Hw-416-b Pir Sensor Datasheet | Exclusive |

Adjusts how long the output pin remains "HIGH" after motion is detected. Clockwise increases the delay (up to 200 seconds); counter-clockwise decreases it (down to ~0.5 seconds). 4. Operational Modes (Jumper Settings)

The is a high-performance passive infrared (PIR) motion sensor module, frequently used as a direct, reliable replacement for the standard HC-SR501 . It detects human and animal movement by sensing changes in infrared radiation emitted by warm objects. Core Specifications is electrically and physically identical to the Go to product viewer dialog for this item. hw-416-b pir sensor datasheet

| Pin Number | Pin Name | Description | | :--- | :--- | :--- | | 1 | | Power input (5V – 20V DC) | | 2 | OUT | Digital output: HIGH when motion detected, LOW when idle | | 3 | GND | Ground (0V) | Adjusts how long the output pin remains "HIGH"

int motionPin = 2; int ledPin = 13;

The HW-416-B is fantastic, but it has a "memory." The pyroelectric sensor needs time to "reset" and stabilize after it triggers. | Pin Number | Pin Name | Description

The module typically features three pins, usually marked on the PCB or under the white Fresnel lens: Power input ( is recommended for most applications). OUT: Digital output signal ( 3.3V3.3 cap V GND: Ground connection. On-Board Adjustments

⚠️ The sensor needs 10–60 seconds to calibrate after power-on. During this time, it may trigger falsely or stay LOW. This is normal.