i have the duemilanove board, and just found this 6v DC solenoid at a local workshop.
i read the pdfs on relays and solenoids, but i thought maybe the arduino's internal power supply of 5v might suffice for driving the solenoid to maybe hit a bell or something.
do i need a transistor to do this? or do the digital outputs of the arduino serve as on off switches for the solenoid?
also, code examples would be awesome....!
thanks guys ;)