Hw-416-b Pir Sensor Datasheet

Pairing the HW-416-B with a buzzer or GSM module to alert homeowners of entry.

While exact mechanical drawings vary slightly by manufacturer, typical dimensions for the HW-416 module are approximately with a height of roughly 25 mm when accounting for the lens and potentiometers. Allow for an additional ~10 mm clearance when planning enclosure space.

When motion is detected, the output goes HIGH and stays HIGH for the set delay duration, then drops LOW. It ignores any movement during that delay period. hw-416-b pir sensor datasheet

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

If you hold the board with the white dome (Fresnel lens) facing up and look at the pin header from the side, the pinout is generally structured as follows (always verify with the silkscreen markings on your specific board revision): Pairing the HW-416-B with a buzzer or GSM

Power supply input. Connect this to a stable DC voltage source between 4.5V and 20V (the 5V pin on an Arduino is ideal).

The repeatable mode is the default and is suitable for most applications (e.g., lights that stay on while someone is in the room). The non‑repeatable mode is useful for triggering a single event per motion. When motion is detected, the output goes HIGH

0.5 seconds to 200 seconds (Adjustable via onboard potentiometer)

[ Sensitivity ] [ Time Delay ] ( Rx Adj ) ( Tx Adj ) (_) (_) Counter: Min Counter: Min Clock: Max Clock: Max 1. Sensitivity Adjustment (Distance)

The HW-416-B is a passive infrared (PIR) sensor module commonly used in motion detection applications, such as security systems, lighting control, and robotics. In this post, we'll provide an overview of the HW-416-B PIR sensor datasheet, including its features, specifications, and usage guidelines.

The sensor needs about 30 to 60 seconds to "learn" the infrared signature of the room after powering on. Expect false triggers during this time.