music pencil drawing: drawdio

While looking for a way to imitate a bird sound with a 555 timer or a Atiny something, this funny thing came out:

http://www.ladyada.net/make/drawdio/user.html

making sounds while drawing, you have to stay in touch with the drawing too, because you are part of the electronic circuitry!

http://web.media.mit.edu/~silver/drawdio/

based on a 555 or 551 timer

looks like the idea of the pencil connections could be modified and expanded easily, for instance with the Darlington pair and an ARDUINO connection, triggering “drawing input” and using it to steer FLASH movies….