PIR Motion Sensor RE200B

Description

What it is

The RE200B PIR sensor is an infrared pyroelectric radial device used for motion detection. It is designed to detect temperature variations caused by the heat emitted from moving humans or animals.

Features

• RE200B Infrared Pyroelectric Radial Sensor LHI874/LHI878/RE200B/P228 PIRD204S
• Ideal for automatic light projects and anti-theft systems

What it is for

Suitable for both beginners and experts, this sensor can be used in various electronic devices. It can be easily integrated with platforms like Arduino or ESP to create simple home alarm systems that send a notification via serial monitor when motion is detected.

Tutorial: How to use RE200B PIR Sensor

The RE200B PIR sensor is a crucial component for motion detection projects. Ideal for both beginners and more experienced makers, this sensor can be used in various electronic devices.

What you need

• Arduino Uno or compatible
• USB connection
• 5V power supply
• jumper wires

Steps

1. Connect the PIR sensor pins to those of the Arduino: VCC to 5V, GND to ground, OUT to a digital input pin of the Arduino.
2. Configure the digital input pin as INPUT in the Arduino code.
3. Write a simple sketch that reads the pin state and sends a notification when motion is detected.
4. Check the specifications on the datasheet to correctly set the sensitivity and delay pins.
5. Test the sensor in different environmental conditions to optimize its performance.
6. If necessary, add a pull-down or pull-up resistor to the PIR sensor output pin.
7. Include an LCD display or an LED that turns on when motion is detected.
8. Implement the project in a real-world context such as a home security system.

Example code

void setup() { pinMode(2, INPUT); Serial.begin(9600);} void loop() { if (digitalRead(2) == HIGH) {Serial.println('Movimento rilevato!');}

Mini project

Create a simple home alarm that sends a notification via serial monitor when motion is detected.

Common mistakes

• Set the sensor’s output pin as OUTPUT instead of INPUT.
• Do not check the specifications on the datasheet for proper configuration.
• Omit necessary pull-up or pull-down resistors.
• Connect the sensor to a voltage different from the supported one (5V).

Recommended accessories

• 16×2 LCD Display
• Relay Module
• Buzzer
• RGB LED

Frequently asked questions

Can the RE200B PIR sensor detect motion through walls?
No, the sensor must have a direct view of the detection field.

What is the maximum detection range of the sensor?
Check the datasheet to obtain this specific information.