Hw-416-b Pir Sensor Datasheet -

The HW-416-B is a standard Passive Infrared (PIR) motion sensor module, frequently used in DIY electronics projects with microcontrollers like Arduino, Raspberry Pi, and ESP32. It is essentially a variant of the widely documented HC-SR501 module. Technical Specifications Operating Voltage: typically 4.5V4.5 cap V 12V12 cap V Output Signal: Digital HIGH ( 3.3V3.3 cap V ) when motion is detected; Digital LOW ( ) when idle. Detection Range: Adjustable up to meters (approx. Detection Angle: Approximately 110∘110 raised to the composed with power Quiescent Current: Extremely low, often less than Time Delay: Adjustable from approx. seconds to seconds via on-board potentiometer. Pinout and Connections

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

The HW-416-B includes two orange potentiometers and a trigger jumper to fine-tune its behavior: Potentiometers

Sensitivity (Sx): Turning clockwise increases the detection distance.

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

Single Trigger (L): Once motion is detected, the output stays HIGH for the set delay and then goes LOW, even if movement continues.

Repeatable Trigger (H): (Default) The output stays HIGH as long as motion is continuously detected, resetting the delay timer with each movement.

💡 Quick Pro-Tip: PIR sensors require a "warm-up" period of about 30 to 60 seconds after powering on to calibrate to the environment's infrared signature. During this time, you may get false triggers.

If you tell me which microcontroller you're using (like an Arduino Uno or Raspberry Pi), I can provide a specific wiring diagram and code snippet to get your sensor running. PIR Motion Sensor HW416B - Tayda Electronics

HW-416-B PIR Sensor Datasheet & Guide is a popular passive infrared (PIR) motion sensor module, commonly used in security systems, smart lighting, and DIY electronics projects . It is physically and functionally identical to the

module, making most tutorials and documentation for that sensor directly applicable to the Technical Specifications

The sensor operates by detecting infrared radiation emitted by the human body. Operating Voltage: 4.5V to 20V DC (5V recommended). Static Current: Output Signal:

Digital TTL High (3.3V) when motion is detected; Low (0V) otherwise. Detection Range: 3 to 7 meters (adjustable via potentiometer). Detection Angle: Approximately 110° to 120°. Delay Time: 0.3 seconds to 5 minutes (adjustable via potentiometer). Operating Temperature: -20°C to +80°C. Pinout Configuration How PIR Sensor Works and How To Use It with Arduino

Electrical Specifications (Absolute Maximum Ratings)

| Parameter | Min | Typical | Max | Unit | | :--- | :--- | :--- | :--- | :--- | | Supply Voltage (VCC) | 4.5 | 5.0 | 20 | V | | Output Current (sink/source) | – | 10 | 100 | mA | | Output Logic High | 2.4 | 3.3 | 3.5 | V | | Output Logic Low | 0 | 0.4 | – | V | | Standby Current | 20 | 45 | 60 | µA | | Warm-up Time (initial power-on) | – | 30 | 60 | sec |

Critical Note: Do not connect the output directly to a high-current load (e.g., a relay or LED strip). Use a transistor or an optocoupler for isolation.

Functional Block Diagram

Understanding the internal architecture helps in reading the datasheet correctly. The HW-416-B consists of: hw-416-b pir sensor datasheet

Pyroelectric Sensor Element (RE200B or equivalent) – Detects infrared radiation changes.
Fresnel Lens – Focuses IR signals onto the sensor element.
Signal Amplifier – Uses an op-amp (often LM324 or BISS0001 IC) to boost the tiny sensor signal.
Comparator – Triggers the output when the signal crosses a threshold set by the potentiometer.
Output Driver – Provides the TTL logic level output.

The key IC on most HW-416-B boards is the BISS0001 (or a clone like the HT7610B). Referencing the BISS0001 datasheet can give you deeper insight into the timing and sensitivity adjustment.

3. Trigger Mode Jumper (3-pin header with a shunt cap)

H (High / Repeatable) Mode: When the jumper connects the two pins labeled "H" (or sometimes "L" on some boards), the sensor operates in repeatable trigger mode. The timer resets with each new detection.
L (Low / Single) Mode: When the jumper connects the two pins labeled "L", the sensor operates in single trigger mode. The output goes HIGH once for the set duration and will not re-trigger until the timer expires, regardless of continued motion.

For the HW-416-B, the typical placement is: Jumper on left pair = Single mode; Jumper on right pair = Repeatable mode. However, always check PCB marking.

Connecting to Arduino (5V logic)

| HW-416-B | Arduino Uno/Nano | | :--- | :--- | | VCC | 5V | | OUT | Digital Pin 2 (or any) | | GND | GND |

Simple Arduino Code Sketch:

int pirPin = 2;
int ledPin = 13;
void setup() 
Serial.begin(9600);
pinMode(pirPin, INPUT);
pinMode(ledPin, OUTPUT);

void loop() 
int motionState = digitalRead(pirPin);
if (motionState == HIGH) 
digitalWrite(ledPin, HIGH);
Serial.println("Motion Detected!");
delay(100);
 else 
digitalWrite(ledPin, LOW);

Limitations & cautions

No directional/velocity measurement—only motion presence via thermal change.
Susceptible to sudden environmental temperature shifts, drafts, and moving heat sources (e.g., HVAC vents).
False positives possible from direct sunlight, heating pipes, or moving curtains.
Performance degraded through glass or behind insulating materials; IR-transparent openings required.

Conclusion

The HW-416-B PIR sensor 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.

When designing your next motion-sensing project, remember:

Always power cycle and allow 60s warm-up before testing.
Use a transistor driver for loads > 100 mA.
Adjust sensitivity to the minimum needed to avoid false triggers.

For exact timing schematics and gerber files, visit the open-hardware repository linked on this page. Bookmark this guide as your go-to reference for the hw-416-b pir sensor datasheet.

Last updated: October 2025. Specifications are based on Revision 2.3 of the HW-416-B board. Always verify with your specific module version.

Comprehensive Guide to the HW-416-B PIR Motion Sensor The HW-416-B is a compact, highly efficient Passive Infrared (PIR) sensor module widely used in DIY electronics, security systems, and automated lighting projects. Often categorized alongside the popular HC-SR501, the HW-416-B is favored for its smaller footprint and reliable performance in detecting human or animal movement.

This guide serves as a functional datasheet and implementation manual for engineers and hobbyists alike. 1. Technical Specifications

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 Operating Voltage 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 The HW-416-B is a standard Passive Infrared (PIR)

The HW-416-B features a simple 3-pin interface, making it compatible with almost any microcontroller (Arduino, ESP32, Raspberry Pi). VCC: Power input (4.5V to 20V).

OUT: Digital output. High (3.3V) when motion is detected; Low (0V) when idle. GND: Ground connection. 3. Onboard Adjustments

Unlike some micro-sensors, the HW-416-B typically includes two potentiometers (trimpots) on the back of the PCB to fine-tune its behavior:

Sensitivity Adjust (SENS): Turning this clockwise increases the detection distance (up to 7 meters). Counter-clockwise reduces it (down to ~3 meters), which is useful for small indoor spaces to avoid false triggers.

Time Delay Adjust (TIME): 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)

On the corner of the module, you will find three solder pads or a jumper labeled H and L.

Non-repeatable Trigger (L): After the sensor output goes high, it stays high for the duration of the delay and then goes low, regardless of whether motion continues.

Repeatable Trigger (H): If motion is detected while the output is already high, the "delay timer" restarts. The output stays high as long as there is continuous movement. 5. Typical Applications

Intruder Alarms: Activating a buzzer or sending a notification when movement is detected in a restricted area.

Automatic Lighting: Turning on LED strips or lamps when someone enters a room and turning them off after they leave.

Wildlife Cameras: Triggering a camera shutter or video recording when an animal passes by.

Energy Management: Turning off PC monitors or HVAC systems in unoccupied offices. 6. Integration Tips

Warm-up Time: The sensor requires an initialization period of about 30 to 60 seconds after powering up. During this time, the sensor may output random signals.

Avoid Heat Sources: Do not point the sensor toward heaters, air conditioners, or direct sunlight, as rapid temperature changes can cause false positives.

Enclosure: The Fresnel lens (the white plastic dome) must remain unobstructed. If mounting in a box, ensure the dome protrudes through a cutout. Critical Note: Do not connect the output directly

Are you planning to interface this sensor with an Arduino or an ESP32 for your project?

Introduction

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.

Features

High sensitivity and reliability
Low power consumption
Adjustable sensitivity and delay time
Digital output signal
Compact size (typically 32mm x 24mm x 10mm)

Specifications

Operating Voltage: 3.3V - 5V
Current Consumption: 50μA (typical)
Detection Range: 5-7 meters (adjustable)
Detection Angle: 110° (horizontal), 60° (vertical)
Output Signal: Digital high/low signal (VCC/0V)
Delay Time: Adjustable (typically 2-10 seconds)
Temperature Range: -20°C to +80°C

Pinout and Connections

The HW-416-B PIR sensor module typically has three pins:

VCC: Power supply (3.3V - 5V)
OUT: Digital output signal (high/low)
GND: Ground

Usage Guidelines

Mounting: Mount the sensor at a height of 2-3 meters, facing downwards to minimize false triggers.
Sensitivity Adjustment: Adjust the sensitivity potentiometer to optimize detection range and minimize false triggers.
Delay Time Adjustment: Adjust the delay time potentiometer to set the desired delay time after detection.
Interfacing: Connect the OUT pin to a microcontroller or digital circuit to process the detection signal.

Datasheet Resources

For more detailed information, you can download the HW-416-B PIR sensor datasheet from the following resources:

[Insert links to datasheet PDFs or manufacturer's websites]

Troubleshooting Tips

False Triggers: Adjust sensitivity and delay time to minimize false triggers.
No Detection: Check power supply, pin connections, and sensor mounting.
Interference: Use shielding or filtering to minimize electromagnetic interference.

Understanding the HW-416-B PIR Sensor: A Comprehensive Guide

The HW-416-B is a widely used Passive Infrared (PIR) motion sensor module, favored by hobbyists and engineers alike for its compact size, low power consumption, and reliability. Often found in DIY security systems, automated lighting, and robotics, this sensor is a staple for detecting human presence.

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 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

The module typically features a 3-pin interface, making it compatible with Arduino, ESP32, Raspberry Pi, and other microcontrollers. VCC: Power input (4.5V to 20V).

OUT: Digital output. It sends a High (3.3V) signal when motion is detected and remains Low (0V) when idle. GND: Ground connection.