Hw-416-b Pir Sensor Datasheet [verified] May 2026

HW-416-B PIR Sensor Datasheet & Guide is a popular passive infrared (PIR) motion sensor module, commonly used in security systems, smart lighting, and DIY electronics projects . It is physically and functionally identical to the

The Lens: The white dome is a Fresnel lens. It focuses infrared light from multiple angles onto the tiny pyroelectric sensor inside. PIR Motion Sensor HW416B - Tayda Electronics hw-416-b pir sensor datasheet

uses internal digital signal processing which makes it less susceptible to power supply noise or electromagnetic interference. HW-416-B PIR Sensor Datasheet & Guide is a

HW-416-B PIR Sensor Datasheet: Pinout, Specifications, and Application Guide

Introduction

The HW-416-B is one of the most popular and cost-effective Passive Infrared (PIR) motion sensor modules available on the market. Often recognized by its white circular housing and three-pin male header, this board is a staple in Arduino, Raspberry Pi, and ESP32 projects. Despite its widespread use, finding a consolidated, accurate datasheet for the HW-416-B can be challenging, as it is frequently confused with the HC-SR501. PIR Motion Sensor HW416B - Tayda Electronics uses

Output goes low once the delay expires, regardless of continued motion. H (Repeatable): Output stays high as long as continuous motion is detected. Basic Arduino Connection