When reed switch is opened, pin 2 of Arduino goes high with the help of the pull-up resistor R2, and the alert signal is available through the piezo-speaker PZ1 (not an active piezo-buzzer). At the ...

They turned to an Arduino along with some beefy motor drivers ... An IR remote allows the operator to open and shut the door and reed switches sense the extremes of the door’s motion.

Featured on the official Arduino Blog the chessboard allows you ... and to which specific grid square via an 8×8 matrix of reed switches that close a circuit whenever there is a magnet nearby.

Littelfuse, Inc. has released the MACD-14 and MASM-14 Series, a high-precision extension of its reed switch product line. Littelfuse, Inc. has released the MACD-14 and MASM-14 Series, a high ...