EffectPedal
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| Projects | |
|---|---|
| Participants | |
| Skills | Soldering, Coding, UI design, Audio |
| Status | Dead |
| Niche | Electronics |
| Purpose | Fun |
The idea is to use the Pandora and it's I/O on the Ext-Connector in combination with an MSP430, buttons/knobs, and Character-display, to make a 'stompbox' effects-pedal using hardware inputs and software processing.
Hardware
- Pandora portable computer
- MSP430 Launchpad for prototyping (communicating over UART)
- ext-connector and breakout-board
- Audio-plugs, buttons, knobs (pot-meter? rotary-encoder?), hd44780-display,
Software
- Puredata - (With some externals: comport, wiimote, iemmatrix, pdp?)
- Jack2 (jack1 has alignment error-thingies) - Can get as low as 21.3msec latency.
- MSP430-embedded code
- Protocol to talk between Pd and controller (read buttons, send lcd-message)
Ideas
- Use Pandora touchscreen for direct control -> Kaospad-ish effects
- Do video-processing as well (GEM, pdp) over the video-out for live visuals (GEM may not (yet) work on OpenGL ES2)
- Next project -> replace Pandora with RasPi, which to embed inside the stompbox
Further reading
- https://ccrma.stanford.edu/wiki/Stompbox_2011 - workshop using Pd and Beagleboard, with demo-patches!
- http://guitarextended.wordpress.com/2012/03/05/guitar-effects-chain-with-pure-data/ - nice example patch with some basic effects