I got a schematic that I was asked to make it work. It looks pretty easy, but I have no knowledge about solenoids, so I'm sending it here in case anyone wants to peek it. The pdf is the manufacturer's datasheet He writes: "I made test circuit as shown on nos.jpg. When I connect voltage to input1, solenoid doesn't work, it should start working then. Is there something wrong on my connection?" http://bos.hack.org/tmp/cache/nos.jpg http://bos.hack.org/tmp/cache/15974NOS.pdf -- - Rikard - http://bos.hack.org/cv/ -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist