Datasheet — Hw-416-b Pir Sensor

The is a reliable, low-power motion detection module ideal for microcontroller projects requiring a fast response and compact footprint. While an official unified datasheet remains elusive, the specifications and behavior described in this article are based on reverse-engineered measurements and manufacturer-compliant components.

The HW-416-B is designed for reliability and ease of use. It operates by detecting changes in infrared radiation (heat) from moving objects like humans or animals. Operating Voltage: 5V to 20V DC. Static Current: Output Level: High 3.3V / Low 0V (TTL logic). Sensing Range: Up to 7 meters (adjustable). Detection Angle: 110 raised to the composed with power cone angle. Delay Time: 0.3 seconds to 5 minutes (adjustable). Block Time: Default 2.5 seconds. Pinout and Hardware Configuration

After the sensor output goes high, it stays high for the duration of the delay and then goes low, regardless of whether motion continues.

At midnight she tested again. The lamp obeyed: soft amber glow filling the room when she passed, conserving power the rest of the night. She smiled at the neatness of it—the way the datasheet’s sterile tables had translated into a living thing that answered a human need. The HW-416-B had become more than numbers; it was a small sentinel that watched over sleep and returned the favor with light. hw-416-b pir sensor datasheet

This adjusts how long the pin stays high after detecting motion. Clockwise: Increases delay (up to 5 minutes). Counter-clockwise: Decreases delay (down to 5 seconds). 4.3 Trigger Mode (Jumper)

What are you planning to use (ESP32, Raspberry Pi, etc.)?

Copy this article into a Word document, save as PDF, and you’ll have an unofficial but complete HW-416-B datasheet reference for your workshop. The is a reliable, low-power motion detection module

Are you triggering a specific ? (like a relay , buzzer , or smart home automation event )

Leo stepped back. He waited sixty seconds for the sensor to calibrate—a "warm-up" period mentioned in the specs. He stood perfectly still. The LED on his board remained dark. Then, he slowly reached for a chocolate bar.

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. It operates by detecting changes in infrared radiation

Based on behavior observed from multiple HW-416-B units:

4.5V to 20V DC (typically powered via 5V) Static Current Consumption: < 60 µA Digital Output Level: High (3.3V) / Low (0V)