Pir Sensor Datasheet Better: Hw416b

Overview

  1. High sensitivity: The sensor has a high sensitivity to human body radiation, allowing it to detect movement even at a distance.
  2. Low noise: The sensor has a low noise output, which reduces interference and false triggers.
  3. Digital output: The sensor provides a digital output signal, making it easy to interface with microcontrollers.

The back of the PCB usually has terrible printing. Use this mapping:

The HW416B outputs 3.3V, which is safe for 5V Arduinos, but 5V logic can damage 3.3V-only boards. To be better safe than sorry: hw416b pir sensor datasheet better

two orange potentiometers

The HW-416B has (trimpots).

Note on Datasheets:

Since "HW416B" appears to be a generic batch code, you likely won't find an official PDF from a major manufacturer (like TI or Panasonic). For technical specs, look for datasheets regarding "Mini PIR Motion Sensor Module" or "AM312" (a common chip used on these small boards), as the specs will be nearly identical. Overview

Detection Range:

Adjustable from 3 to 7 meters using an onboard potentiometer. Detection Angle: Approximately 100° to 120° cone angle. High sensitivity : The sensor has a high

Overview

  1. High sensitivity: The sensor has a high sensitivity to human body radiation, allowing it to detect movement even at a distance.
  2. Low noise: The sensor has a low noise output, which reduces interference and false triggers.
  3. Digital output: The sensor provides a digital output signal, making it easy to interface with microcontrollers.

The back of the PCB usually has terrible printing. Use this mapping:

The HW416B outputs 3.3V, which is safe for 5V Arduinos, but 5V logic can damage 3.3V-only boards. To be better safe than sorry:

two orange potentiometers

The HW-416B has (trimpots).

Note on Datasheets:

Since "HW416B" appears to be a generic batch code, you likely won't find an official PDF from a major manufacturer (like TI or Panasonic). For technical specs, look for datasheets regarding "Mini PIR Motion Sensor Module" or "AM312" (a common chip used on these small boards), as the specs will be nearly identical.

Detection Range:

Adjustable from 3 to 7 meters using an onboard potentiometer. Detection Angle: Approximately 100° to 120° cone angle.