Grove - SCD30 CO2, Temperature & Humidity Sensor

The Grove - SCD30 is a 3-in-1 Arduino sensor that can measure CO2, temperature, and humidity. Based on Sensirion SCD30, it is a Non-Dispersive Infrared(NDIR) carbon dioxide sensor with high precision and wide measurement accuracy which can reach ±(30 ppm + 3%) between 400ppm to 10'000ppm. It would be a perfect choice if you are not looking for a simple Arduino temperature sensor or a CO2 sensor, but a multifunctional sensor for your Arduino weather station or other environmental projects.

Embedded with Sensirion SCD30,  The Grove - SCD30 integrates Non-Dispersive Infrared(NDIR) measurement technology for CO2 detection. It also has Sensirion humidity and temperature sensors on the same sensor module. 

You can see that there is a monkey face graphic on the module, actually, this is a carbon dioxide molecular model. As you can see, the 4 valence electrons on each oxygen atom and also the covalent bonds between the carbon and oxygen atoms are clearly shown. 

Hardware connections:

• Grove base shield:

• Wio Terminal-ATSAMD51 Dev Board

Pinout:

Application example:

• Air Purifier
• Environmental Monitoring
• Plant Environmental Monitoring system
• Arduino weather station

• NDIR CO2 sensor technology: embedded with Sensirion SCD30
• Multi-function: Integrates temperature and humidity sensor on the same sensor module
• High precision and wide measurement accuracy: ±(30 ppm + 3%) between 400ppm to 10'000ppm
• Superior stability: Dual-channel detection
• Easy project operation: Digital interface I2C, Breadboard-friendly, Grove compatible
• Best performance-to-price ratio

Specifications:

• Supply voltage: 3.3V / 5V
• Operating temperature: 0℃ to 50℃
• Storage temperature: -40°C to 70°C
• Humidity operating conditions: 0 – 95 %RH
• Sensor lifetime: 15 years
• Interface: I2C
• I2C Address: 0x61
• Size (LxWxH): 61x42x19mm
• Weight19.7g
• General specifications:
  • CO2 measurement range: 0 – 40’000 ppm
  • Accuracy (400ppm – 10'000ppm): ± (30 ppm + 3%)
  • Repeatability (400ppm – 10'000ppm): 10ppm
  • Response time (τ63%): 20s
• CO2 sensor specifications:
  • Humidity measurement range: 0 %RH – 100 %RH
  • Accuracy (0 – 50°C, 0 – 100%RH): ±2 %RH
  • Repeatability: 0.1 %RH
  • Response time (τ63%): 8s
• Humidity sensor specifications:
  • Temperature measurement range: -40°C – 120°C
  • Accuracy (0 – 50°C): ±0.5°C
  • Repeatability: 0.1°C
  • Response time (τ63%): more than 2s
• Temperature sensor specifications:
  • Average current (update interval 2s): 19 mA
  • Max. current (during measurement): 75 mA
  • Energy consumption (1 measurement): 120 mJ

• 1 x Grove - SCD30 CO2, Temperature & Humidity Sensor
• 1 x Grove 4 Pin Buckled 20cm Cable

• Product wiki page
• Grove - CO2 & Temperature & Humidity Sensor (SCD30) Schematic file, zipped file
• SCD30 Design-In Guideline, pdf
• SCD30 Datasheet, pdf
• SCD30 Interface Description, pdf
• Seeed SCD30 Library, Github
• Example of projects:
  • Air Quality Sensor Hub - Seeeduino XIAO Expansion Board
    This is an environment detect device to collect PM2.5, PM10, temperature, humidity, CO2 and dust particle.
  • ML Fire Class Analysis
    Decrease fire losses by identifying fire class and agent using machine learning applied on the drone collected environmental data from fumes
  • CO2 monitoring with WioTerminal
    WioTerminal with a CO2 sensor to measure the indoor air quality and remind to ventilate the room. Useful IoT device - 2020 Corona Pandemic
  • Indoor Hand-held Co2 Detector (for Covid-19 Purpose)
    How do people know there is enough air exchange in their rooms? There is a simple way to make that determined by Seeeduino XIAO.