Overview
The Yahboom Human Body Infrared Sensor Module (Yahboom Universal Series Module) is a passive infrared (PIR) sensor module that detects human body activity using the pyroelectric principle. When a person enters the detection area, the module outputs a high-level signal. A Fresnel lens filter on the surface helps improve recognition sensitivity and reduce the effect of environmental interference. The module design supports three connection methods: alligator clip, DuPont line, and PH2.0 cable.
For product selection and after-sales support, contact https://rcdrone.top/ or email [email protected].
Key Features
- Human body activity detection based on the pyroelectric principle; outputs a high-level signal when a person enters the detection area.
- Fresnel lens filter helps reduce environmental interference and improve recognition sensitivity.
- Low power consumption, wide angle, long distance reception (as stated).
- Three interface methods for flexible wiring: alligator clip connection, DuPont line connection, and PH2.0 cable connection.
- Side row female interface advantages: not easy to short circuit when using alligator clips; convenient for multi-level connection; does not affect the user experience of the button module.
- Four-corner alligator clip interface: clips are far apart at the four corners, not easy to short, suitable for fast connection.
- PH2.0 “foolproof” interface: corresponding insertability for convenient connection.
Specifications
| Module type | Human Body Infrared Sensor Module (Passive Infrared sensor) |
| Series | Yahboom Universal Series Module |
| Detection principle | Pyroelectric principle (PIR) |
| Optics | Fresnel lens filter |
| Connection methods | Alligator clip / DuPont line / PH2.0 cable |
| Pin labels (header) | VCC / OUT / NC / GND |
| Pad labels (corners) | VCC / OUT / NC / GND |
| Board marking | YB-HMV14, V2R1.0 |
| Interface assembly note | The module has been soldered to the DuPont interface and PH2.0 cable interface by default. |
Applications
- Corridor switches
- Visitor notification devices
- Human body induction lamp
- Somatosensory welcome device
Recommended connection scenarios
- Alligator clip connection: Micro:bit board or Micro:bit expansion board
- DuPont line connection: Raspberry Pi, STM32 and other common connection methods
- PH2.0 cable connection: robot kits and sensor expansion boards
What's Included
- Human body infrared sensor module × 1
Manuals / Resources
- Official tutorial: https://www.yahboom.net/study/Passive-Infrared
- Learning materials (as provided by the manufacturer): Arduino code, microbit code, STM32 code, Introduction of module.doc, Introduction of module.pdf, microbit-Welcome-device.he, Welcome device.docx, Welcome device.pdf
Details

The YB-HMV14 PIR module detects human motion and outputs a digital high level when activity is sensed.

Three wiring styles are supported for quick prototyping: alligator clips, DuPont jumper wires, or a PH2.0 cable.

Alligator-clip pads at the four corners make fast, low-risk connections on Micro:bit setups.

DuPont header pins are ideal for Raspberry Pi, STM32, and breadboard-style builds.

The keyed PH2.0 interface keeps polarity consistent for robot kits and sensor hubs.



The module integrates easily with common microcontroller boards across Arduino- and Micro:bit-style ecosystems.

A Fresnel lens concentrates infrared changes from a moving person to improve sensitivity and reduce interference.

Use it to trigger an induction lamp that turns on lighting only when motion is detected.

A simple welcome/visitor alert project can be built by linking the sensor output to a buzzer or display.



Clearly labeled VCC/OUT/NC/GND pins simplify wiring and reduce connection mistakes.


OUT provides a single digital signal, while VCC and GND supply power for the module.
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