사람 검출 및 모션 센서 -STHS34PF80, I2C
(SparkFun Human Presence and Motion Sensor
- STHS34PF80 (Qwiic))
개요
- 본 제품은 사람 검출 및 모션 센서 -STHS34PF80, I2C 입니다.
- ST사의 STHS34PF80 센서를 기반으로 디자인된 제품입니다.
- 80도의 FOV를 가지고 있습니다.
특징
-
Breakout Board
- Dimensions: 1" x 1"
- Two Qwiic Connectors
- I2C Address (7-bit): 0x5A (Default)
- Four Mounting Holes:
- 4-40 screw compatible
- Six PTH Pins
- 3V3, GND, SCL, SDA, CS, INT
- Power LED (Red)
STHS34PF80 Features
- Voltage Range: 1.7 to 3.6V
- Current Draw: 10µA
- Interfaces: I²C or SPI
- Optical wavelength: 5 to 20µm
- Range: 4m (objects 70 x 25 cm² in size)
- Built-in Detection Algorithms:
- Identify stationary objects
- Distinguish between stationary and moving objects
- Field of View: 80°
- Output Data Rate: 0.25 to 30Hz
- IR sensitivity: 2000 LSB/°C
- RMS noise: 25 LSBrms
- Operating Temperature: -40 to 85°C (default gain mode)
- Sensor accuracy: ±0.3°C (local)
- One-shot mode
- Factory calibrated
-
The STHS34PF80 sensor, from ST Microelectronics, is designed to measure the precise black-body radiation (as described by Planck's law) of an object; as well as monitor ambient temperature conditions within its 80° field of view. The sensor is composed of a matrix of floating vacuum thermal transistors MOS split into two parts, one exposed to IR radiation and the other one shielded. The differential reading between the segments, allows the sensor to remove self-heating effects. The STHS34PF80 also incorporates algorithms to detect and discriminate between stationary and moving objects. These features enable the sensor to work as a human presence and motion sensor in different applications such as alarm systems, anti-intruder systems, smart lighting, and room occupancy.
The sensor can operate in multiple lighting conditions and is unaffected by visible light or other bands thanks to the 5 to 20µm optical band-pass filter. The STHS34PF80 has an output data rates between 0.25 to 30 Hz and an available single-shot, which are accessed through its I²C/SPI interface.