SEN0018, Digital Infrared Motion Sensor

# Arduino Motion Sensor Overview This is a simple-to-use Arduino motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the 'alarm' pin will go low. This sensor checks for infrared heat in its detecting angle. Human bodies, pets, and several other objects emit energy that the sensor detects. If there is a recent change compared to the snapshot, it triggers an alert. ## Key Features - **Digital Output:** Provides a clear HIGH (4V) or LOW (0.4V) signal based on motion detection. - **Wide Detection Range:** Detects motion within a 110-degree angle and up to 7 meters distance. - **Low Power Consumption:** Operates with a current of only 50μA, making it energy-efficient. - **Flexible Voltage Support:** Compatible with 3V to 5V power supply. - **Temperature Range:** Operates reliably from 0°C to +70°C, suitable for various environments. - **Compact and Lightweight:** Measures 28mm × 36mm and weighs only 25g, perfect for space-constrained projects.