Difference between revisions of "EffectPedal"

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{{Project
 
{{Project
|ProjectSkills=Soldering, Coding, UI design,
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|ProjectSkills=Soldering, Coding, UI design, Audio,
|ProjectStatus=Getting parts
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|ProjectStatus=Dead
 
|ProjectNiche=Electronics
 
|ProjectNiche=Electronics
 
|ProjectPurpose=Fun
 
|ProjectPurpose=Fun
 
|ProjectParticipants=User:Dreamer,
 
|ProjectParticipants=User:Dreamer,
 
}}
 
}}
The idea is to use the Pandora and it's I/O on the Ext-Connector in combination with an <s>MSP430</s> [http://hackaday.com/2008/12/27/parts-8bit-io-expander-pcf8574/ I2C port Expander] and [http://hackaday.com/2012/06/28/using-an-hd44780-character-lcd-with-the-raspberry-pi/ LCD-display] to make a 'stompbox' effects-pedal using hardware inputs and software processing.
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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 ==
 
== Hardware ==
  
 
* Pandora portable computer
 
* Pandora portable computer
* <s>MSP430 Launchpad for prototyping</s> (libs I wanted to use are not yet compatible, and I don't have the skills to rewrite them :) )
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* MSP430 Launchpad for prototyping (communicating over UART)
* I2C port Expander (TI PCF8574N)
 
 
* ext-connector and breakout-board
 
* ext-connector and breakout-board
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* Audio-plugs, [http://cgi.ebay.nl/ws/eBayISAPI.dll?ViewItem&item=390272344178 buttons], knobs (pot-meter? rotary-encoder?), hd44780-display,
  
 
== Software ==
 
== Software ==
  
* Puredata
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* Puredata - (With some externals: comport, wiimote, iemmatrix, pdp?)
* Possible external to talk to the GPIO-pins
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* Jack2 (jack1 has alignment error-thingies) - Can get as low as 21.3msec latency.
* <s>MSP430-embedded code</s>
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* MSP430-embedded code
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* Protocol to talk between Pd and controller (read buttons, send lcd-message)
  
 
== Ideas ==
 
== Ideas ==
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* Use Pandora touchscreen for direct control -> Kaospad-ish effects
 
* 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)
 
* Do video-processing as well (GEM, pdp) over the video-out for live visuals (GEM may not (yet) work on OpenGL ES2)
* Rename/categorize, because of no more MSP430
 
 
* Next project -> replace Pandora with RasPi, which to embed inside the stompbox
 
* Next project -> replace Pandora with RasPi, which to embed inside the stompbox
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==Further reading==
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* https://ccrma.stanford.edu/wiki/Stompbox_2011 - workshop using Pd and Beagleboard, with demo-patches!
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* http://guitarextended.wordpress.com/2012/03/05/guitar-effects-chain-with-pure-data/ - nice example patch with some basic effects
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[[Category:MSP430]]

Latest revision as of 18:19, 6 December 2015

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