For more detailed integration steps, you can explore guides from Instructables or technical documentation from snippet to test this sensor? Raspberry Pi Projects
The output goes high, then low, then high again if motion continues. This is useful for precise time-based triggering. 5. Wiring the HW-416-B to Arduino
The HW-416-B utilizes a pyroelectric sensor to detect infrared radiation variations emitted by moving objects, primarily humans and animals. It is a variant of the classic HC-SR501 PIR sensor module, sharing similar operational logic but offering a more compact form factor, making it ideal for space-constrained projects like smart lighting, automated alarms, and robotics. Key features include:
The HW-416-B PIR sensor module typically has three pins: hw-416-b pir sensor datasheet
Increases detection distance (up to ~7 meters).
Understanding the electrical and environmental limits of the HW-416-B is crucial for designing safe and long-lasting circuits. Specification 4.5V to 20V DC Can be powered by standard 5V or 12V rails Static Current Consumption < 50µA to 65µA Highly efficient for battery applications Output Signal Level High: 3.3V / Low: 0V Compatible with 3.3V and 5V microcontrollers Detection Distance Up to 3 to 7 meters Adjustable via onboard potentiometer (model dependent) Detection Angle < 100° to 120° cone Conical field of view shaped by the Fresnel lens Delay Time 0.5 seconds to 200 seconds Adjustable via onboard potentiometer Blockade Time 2.5 seconds Default blind period after output goes low Trigger Modes L (Non-repeatable) / H (Repeatable) Selected via jumper on the PCB Operating Temperature -15°C to +70°C Suitable for indoor and sheltered outdoor use PCB Dimensions Approx. 32mm x 24mm Standard standard PIR module footprint 3. Pinout and Hardware Configuration
Note: Always verify the silk-screen markings on your specific HW-416-B board, as manufacturing variances can sometimes invert the VCC and GND positions. Onboard Adjustments For more detailed integration steps, you can explore
The HW-416-B is a passive infrared (PIR) motion sensor module based on the HC-SR501 design. It detects changes in infrared radiation (body heat) within its field of view. It is widely used for human/animal motion detection in security systems, automatic lighting, and IoT projects.
if (motionState == HIGH) digitalWrite(ledPin, HIGH); Serial.println("Motion Detected!"); delay(100); else digitalWrite(ledPin, LOW);
Adjustable (typically from 0.5 seconds up to several minutes via onboard potentiometer) Key features include: The HW-416-B PIR sensor module
The (frequently cross-referenced with the ubiquitous HC-SR501 framework ) is a highly efficient, low-cost passive infrared detector designed to sense human or animal movement. Based on the robust BISS0001 micro-power PIR IC decoder , this board integrates an onboard pyroelectric element, signal-conditioning logic, and a multi-zone Fresnel lens dome . It is fully compatible with popular 3.3V and 5V microcontrollers like Arduino, ESP32, ESP8266, and Raspberry Pi. 📋 Comprehensive Technical Specifications
Once motion is detected, the output stays HIGH for the set delay and then goes LOW, even if movement continues.