พร้อมส่ง-Reed Sensor Module Magnetron Module Reed Switch MagSwitch for Arduino

Module features:
1. Import Normal Open Reed
2. The comparator output signal is clean, good waveform, driving ability is more than 15mA.
3. Operating voltage 3.3 V-5 V
4.The output format: digital switching output (0 and 1).
5.Fixed bolt for easy installation.
6.Small PCB board size: 3.2 cm x 1.4 cm.
7.Use a wide voltage LM393 comparator.

Advice
Reed dry Reed short, is a passive electronic switch, the contact element has a simple structure, small size and easy to control, etc., the shell is basically a seal tube, equipped with two flexible steel reed panels, called rhodium metal, has packed inert. Gas.Normally, two glass tubes are made of special material reeds separately.When the magnetic substance is close to the glass tube under the action of the magnetic field lines, the two reed magnetic tubes and attract each other contacts, the reed will be pulled together to form a circuit. of the connected node communication after the disappearance of the external magnetic force 2 reeds separate due to their flexibility, these cables are detachable Therefore, as a control signal used with magnetic lines of switching devices, reed can be used as a sensor for counting, spacing, and so on (in security systems, mainly used for door sensors, magnetic window production), but also widely used in a variety of Communication equipment to practice.

Source code:
// Arduino test program for DO connection (for example):

int Led = 13; // define LED interface
int buttonpin = 3; // define the Reed sensor interface
int val; // define digital variable val

void setup ()
{
pinMode(Led, OUTPUT); // define the LED for the output interface
pinMode(buttonpin, INPUT); // define Reed sensor as the input interface
}

void loop ()
{
val = digitalRead(buttonpin); // to assign the value of digital interface 3 read val
if (val == LOW) // when the Reed sensor have a signal, the LED light
{
digitalWrite(Led, HIGH);
}
else
{
digitalWrite(Led, LOW);
}

}