Hw-416-b Pir Sensor Datasheet

This comprehensive guide serves as an expanded technical datasheet and implementation manual for the HW-416-B module. Technical Specifications and Features

: If someone remains in the detection area, the output stays high until they leave.

Connecting the HW-416-B to an Arduino is straightforward because its 3.3V output is compatible with most digital pins. HW-416-B Pin Arduino Pin Digital Pin 2 Example Code Snippet HW-416B: PIR MOTION SENSOR FOR ARDUINO

Complete Technical Guide and Datasheet Analysis for the HW-416-B PIR Motion Sensor

Connecting the HW-416-B to your microcontroller is straightforward. hw-416-b pir sensor datasheet

pir = Pin(2, Pin.IN) # Replace '2' with the GPIO pin you're using led = Pin(25, Pin.OUT)

This knob adjusts the detection distance. Turning it clockwise increases the sensitivity (up to ~7 meters), while counter-clockwise decreases it. 4.2 Time Delay Adjustment (Potentiometer)

Passive Infrared Sensor - an overview | ScienceDirect Topics

Clockwise rotation increases the duration the output pin stays "HIGH" after detecting motion. Counter-clockwise rotation decreases the time down to roughly 5 seconds. How the HW-416-B Works This comprehensive guide serves as an expanded technical

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

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

: To prevent false triggers, do not place the sensor directly facing air conditioners, heaters, or direct sunlight.

Turning off desk monitors, lights, or exhaust fans when a room becomes vacant. HW-416-B Pin Arduino Pin Digital Pin 2 Example

Most cheap PIR sensors are designed to run on 5 V, and the HW‑416‑B is no exception. However, its internal electronics actually operate at 3 V, and the module includes a voltage regulator to handle a range of input voltages.

: If your microcontroller operates at 3.3V (such as the Argon or other 3.3V-only boards), you can supply power through the dedicated 3.3V input pin rather than the standard 5V input. When using 3.3V, the default 5V power input pin on the sensor should be left disconnected.

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)