Unlike some "mini" PIR sensors that have fixed settings, the HW-416B usually features two potentiometers (or specific solder pads) that allow for:
The potentiometer labeled or Sensitivity allows you to adjust the detection range from approximately 3 meters up to 7 meters. Turning it clockwise increases the distance, while counter-clockwise decreases it. B. Time Delay Adjustment
Typically less than 65µA, making it suitable for battery-powered devices. Output Signal: hw416b pir sensor datasheet better
| Parameter | Typical Value | |-----------|----------------| | Operating Voltage | 5V – 20V (but 5V works fine) | | Standby Current | < 50 µA | | Output High | 3.3V (not 5V – be careful) | | Output Low | 0V | | Delay Time | 5 – 300 seconds (adjustable) | | Sensitivity | 3 – 7 meters | | Trigger Modes | Single (non-repeatable) or Repeatable |
The HW-416B has two small yellow jumpers and three pins labeled and H . Unlike some "mini" PIR sensors that have fixed
In this mode, the output remains HIGH as long as motion is continuously detected. Each time motion is detected, the delay timer resets. The output will only go LOW after the delay period has elapsed without any motion detection.
In this mode, the output goes HIGH when motion is detected. After the specified delay time (set by the potentiometer), the output goes LOW—even if the object remains in motion. The output stays LOW for some time before going HIGH again if the object continues moving, creating a pulsed output pattern. Time Delay Adjustment Typically less than 65µA, making
The is a variant of the popular HC-SR501 passive infrared (PIR) motion sensor module. While often marketed as a standalone part, it is technically the PCB designation for many HC-SR501 units. Its primary "better" qualities lie in its wide voltage range and customizable trigger modes , which allow it to integrate into both simple battery-powered gadgets and complex home automation systems. 🛠️ Key Technical Specifications
Occupancy detection, lighting control, and any scenario where you want the output to stay active while people are present.
This is the main trade-off.
Connect to 5V (or 3.3V if the sensor supports low voltage operation). Connect GND to GND. Connect OUT to a Digital Pin (e.g., Pin 2). 4. Better Understanding of Adjustments: Pots and Jumper The HW416B’s strength lies in its configurability. A. Sensitivity Adjustment (Distance)
Unlike some "mini" PIR sensors that have fixed settings, the HW-416B usually features two potentiometers (or specific solder pads) that allow for:
The potentiometer labeled or Sensitivity allows you to adjust the detection range from approximately 3 meters up to 7 meters. Turning it clockwise increases the distance, while counter-clockwise decreases it. B. Time Delay Adjustment
Typically less than 65µA, making it suitable for battery-powered devices. Output Signal:
| Parameter | Typical Value | |-----------|----------------| | Operating Voltage | 5V – 20V (but 5V works fine) | | Standby Current | < 50 µA | | Output High | 3.3V (not 5V – be careful) | | Output Low | 0V | | Delay Time | 5 – 300 seconds (adjustable) | | Sensitivity | 3 – 7 meters | | Trigger Modes | Single (non-repeatable) or Repeatable |
The HW-416B has two small yellow jumpers and three pins labeled and H .
In this mode, the output remains HIGH as long as motion is continuously detected. Each time motion is detected, the delay timer resets. The output will only go LOW after the delay period has elapsed without any motion detection.
In this mode, the output goes HIGH when motion is detected. After the specified delay time (set by the potentiometer), the output goes LOW—even if the object remains in motion. The output stays LOW for some time before going HIGH again if the object continues moving, creating a pulsed output pattern.
The is a variant of the popular HC-SR501 passive infrared (PIR) motion sensor module. While often marketed as a standalone part, it is technically the PCB designation for many HC-SR501 units. Its primary "better" qualities lie in its wide voltage range and customizable trigger modes , which allow it to integrate into both simple battery-powered gadgets and complex home automation systems. 🛠️ Key Technical Specifications
Occupancy detection, lighting control, and any scenario where you want the output to stay active while people are present.
This is the main trade-off.
Connect to 5V (or 3.3V if the sensor supports low voltage operation). Connect GND to GND. Connect OUT to a Digital Pin (e.g., Pin 2). 4. Better Understanding of Adjustments: Pots and Jumper The HW416B’s strength lies in its configurability. A. Sensitivity Adjustment (Distance)