Rotobotix Mini ReeD Module(Multicolor)

A reed module is a magnetic sensor that is normally open and get closed when exposed to a magnetic field.In our example turn off the buildin LED on pin 13 if the sensor is closed. For this you need to keep a magnet near the sensor.The module includes a 10 K Ohm resistor, so no additional parts needed.Product Features:1. the working voltage: DC 5 V2. with mounting holes for easy fixed installation;3. the output valid signal is low;4. a sense of distance to stay away, as far as the effective sensing distance up to 5CM, (with field strength);5. high sensitivity magnetic sensors;6. the output switch circuit board can be directly connected to the microcontroller IO port;7. can be used for magnetic detection, position detection and other occasions.