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2022-25-04
User Guide for XENSIV™ KIT PAS CO2
Introduction
The
XENSIV™ PAS CO2
sensor integrates on the PCB the PAS transducer, including a detector, infrared source and
optical filter; a microcontroller for signal processing and algorithms; and a MOSFET chip to drive the infrared
source. The integrated microcontroller runs ppm calculations as well as advanced compensation and
configuration algorithms.
Key benefits
•
Space savings in customers’ end products
•
High-quality data and compliance with smart building standards
•
Cost-effective high-volume assembly and easy system integration
•
Plug and play for fast design-to-market
•
Customer flexibility thanks to a variety of configuration options
Key features
•
Exceptionally small form factor (14 x 13.8 x 7.5 mm
3
) sensor
•
Accurate and robust performance at ppm level (±30 ppm ±3 percent of reading)
1
•
Advanced compensation and self-calibration algorithms
•
Configurable sampling rate via UART and I
2
C interfaces
2.3.2
XENSIV™ DPS368 barometric pressure sensor
The XENS
IV™
DPS368 is a miniaturized digital barometric air pressure sensor robust against water, dust and
humidity. It offers high accuracy and low current consumption and is capable of measuring both pressure and
temperature. The pressure sensor element is based on a capacitive sensing principle which guarantees high
precision during temperature changes. The small package makes the
XENSIV™
DPS368 ideal for mobile
applications and wearable devices. Due to its robustness, it can be used in harsh environments.
Key benefits
•
Suitable even for harsh environments
•
Easy to integrate and to operate; allows fast design-to-market
•
High precision makes the
XENSIV™
DPS368 an ideal device for applications such as fall detection, step
counting, door or window opening, and environmental scene monitoring in general
•
Variety of configurations allows user to choose optimum sensor settings for target application
•
In combination with the
XENSIV™ PAS CO2
, environmental pressure measured by the
XENSIV™
DPS368
is used to increase CO
2
ppm accuracy of the
XENSIV™ PAS CO2
sensor
Key features
•
IPx8 certified: temporary immersion at 50 m for 1 hour
•
Interface: I
2
C and SPI (both with optional interrupt)
1
Current engineering samples (early development samples) deviate from these specifications and are meant primarily to demonstrate
functionality.
