Built around the STHS34PF80 sensor from STMicroelectronics, this board is designed to give engineers the ability to easily experiment and develop applications with the sensor. The board measures 1" x 1" and includes two Qwiic sensors, four mounting holes, six PTH pins (3V3, GND, SCL, SDA, CS, INT), and a red power LED.

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.

Features and Specifications:

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

Documentation:

Package Includes:

1 x SparkFun SEN-22494 Human Presence and Motion Sensor - STHS34PF80 (Qwiic)

SparkFun SEN-22494 Human Presence and Motion Sensor - STHS34PF80 (Qwiic)

Brand:: Sparkfun
Product Code: :SFE-SEN-22494-Human
Reward Points: :19
Availability: :In Stock

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Price in reward points: 1867
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