WatchOut

about

The WatchOut!-Synthesizer makes sound due to a program on an attiny13-chip! Dependent on the light intensity, a solarpanel reads this program and gives the power for the sound production. The more light shines on the cell, the higher the pitch and louder the sound. There are different programs which defines the function of the two buttons. Because of the inconstant power-source the processing of attiny13 is very unstable, which actually gives us nice sounds!

The idea to have a synthesizer at the wrist was developed as a souvenir for the JurassicLaboratory Electronic-Music-Festival in Lucerne, Switzerland:
http://wiki.sgmk-ssam.ch/index.php/I
http://wiki.sgmk-ssam.ch/index.php/II
http://wiki.sgmk-ssam.ch/index.php/Three

equipment

To upload a new code use the following tools:

hardware

USB Programmer: http://www.ladyada.net/make/usbtinyisp/ or search for USBASP programmer
ATtiny13 Connector: [[1]]

software tools

Windows: CommandLine
Mac: Terminal, avrdude http://www.ladyada.net/learn/avr/avrdude.html

Or: Arduino: http://arduino.cc/en/Tutorial/ArduinoISP with a breadboard

code

final code is coming soon... or look up at thingiverse: http://www.thingiverse.com/thing:37478

electronics

1 PCB
1 100uF Capacitor
1 ATtiny13 with socket
1 Solarpanel
2 Buttons
1 Minijack socket
1 Piezo loudspeaker
Wire (for solarpanel)

datasheet

ATtiny13, the old version! Don't use the AtTiny13A, it works only with the one without the "A". ATtiny13

non-electronic material

2 M4 Screws
2 M4 Nuts
1 Acrylic deck
1 Acrylic base with
1 Wristband

laserfiles coming soon or look up at: http://www.thingiverse.com/thing:37478

how to

Keep attention by removing the chip, to not break the legs. And WatchOut! by soldering the solar panel...
If you need help in anything please contact us: www.laborluzern.org, labor(at)laborluzern.org

links

Swiss artist gloom performing on a rooftop concert with our Whatchout-synthie!
http://www.youtube.com/watch?v=k94ccUMakCU&feature=player_embedded
http://luzern.fablab.ch/bau-dir-einen-synthi-furs-handgelenk
http://www.thingiverse.com/thing:37478
http://www.wired.com/design/2012/12/diy-mini-synth
http://www.laborluzern.org