Tinkerlog

For my latest projects I used a lot of single cell lipo batteries. They are really nice. High power density, low self-discharge, no memory effect and they can deliver quite an amount of current.
But lipo battery handling is a bit more complicated as with other rechargeable batteries. You have to take care of under voltage [...]

[Read more →]

While we were at cheating, here is a new sticker for your notebook. It helps you to read and learn resistor values.
The first 10 direct messages to me will get one for free. And of course every next order at the Tinker Store will include one of these.

[Read more →]

The last couple of weeks I have been busy to put up a store for my kits and now I am glad to announce the one and only Tinker Store. The very first two kits are the Programmable LED and the Synchronizing Firefly. Along with the kits I did very detailed step-by-step instructions on how [...]

[Read more →]

This is for Mac OS X only, sorry folks.
I saw the funny command line interface to speech at Nerdlogger. Try this to play some tunes:

say -v Cellos “Dum dum dum dum dum dum dum he he he ho ho ho fa lah lah lah lah lah lah fa lah full hoo hoo hoo”

If you are [...]

[Read more →]

Thilo and I have been in Berlin for the last three days from 27th to the 29th, attending to the 24c3. It has been the first time for me beeing there. The 24c3 is one of the biggest events in Germany and Europe where geeks and hackers get together to talk, to hack and to [...]

[Read more →]