Hw-416-b Pir Sensor Datasheet Jun 2026

This makes coding incredibly simple. You don't need complex analog-to-digital conversion; you simply check if a digital pin is HIGH. If it is, sound the alarm.

, offering tight component tolerances for stable performance in varying temperatures. Specification DC 4.5V – 20V Static Current Output Level 3.3V (High) / 0V (Low) Detection Range Adjustable from 3m to 7m Detection Angle < 120° cone angle Delay Time Adjustable (approx. 0.3s to 5 minutes) Operating Temp -20°C to +80°C Pinout & Wiring HC-SR501 PIR MOTION DETECTOR

The is one of the most popular, affordable, and versatile motion detection modules used in electronics projects, automation, and security systems. Often recognized interchangeably with the HC-SR501 module, this sensor provides a robust solution for detecting human or animal movement by sensing changes in infrared radiation.

If you are walking through a sensor's field of view, stop completely, and then start moving again, the sensor might miss the second movement because it is still stabilizing from the first. In robotics or high-speed detection scenarios, this latency can be an issue. However, for standard security and lighting, it is negligible. hw-416-b pir sensor datasheet

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The module functions through a dual-element pyroelectric sensor hidden beneath a plastic .

Here are a few simple code examples in different programming languages. This makes coding incredibly simple

Because the sensor relies on heat signatures, avoid placing it near air conditioners, heating vents, incandescent light bulbs, or direct sunlight. Rapidly changing ambient air currents can cause false positive triggers.

The HW-416-B PIR sensor has a simple 3-pin interface:

This article provides a deep dive into the HW-416-B PIR sensor datasheet, including technical specifications, pinout configurations, sensitivity adjustments, and integration with microcontrollers like Arduino. 1. What is the HW-416-B PIR Sensor? , offering tight component tolerances for stable performance

For applications requiring immediate action upon motion detection, consider using rather than polling the sensor in a loop for improved response time.

The workshop at the edge of town smelled of solder and lemon oil. Under a crooked lamp, Mira wiped a smudge from a tiny board labeled HW-416-B and held it up to the light. It was one of those everyday miracles: a compact PIR sensor module—unassuming, bronze pins like teeth, a plastic dome that hid a miniature world of circuits and possibility.

The HW-416-B offers an excellent balance of affordability, ease of use, and reliable motion detection performance. Its wide voltage tolerance, low power consumption (under 50 µA quiescent), adjustable sensitivity/delay, and dual trigger modes make it a go‑to choice for both hobbyist and professional motion detection applications.

. It is designed to detect motion by sensing changes in infrared radiation emitted by objects like human bodies. Key Technical Specifications Based on documentation from Tayda Electronics Popular Electronic