BeagleBone Black has a huge number of gpio pins, it's one of BeagleBoard's major selling points over RasPi at this point. I'm fairly certain the BeagleBone Black has more gpio pins than the Arduino.
Re:JavaScript right on the hardware
by chad_oliver on Wednesday August 14, 2013 @07:52PM
(#6215269)
BeagleBone Black also has a real-time module (effectively, a limited microcontroller on the same die as the CPU), which I expect could make for some sweet libraries.
Does the Pi have WiFi, though? Mine doesn't, but perhaps I don't have the latest model.
No it doesn't, but since it has USB ports you can augment it with a USB wifi module. A word of warning though. If you're thinking of buying one of these, make sure to check that it has good Linux support.
I can't say I particularly want the javascript, but if they've got wifi and arduino compatible gpio for ~ $25, then I can find a use for it.