Hw-416-b Pir Sensor Datasheet _verified_

is a compact Passive Infrared (PIR) motion sensor module widely used in DIY electronics and security systems. It is essentially a variant of the popular , sharing a similar footprint and operation. Key Technical Specifications

If you are using a 3.3 V‑only board (e.g., Particle Argon), do connect the VCC pin to 3.3 V. Instead, use the dedicated 3.3 V input pin on the module as described in the Hardware setup for 3.3 V section. Trying to power the normal VCC pin with 3.3 V will not work because the onboard regulator expects at least 5 V.

The HW-416-B operates by detecting infrared radiation emitted by heat-producing bodies. When a heat source moves across the sensor's field of view, it triggers a high signal on the output pin. Specification DC 4.5V – 20V Static Current Level Output High 3.3V / Low 0V Trigger Method L (non-repeatable), H (repeatable - default) Delay Time Adjustable (approx. 0.5s to 200s) Blockade Time 2.5s (default) Detection Angle < 100° cone angle Detection Distance 3 to 7 meters (adjustable) Operating Temp -15°C to +70°C PCB Dimensions 32mm x 24mm 2. Pinout Configuration

When a human walks past, they pass the first slot, causing a positive differential change. As they continue walking, they pass the second slot, causing a negative differential change. hw-416-b pir sensor datasheet

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Turn the sensor over to inspect the back of the PCB. You will find two small potentiometers (trim pots) that allow you to calibrate the module's behavior manually without altering your source code:

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) is a compact Passive Infrared (PIR) motion sensor

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 HW-416-B usually has three pins, often exposed by removing the plastic Fresnel lens dome. OUT (Output): Digital output signal (High/Low). GND (Ground): Ground reference. 4. Key Components & Working Principle

import RPi.GPIO as GPIO import time

The HW-416-B is a PIR motion sensor designed to detect motion by measuring changes in the infrared (heat) levels emitted by surrounding objects. Unlike active sensors, PIR sensors do not emit energy; they only "passively" receive infrared radiation.

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When designing a circuit around the HW-416-B, staying within its electrical limits ensures longevity and prevents false triggering. Below are the core parameters typically found in its engineering datasheet: Specification / Value 4.5V to 20V DC (5V standard) Output Signal (Digital) High (3.3V) / Low (0V) Static Current Consumption < 50 µA to 65 µA Detection Distance 3 meters to 7 meters (adjustable via onboard potentiometer) Detection Angle < 100° to 110° cone angle Delay Time 0.5 seconds to 200 seconds (adjustable) Blockade Time 2.5 seconds (default) Trigger Modes L (Non-repeatable) / H (Repeatable - Default) Operating Temperature -15°C to +70°C PCB Dimensions Approx. 32mm x 24mm 3. Pinout and Hardware Configuration Instead, use the dedicated 3

If the output remains permanently LOW:

He flipped the board over to see the two orange potentiometers. The Time Pot: