I'm happy to announce hArduino: a library that allows Arduino boards to be controlled directly from Haskell. hArduino uses the Firmata protocol ( http://firmata.org), to communicate with and control Arduino boards, making it possible to implement many controller projects directly in Haskell. Home page: http://leventerkok.github.com/hArduino/ Hackage: http://hackage.haskell.org/package/hArduino Some example programs: Blink the led: http://hackage.haskell.org/packages/archive/hArduino/latest/doc/html/System-... Digital counter: http://hackage.haskell.org/packages/archive/hArduino/latest/doc/html/System-... Control an LCD: http://hackage.haskell.org/packages/archive/hArduino/latest/doc/html/System-... Short (4.5 mins) youtube video of the blink example: http://www.youtube.com/watch?v=PPa3im44t2g hArduino is work-in-progress: Patches, bug-reports, and feedback is most welcome. -Levent.