Datasheet
SG33 - VOC & eCO2 (CCS811)
Front
Back
☒
CHIP
Main Category Sensor
Sub Category Gas
Introduced 1 January 2017
Current version 1.0.0
Current version date 1 January 2017
Dimensions
Size 2x2U (32x32mm)
Weight 3 g
Height 2.6/1.0/0mm
Main Chip Set
Main Chip CCS811
I²C Configuration
Default Address 0x5A
Alternative Addresses 0x5B
Change Setting Solder
XinaBox Datasheet SG33 - VOC & eCO2
Contents
1 Overview
1.1 Product Highlights
1.2 Applications
2 Specifications
3 External Links
Overview
This xCHIP is equipped to sense a variety of Volatile Organic Compounds (VOCs) (https://en.wikip
edia.org/wiki/Volatile_organic_compound). This ☒CHIP is based on the CCS811 which is an ultra-
low power digital gas sensor which integrates a metal oxide (MOX) gas sensor to detect a wide
range of Volatile Organic Compounds (VOCs), for indoor air quality monitoring, a micro-controller
unit (MCU), and an I
2
C interface.
CCS811 is based on ams unique micro-hotplate technology which enables a highly reliable solution
for gas sensors, very fast cycle times and a significant reduction in average power consumption.
The integrated MCU manages the sensor drive modes and raw sensor data measured while
detecting VOCs. The I
2
C digital interface significantly simplifies the hardware and software design,
enabling a faster time to market. CCS811 supports intelligent algorithms to process raw sensor
measurements to output a TVOC value or equivalent CO2 (eCO2) levels, where the main cause of
VOCs is from humans. CCS811 supports multiple measurement modes that have been optimized
for low-power consumption during an active sensor measurement and idle mode extending battery
life in portable applications.
Product Highlights
Integrated MCU
On-board processing
Standard I
2
C digital interface
Optimised low-power modes
Low component count
Proven technology platform
Applications
Smart Phones
Wearables
Home and Building Automation
Specifications
Based on the CCS811 From AMS.
5 modes of operation.
1. Mode 0: Idle, low current mode.
2. Mode 1: Constant power mode, IAQ measurement every second.
3. Mode 2: Pulse heating mode IAQ measurement every 10 seconds.
4. Mode 3: Low power pulse heating mode IAQ measurement every 60 seconds.
5. Mode 4: Constant power mode, sensor measurement every 250ms.
Early-Life Use (Burn-In) for 48 hours in the selected mode.
eCO
2
The equivalent CO2 (eCO2) output range for CCS811 is from 400ppm to 8192ppm.
TVOC The Total Volatile Organic Compound (TVOC) output range for CCS811 is from
0ppb to 1187ppb.
Temperature and Humidity Compensation.
Interrupt and Interrupt on Threshold.
Automatic Baseline Correction.
Manual Baseline Correction.
External Links
Documents
CCS811 From AMS (http://ams.com/documents/20143/36005/CCS811_DS000459_6-00.pdf)
GitHub
SG33 on GitHub (https://github.com/xinabox/xSG33)