Hw-416-b Pir Sensor Datasheet Jun 2026

Adjustable (typically 5s to 200s or more depending on the specific potentiometer settings). Static Current: < 50µA, making it ideal for battery-powered projects. Pin Configuration

Do not point the sensor toward heaters, air conditioners, or direct sunlight, as rapid temperature changes can cause false positives.

Last updated: October 2025. Specifications are based on Revision 2.3 of the HW-416-B board. Always verify with your specific module version. hw-416-b pir sensor datasheet

const int motionPin = 2; const int ledPin = 13; int motionState = 0;

The sensor needs about 30 to 60 seconds to "learn" the infrared signature of the room after powering on. Expect false triggers during this time. Adjustable (typically 5s to 200s or more depending

The output remains high as long as motion is detected within the delay period.

The HW-416-B is a passive infrared (PIR) sensor module designed to detect human presence and movement. PIR sensors are widely used in various applications, including security systems, smart home devices, and robotics. In this write-up, we will provide an overview of the HW-416-B PIR sensor, its features, specifications, and usage guidelines. Specifications are based on Revision 2

This comprehensive guide serves as an expanded technical datasheet and implementation manual for the HW-416-B module. Technical Specifications and Features

PIR sensors are prone to environmental noise. If your HW-416-B experiences erratic behaviors or false alarms, check the following:

The 3.3V HIGH signal is standard for PIR chips (like the BISS0001 frequently utilized on these modules). This is perfectly adequate to trigger a 5V Arduino digital pin, which registers any voltage above 3.0V as a logic HIGH.

High (3.3V) when motion is detected / Low (0V) when idle Detection Distance: Adjustable from 3 meters up to 7 meters Detection Angle: Less than 110-degree cone shape Delay Time: Adjustable from 0.5 seconds to 200 seconds