Hw-416-b Pir Sensor Datasheet
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.
Many buyers confuse the HW-416-B with the HC-SR501. Here is a side-by-side comparison based on typical datasheet values:
| Feature | HW-416-B | HC-SR501 | | :--- | :--- | :--- | | Size | Smaller (32x24mm) | Larger (32x24mm approx, thicker) | | Quiescent Current | < 50 µA | < 65 µA | | Adjustable Time Delay | Usually fixed or very short (2.5s) | Yes (0.3s – 600s) | | Retriggering Mode | Internal (automatic) | Jumper-selectable (single/retrigger) | | Best for | Battery-powered, short-lived triggers | Security lights, long delays |
Verdict: Choose the HW-416-B for low-power IoT sensors or motion-activated sound effects. Choose the HC-SR501 for hallway lights or alarm systems requiring a long output pulse. hw-416-b pir sensor datasheet
If you want, I can convert this into a printable one-page PDF datasheet layout, produce schematic wiring examples, or provide sample Arduino and Raspberry Pi code snippets for the HW-416-B.
The HW-416-B module features a standard 3-pin male header (2.54mm pitch). The pin labeling is often printed on the back of the PCB.
| Pin Number | Pin Name | Description | | :--- | :--- | :--- | | 1 | VCC | Power input (5V – 20V DC) | | 2 | OUT | Digital output: HIGH when motion detected, LOW when idle | | 3 | GND | Ground (0V) | For the HW-416-B, the typical placement is: Jumper
Important Wiring Note:
Unlike some sensors, the HW-416-B requires a warm-up period after power-up. During the first 10–60 seconds, the output may toggle randomly. This is normal behavior as the sensor calibrates.
The HW-416-B is one of the most popular and cost-effective Passive Infrared (PIR) motion sensor modules available on the market. Often recognized by its white circular housing and three-pin male header, this board is a staple in Arduino, Raspberry Pi, and ESP32 projects. Despite its widespread use, finding a consolidated, accurate datasheet for the HW-416-B can be challenging, as it is frequently confused with the HC-SR501.
This article serves as a complete HW-416-B PIR sensor datasheet, covering every technical detail you need: electrical characteristics, pin configuration, sensitivity adjustment, time delay settings, wiring diagrams, and troubleshooting tips. The HW-416-B module features a standard 3-pin male
In the world of DIY electronics, few components offer as much "bang for your buck" as the Passive Infrared (PIR) sensor. The HW-416-B is a popular iteration of the classic HC-SR501 design, repackaged into a smaller, more breadboard-friendly form factor.
While it may look like a simple circuit board with a white dome, the HW-416-B is actually a sophisticated thermal radar. Let’s dive into the datasheet secrets that make this tiny sensor a powerhouse for home automation and security.
The HW-416-B features two adjustable potentiometers on the PCB:
| Component | Label | Function |
|-----------|-------|----------|
| Left Potentiometer | TIME | Adjusts output delay time (Tx) after motion stops. CW = longer delay. |
| Right Potentiometer | SENS | Adjusts detection sensitivity/distance. CW = more sensitive / longer range. |
| Jumper (JP1) | Trigger Mode | H = Repeatable trigger (retriggering resets delay timer).
L = Single trigger (output turns off after delay, regardless of continued motion). |
⚠️ Note: The HW-416-B uses two potentiometers. On some boards, the left is SENS and right is TIME. Verify with your specific board silkscreen or by testing.