MR-HY3612 – Universal Switch Module for Human Body Induction DC5-24V

Description

Tutorial: How to Use the Universal Switch Module MR-HY3612

The MR-HY3612 module is a human body movement detector that operates with a voltage range of 5V to 24V. It is ideal for home automation or security projects that require the detection of human presence.

What you need

• Arduino or compatible microcontroller
• Power Supply Connections
• Data Connections

Steps

1. Connect the power supply to the module (DC5-24V)
2. Connect the output signal to a digital pin on the Arduino
3. Upload the example sketch to the Arduino
4. Verify the proper functioning of the module using the Serial Monitor software
5. Configure the sensitivity of the module according to the project requirements

Example code

const int outputPin = 2; // Collega l'output del modulo al pin digitale 2

void setup() {
  pinMode(outputPin, INPUT);
  Serial.begin(9600);
}

void loop() {
  int sensorValue = digitalRead(outputPin);
  Serial.println(sensorValue);
  delay(500);
}

Mini project

Create a home security system that turns on the lights when someone approaches. Connect the MR-HY3612 module to a relay and a digital output of the Arduino. When the sensor detects movement, the Arduino activates the relay to turn on the lights.

Common mistakes

• Do not verify the correct supply voltage
• Do not properly configure the module sensitivity
• Connect the module without protection against inductive currents
• Do not test the module with the Serial Monitor software

Recommended accessories

• Relay for Arduino
• Prototype board connector kit
• AC power supply
• Electronic prototyping kit

Frequently asked questions

Does the module work with Arduino?
Yes, it is compatible with Arduino and similar microcontrollers.

How can I adjust the module sensitivity?
Check the datasheet for configuration instructions.