All posts on April, 2009



Square Band

Square Band
Square Band is a portable square wave synthesizer that is worn around the wrist to make a ubiquitous instrument that allows for a bodily form of musical expression.[more]

Posted in : Sound related projects

ATtiny breadboard headers

ATtiny breadboard headers
These little breadboard headers are very handy. They occupy only one more row on each side as a controller would need. These tiny controller boards are build to provide a quick start for projects with 8 and 20 pin AVR microcontrollers, e.g. ATtiny13, ATtiny45, ATtiny85 and ATtiny2313. [more]

Posted in : AVR projects

Tweeting Cat door

Tweeting Cat door
Each cat has a small RFID tag on the collar. When a cat is in the close proximity of the door, a small RFID reader reads the tag and if the cat is authorized, a servo will unlock the cat door. The RFID reader and the servo controller are connected to an old laptop. The software on the laptop is written in Delphi and for each “cat door event” is sending a Twitter message and a picture to the Twitter.[more]

Posted in : General electronic projects | RFID projects

fritsl ’s first robot - The Picaxe-based robotic

The Picaxe-based robotic
The Picaxe-based robotic
Although this is a first robot built by fritsl a member on LetsMakeRobots. But, I think it is a great DIY robotic for first building. Using Picaxe to drives hacked servos and navigates via ultrasonicย�sensors mounted on a servo. Also shoots “laser” and make sounds.[more]

Posted in : robot projects

The Propeller Clock from HDD motor

The Propeller Clock from HDD motor
Awesome, I have seen many Propeller Clock projects but I rather like this. It made of the rotating 33 LEDs line and the HDD motor. Sory, no details about making just video only. Guarantee with five stars from 443 rating(on April 18,2009).

[more]

Posted in : Clock projects

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