Hw-416-b Pir Sensor Datasheet May 2026

The HW-416-B: The "Always Watching" Sentinel for Your Projects

In the world of DIY electronics, few components offer as much "bang for your buck" as the Passive Infrared (PIR) sensor. The HW-416-B is a popular iteration of the classic HC-SR501 design, repackaged into a smaller, more breadboard-friendly form factor.

Delay (Tx): Turning clockwise increases the "ON" time after motion is detected. Tip: Turn fully counter-clockwise for a short (~ second) delay, which is best for initial testing. Trigger Jumper hw-416-b pir sensor datasheet

Usage Guidelines

  1. Sensitivity (Range): This adjusts how far away the sensor "sees." Turn it clockwise to increase the range (up to 7m) or counter-clockwise to decrease it (down to ~3m). This is perfect if you want to avoid detecting motion from the street outside your window.
  2. Time Delay: This determines how long the sensor stays "HIGH" (active) after it detects motion.
    • Idle: Output pin is LOW (0V).
    • Motion Detected: Output pin jumps to HIGH (3.3V - 5V, depending on input).

    This guide serves as a functional datasheet and technical overview to help you integrate the HW-416-B into your next project. 1. Technical Specifications The HW-416-B: The "Always Watching" Sentinel for Your

    The HW-416-B is designed for simplicity. It operates by detecting the infrared radiation (heat) emitted by living bodies. Specification Operating Voltage DC 4.5V – 20V Static Current Output Level High 3.3V / Low 0V Trigger Method L (Non-repeatable) / H (Repeatable) Detection Angle < 100° cone angle Detection Distance 3 to 7 Meters (Adjustable) Delay Time 5s to 200s (Adjustable) Operating Temperature -20°C to +80°C Lens Size 23mm (Diameter) 2. Pinout Configuration Sensitivity (Range): This adjusts how far away the

    Getting Started with the HW-416-B PIR Motion Sensor: A Complete Guide