Teachers Timer

I have just finished the website for my “Teachers Timer” project. This is all based on the documentation produced for the Circuit cellar competition last year.

here is the blurb:

Teachers Timer is an innovative and discrete timing device for assisting teachers and lecturers. Using cell phone style vibrations and a simple one-button interface the user can be alerted to the passage of time without staring at the clock. For lectures and presentations the device can also include a laser pointer that will gently fade in and out to alert the user.

My station master project is also up at brokentoaster.com/stationmaster/

New soldering videos

Just recorded some more soldering videos this weekend. One involves soldering a very fine pitch zigbee RF transceiver using some solder paste and a standard kitchen stove top. The other is a far more usual soldering of a TQFP ATMega 88 on the same board by hand.

You should of course carry this out in a well ventilated area as soldering fumes are toxic.

The PCB being constructed in these videos is an open source Zigbee module. Zigbee is a low power wireless mesh networking technology based on IEEE 802.15.4 initially aimed at home and industrial automation. You can get the PCB from http://www.anteeo.se/zigbee.php