SparkFun Environmental Combo Breakout – ENS160/BME280

The SparkFun ENS160/BME280 Environmental Combo Breakout takes care of all your atmospheric-quality sensing needs with the popular ENS160 and BME280 ICs. This unique breakout provides various environmental data, including AQI, TVOCs, equivalent CO2 (or eCO2) levels, barometric pressure, humidity, and temperature. To make it even easier to use this breakout, all communication is enacted exclusively via I2C, utilizing our handy Qwiic system. However, if you prefer a breadboard, we still have broken-out 0.1in. spaced pins.

The ENS160 is the replacement for the popular CCS811 sensor, providing readings for equivalent CO2 (or eCO2) in the parts per million (PPM) and total volatile organic compounds in the parts per billion (PPB). The sensor can also provide the Air Quality Index (AQI). The ENS160 also has a feature that allows it to fine-tune its readings if it can access the current humidity and temperature. Luckily, the BME280 provides humidity, temperature, and barometric pressure! This allows the sensors to work together to give us more accurate readings than they’d be able to provide.

Add the Environmental Combo Breakout to your next project for building automation, smart home, HVAC, indoor/outdoor navigation, weather forecasting, and even personal health and wellness monitoring!

Note: The I2C address of the Environmental Combo Breakout is 0x53 / 0x77 and is jumper selectable to 0x52 / 0x76. A multiplexer/Mux is required to communicate to multiple Environmental Combo Breakout sensors on a single bus. If you need to use more than one Environmental Combo Breakout sensor, consider using the Qwiic Mux Breakout.

The Redboard is NOT included.

Get Started with the Environmental Combo Breakout Guide

Features

• 2x Qwiic-Enabled Connectors
• Input Voltage Range
  • Typically 3.3V via Qwiic cable
• ENS160
  • I²C Addresses: 0x53 (Default) or 0x52
  • Wide Operating Ranges
    • VDD: 1.71 1.98V
    • VDDIO: 1.71V to 3.6V
    • Temperature: -40°C to +85°C
    • 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: -40°C to 85°C
    • Full accuracy to ± 0.5°C from -0°C to 65°C
    • Resolution 0.01°C
  • 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)
• 2.2kΩ 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