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KY-021

KY-021 Mini Magnetic Reed Switch Module

December 3, 2021November 27, 2017 by ArduinoModules Categories Magnetic, Switches & Input 5 Comments

Arduino KY-021 Mini Magnetic Reed Switch Module

The KY-021 Magnetic Reed Switch module is a switch that is normally open and gets closed when exposed to a magnetic field, sending a digital … Read more

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