When the magnet is removed, the flexible reeds spring apart and re-open the circuit. The reed switch was patented in 1941 by Walter B. Ellwood, a Bell Labs engineer. Ellwood was looking to design ...

Demonstrates how to use a magnetic door/window sensor which is based on a reed switch. This app is developed for a door sensor which contains a MC-38 N.O. Normally Opened magnetic reed switch. This ...

To pull this off, [Brent] used what he had on hand, which was an M5Stack ESP32 module, a magnetic reed switch, and of course, the cat exercise wheel [Luna] seemed to be in the habit of using at ...

based on magnetic field applied. Examples include, smart meters, shelf labels, reed switch replacement, smart home etc. Please refer to NMH1000 Magnetic Switch Sensor Datasheet for more information.