GPIO with Ruby

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petervojtek edited this page Apr 19, 2013 · 4 revisions

gpio gem

not working at all
motion = GPIO::MotionDetector.new(pin: 7) raises Errno::ENOENT: No such file or directory - /sys/class/gpio/gpio7/value

WiringPi gem

not working for me
io = WiringPi::GPIO.new; io.write(4,1) wont light a LED

Pi Piper

works fine
on RPi model A takes a long time to install (due to ffi installation)
use gem install pi_piper --no-ri --no-rdoc