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README
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README
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verdex-gpioin - PD External for GPIO input on Gumstix Verdex systems
Copyright (C) 2011 Tim Redfern
This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser
General Public License as published by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
================================================================
VERDEX-GPIOIN allows the state of GPIO pins 58-73 to be monitored from within PD (or pd-anywhere).
These GPIO pins are broken out on the audiostix board as LDD0-LDD15.
=================================================================
WARNING! DO NOT USE THIS SOFTWARE WITH ANY COMPUTER OTHER THAN A GUMSTIX VERDEX
HARDWARE DAMAGE IS POSSIBLE BY MANIPULATION OF GPIO PORTS ON EMBEDDED SYSTEMS
To use-
1. copy verdex_gpioin.pd_linux and verdex_gpioin-help.pd to:
EITHER the same folder as your patch, or the PD extras folder (/usr/lib/pd/extra)
2. connect a (~47k?) resistor from the LDD pin you are using to GND (pulldown resistor)
3. connect a push-to-make switch from VCC to the LDD pin
4. poll the external in PD as in the help file. verdex_gpioin will output a 0 or 1 when the GPIO state changes
5. use a higher or lower poll rate for quicker response/ more 'debounce'
=================================================================
VERDEX-GPIOIN was developed exclusively for Duncan Speakman - WeAreForests
Bugs, issues, suggestions: tim@eclectronics.org