The HW-416-B is a compact, highly efficient Pyroelectric Infrared (PIR) motion sensor module widely used in DIY electronics, security systems, and automated lighting projects. This guide provides a comprehensive technical overview, operational details, and practical implementation strategies for the HW-416-B module. 1. Technical Specifications and Datasheet
After the output goes LOW, the sensor locks itself for roughly 2.5 seconds to prevent self-triggering from minor ambient changes. It will ignore all movement during this time.
Passive Infrared (PIR) sensors are the backbone of modern security systems, automated lighting, and smart home robotics. Among the various budget-friendly modules available to makers and engineers, the stands out for its compact form factor, reliability, and ease of integration.
If motion is detected continuously within the delay window, the internal timer resets, keeping the output HIGH until the target stops moving and the delay time elapses. 🔬 How the HW-416-B Works hw-416-b pir sensor datasheet
Some HW-416-B modules use an onboard 3.3V regulator , so the output pin is 3.3V – safe for 5V logic inputs (e.g., Arduino, STM32).
The HW-416-B is a passive infrared (PIR) module that acts as a digital switch, sending a "high" signal when it detects a change in the infrared environment. 4.8V to 20V DC (Standard 5V is ideal).
The HW-416-B PIR sensor is an easy-to-use and reliable module that allows you to add motion detection to any of your projects. With its straightforward three-pin interface, adjustable settings, and wide operating voltage, it is well-suited for many DIY and professional designs. Whether you're building a security system or automating your home, the HW-416-B is a strong choice. The HW-416-B is a compact, highly efficient Pyroelectric
Some early HW-416-B modules have an additional jumper for 5V/3.3V output selection, but the standard version is fixed at 3.3V logic. Always check your specific board revision.
Since the HW-416-B lacks an official manufacturer datasheet, you can substitute it with:
Turning this clockwise increases the detection distance (up to ~7 meters). Turning it counter-clockwise reduces the range (down to ~3 meters). Technical Specifications and Datasheet After the output goes
This comprehensive guide serves as an expanded datasheet and implementation manual for the HW-416-B. It covers its core technical specifications, operational mechanics, pin configuration, adjustment procedures, and step-by-step integration with microcontrollers like Arduino. 1. What is the HW-416-B PIR Sensor?
Turning on LED strips or lamps when someone enters a room and turning them off after they leave.
Complete Guide to the HW-416-B PIR Motion Sensor: Datasheet, Pinout, and Arduino Integration
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.