gpio for various applications raspberry pi, usb, etc.

Land products, 128 I/O

http://land-boards.com/blwiki/index.php?title=DIGIO-128

RtK USB dongle for Raspberry pi GPIOs.  Supported by USB connection to a host with python drivers.

Any python access to GPIO's on RPI will work with the RtK

Original Kickstarter
https://www.kickstarter.com/projects/ryanteckltd/rtkgpio-a-usb-raspberry-pi-compatible-gpio-header
Sale page
https://www.modmypi.com/raspberry-pi/iousbanalogue-expansion-1028/interfacing-1080/ryanteck-rtk.gpio

Bitbucket library site
https://bitbucket.org/ryanteckltd/rtk-gpio-python-side

original site, shut down
http://ryanteck.uk/
https://web.archive.org/web/*/http://ryanteck.uk/