SparkFun Environmental Sensor Combo Breakout – ENS160, BME280 (Qwiic)

With the well-liked ENS160 and BME280 ICs, the SparkFun ENS160/BME280 Environmental Combo Breakout takes care of all your atmospheric-quality sensor needs. A variety of environmental variables, such as the AQI, TVOCs, equivalent CO2 (or eCO2) levels, barometric pressure, humidity, and temperature, are provided by this special breakout. Using our convenient Qwiic system, all communication is done only via I2C to make using this breakout even simpler. However, we still have broken-out pins with a 0.1-inch spacing if you would rather use a breadboard.
The popular CCS811 sensor has been replaced by the ENS160, which measures total volatile organic chemicals in parts per billion (PPB) and equivalent CO2 (eCO2) in parts per million (PPM). An additional feature of the sensor is the Air Quality Index (AQI). If the ENS160 can access the current temperature and humidity, it also includes a capability that lets it adjust its readings. Fortunately, the BME280 offers temperature, barometric pressure, and humidity! As a result, the sensors can cooperate to provide us with measurements that are more accurate than they otherwise could.
Features

2x Qwiic-Enabled Connectors

Input Voltage Range

Typically3.3Vvia Qwiic cable

ENS160

I2C Addresses:0x53 (Default)or 0x52
Wide Operating Ranges

VDD: 1.71 1.98V
VDDIO: 1.71V to 3.6V
Temperature: -40C to +85C
Humidity: 5% to 95% (non-condensing)

IAQ standard compliance for AQI, eCO2, and TVOC

Air Quality Index – Umweltbundesamt (AQI-UBA)

Range: 1 to 5
Resolution: 1

Equivalent Carbon Dioxide (eCO2)

Range: 400 to 65,000 ppm
Resolution: 1 ppm

Total Volatile Organic Compound (TVOC)

Range: 0 to 65,000 ppb
Resolution: 1 ppb

Immunity to humidity and ozone

Superior output stability over the whole temperature and relative humidity operating ranges
Effective ozone compensation

Independent sensor heater control for highest VOC selectivity and outstanding background discrimination

BME280

VDD: 1.71V to 3.6V
VDDIO: 1.2V to 3.6V
I2C Addresses:0x77 (Default)or 0x76
Temperature

Operating Range: -40C to 85C
Full accuracy to 0.5C from -0C to 65C
Resolution 0.01C

Humidity

Operating Range: 0% to 100% RH
Accurate to 3% from 20% -80% RH
Resolution: 0.008%RH

Pressure

Operating Range: 30,000 Pa to 110,000Pa
Absolute Accuracy of 100Pa
Relative Accuracy of 12Pa
Resolution: 0.18Pa

Altitude Range

0ft to 30,000ft (9.2km)
Relative accuracy of 3.3ft (1m) at sea level, 6.6 (2m) at 30,000ft

Power LED

1.8V AP2127K Voltage Regulator (for ENS160)

2.2k Pull-up Resistors

Jumpers

Power LED
I2C Pullup Resistors
Selectable Addresses

ENS160:0x53 (Default)or 0x52
BME280:0x77 (Default)or 0x76

Board Dimensions: 1.0in. x 1.0in. (25.4mm x 25.4mm)

Weight: 2.50g

Resources

Schematic

Eagle Files

Board Dimensions

Hookup Guide

Datasheets

ENS160
BME280

Arduino Libraries

ENS160
BME280

Micro OLED Example

Qwiic Info Page

GitHub Hardware Repo

FAQs:
Q: What environmental parameters does the SparkFun Environmental Combo Breakout measure?
A: The breakout board measures air quality (eCO2, TVOCs, AQI), barometric pressure, humidity, and temperature.
Q: What sensors are used in the SparkFun Environmental Combo Breakout?
A: The breakout board combines the ENS160 sensor for air quality and the BME280 sensor for barometric pressure, humidity, and temperature measurements.
Q: What communication interface does the breakout board use?
A: The breakout board uses the I2C interface with the Qwiic connect system for easy and convenient connection to other devices.
Q: Is the SparkFun Environmental Combo Breakout suitable for indoor air quality monitoring?
A: Yes, the ENS160 sensor in the breakout board is specifically designed to measure indoor air quality parameters like eCO2, TVOCs, and AQI, making it suitable for indoor air quality monitoring applications.
Q: Are there any software libraries or examples available for using the breakout board?
A: SparkFun provides Arduino libraries and example code for both the ENS160 and BME280 sensors, which can be used to easily interface with and read data from the SparkFun Environmental Combo Breakout.