTINY2313. It has 5 blue LEDs, and is powered by 3 AAA batteries. I also etched a custom circuit board (toner transfer method) and then covered most of the components in hot glue. The LEDs and all the wires on the collar are also mounted using hot glue.”

Posted April 22, 2012 by Chris

“Around time when I was beginning to learn about microcontrollers I had exchanged my laptop with a senior at college for his desktop – that’s because the only way I knew how to program an ATMEGA chip was through either a serial port or a parallel port…Over the time I learned about an inexpensive way of making a USB based AVR programmer called USBasp. It’s faster, cheaper and has the convenience of letting you program AVRs from laptops. ”