Hw-416-b Pir Sensor Datasheet
| Parameter | Min | Typ | Max | Unit | |----------------------|------|------|-------|-------| | Supply voltage | 4.5 | 5 | 20 | V | | Output high voltage | 2.8 | 3.3 | 3.4 | V | | Output low voltage | 0 | 0.4 | 0.6 | V | | Output current (max) | - | - | 100 | mA | | Standby current | - | 0.05 | 0.1 | mA | | Operating temp | -20 | 25 | +80 | °C | | Delay time range | 0.5 | - | 200 | sec | | Detection range | 3 | 5 | 7 | m |
Turning on LED strips or lamps when someone enters a room and turning them off after they leave.
| Pin name | Function | | :--- | :--- | | | Power supply (5 V typical) | | OUT | Digital output (HIGH when motion is detected) | | GND | Ground | hw-416-b pir sensor datasheet
#define PIR_PIN 2 // OUT pin connected to digital pin 2 #define LED_PIN 13 // onboard LED for visual indication
Ground connection (Connect to the system common ground). Onboard Adjustments (Potentiometers) | Parameter | Min | Typ | Max
The following code configures the Arduino to monitor the HW-416-B and trigger the built-in LED (Pin 13) when motion occurs.
The white dome is a Fresnel lens . It focuses infrared light from multiple angles onto the tiny pyroelectric sensor inside. PIR Motion Sensor HW416B - Tayda Electronics The white dome is a Fresnel lens
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:
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The (often cross-referenced with the HC-SR501 ) is a versatile, low-cost passive infrared module widely used in DIY electronics, security systems, and automated lighting. This article provides a comprehensive technical overview and datasheet-style guide for the HW-416-B. Technical Specifications