Hw-416-b Pir Sensor Datasheet Link

Getting Started with the HW-416-B PIR Motion Sensor: A Complete Guide

GPIO.setmode(GPIO.BCM) PIR_PIN = 2 GPIO.setup(PIR_PIN, GPIO.IN)

| Feature | HW-416-B | HC-SR501 | |------------------|------------------|------------------| | Core chip | BIS0001 (or clone) | BIS0001 | | Voltage range | 4.5–20V | 5–20V | | Trigger modes | L / H jumper | L / H jumper | | Output voltage | 3.3V | 3.3V | | Availability | Lower cost, generic | Widely used | hw-416-b pir sensor datasheet

When the environment is static, both slots receive the same amount of IR radiation. The differential cancelation results in a net zero signal.

Because of its small size (roughly 32mm x 24mm) and low power consumption, the HW-416-B is the go-to for: Getting Started with the HW-416-B PIR Motion Sensor:

2.5 seconds (default time the sensor ignores movement after an output cycle)

A PIR (Passive Infrared) sensor detects changes in incoming infrared radiation within its field of view. PIR sensors are specifically tuned to the frequency of IR that corresponds to normal human body temperature, making them highly effective motion detectors for people and animals. The sensor operates “passively”—it does not emit any energy but instead monitors the ambient infrared environment for changes caused by moving heat sources. PIR sensors are specifically tuned to the frequency

| Application Category | Use Cases | |---------------------|-----------| | | Burglar alarms, motion-triggered cameras, perimeter monitoring | | Smart Lighting | Automatic hallway/staircase lights, bathroom fans, garage lighting | | Home Automation | Occupancy detection, energy-saving systems, smart room control | | Industrial Automation | Machine safety zones, presence monitoring, automated doors | | STEM Education | Arduino/Raspberry Pi learning projects, robotics, IoT demonstrations | | Energy Management | Classroom/office lighting control, storage monitoring |

When the room is empty, both windows receive the same amount of ambient infrared radiation. The differential voltage output between the two windows is zero.

Repeatable Trigger (Default) / Non-repeatable Trigger Operating Temperature: -15°C to +70°C

The board also uses a to convert the input voltage (whether 5V or higher) down to 3.3V for the internal logic circuitry.