der nulleffekt

Open Hard- and Software by Wolfgang Spahn.


Paper-Duino-Hat

16July2016
The latest version of the Paper-Duino-Pi as a Hat for the Raspberry Pi (B+ ,2 and 3), the Paper-Duino-Hat.


Bluetooth-Board

13Jun2016
Two Paper-Bluetooth-Boards for the Paperduino-UNO and the Mini-Duino: Bluetooth-Board.


Paper-Duino-Mini

7June2016
The latest and smalest member of the Paper-Duino familie: the Paper-Duino-Mini.

Also as a sewable version: the Fabric-Duino!


Hack of the digital.data.funeral(selfie)

30Mai2016
digital.data.funeral_hack

A smal hack for the digital.data.funeral(selfie) - USB stick of Audrey Samson.


PS202 - MIDI-Duino

23Mai2016
A simple MIDI-Arduino Board with MIDI-IN and MIDI-THRU/OUT and MIDI over USB.

Paper Bits

13Mai2016
Paper Bits is a small modular sythesizer, with a 8 Step-Sequenzer and 3 Oscillator. A sinus wave VCO, and a synced square/triangel wave VCO.


Build for and during my stay at the Indian Sonic Research Organisation.


VGA Board

18Jan2016
I made a new version of the Raspberry Pi VGA-Board.


Synth-Werk

The monthly Synthesizer Werkstatt for building Paper-Synthesizer modules and making faceplates, …

… and for social soldering.
by Antti Pussinen & Wolfgang Spahn


C Flash an LED on B+2

19Okt2015
The Raspberry Pi B and the B2 have different Chips. That's why for flashing an LED on the GPIOs one needs a different code in C-Programs:
Flashing an LED in C on B2


MIDI to CV

18Okt2015
Paper Synthesizer 201 - MIDI to CV:
A MIDI to control voltage board. 2 DAC and 4 fast PWM.


Wave Converter

09Mai2015
Paper Synthesizer 110 - Wave Converter:
The wave shaper board for our PS110 Voltage Controlled Oscillator done in cooperation with Antti Pussinen.


Voltage Controlled Oscillator

28Februar2015
Paper Synthesizer 110 - Voltage Controlled Oscillator: The saw wave core for a one volt per octave analog oscillator. Plus the calibration keyboard. In cooperation with Antti Pussinen.


VS1000 Audio Module

21July2014
OGG-Player-Board: A simple OGG-Player based on the VS1000 Audio Module.


SMD Soldering

18July2014
SMD Solder Manual: A small manual for SMD soldering.


Hard-Sync-Oscillator

21Jun2014
Paper-Synthesizer 100 - Hard-Sync-Oscillator: The first board of a modular Paper-Synthesizer. A project in cooperation with Antti Pussinen.


Paper-Duino-Pi

15Nov2013
Paper-Duino-Pi: The new version 3.2 of the Paper-Duino-Pi is released. It comes with an additional shutdown and reset button on the GPIO pins.


Paper USBasp

22Mrz2013
Paper USBasp: Use the paper USBasp programmer to burn Paper Duino and AVR chips.


Paper-Leonardo

20Feb2013
Paper-Leonardo: Paper-Leonardo is an Arduino clone with USB connection.


Paper-Duino-Pi 168

05Dec2012
Paper-Duino-Pi: Thanks to the Paper-Duino-Pi the Raspberry Pi as an all purpose artistic tool is now complete.


Paperduino-Uno

24April2011
Paperduino-Uno: The Paperduino-UNO is an easy and cheap way to build your own Arduino UNO clone.


Light-Type

25Nov2010
Light-Type: A simple Keyboard hack that allows for typing with light.


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