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      • #21 - Using an RJ45 Breakout Board Connect with Evaluation Kit Cables
      • #20 - Integrate Flex-PCB Sensors into Prototyping Setups
      • #19 - Smart Factory Particle Monitor Network
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      • #17 - Sleep Analysis and Pulse Monitor
      • #16 - Thermal Comfort Sensor
      • #15 - Anti-Fogging for Bathroom Mirrors
      • #14 - Improved Puff Sensing of Inhalation Devices
      • #13 - Spirometer
      • #12 - Breath Detection
      • #11 - Stress, Mood and Emotion Sensing
      • #10 - CO2 Sensing in Car
      • #9 - Milk Fat Concentration Sensor
      • #8 - Presence Detection with IR Sensor
      • #7 - RH Sensor Trigger for BLE Beacon
      • #6 - Smart Inhaler
      • #5 - Windshield Ice Detector
      • >> See All Labs Ideas
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      • Arduino: Interface for Liquid Flow Sensors
      • Arduino: Weather Station
      • Arduino: Closed Loop Volume Controller Using Liquid Flow Sensors
      • Arduino: Interface for Multiple SF06 Liquid Flow Sensors
      • Arduino: Interface for SF06 Liquid Flow Sensors with Level Shifter
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  • Sensirion Products
    • SEK-SensorBridge (Evaluation Kit)
    • SEN5x Environmental Sensor Node
    • SCD4x CO2 Sensors
    • SFA30 Formaldehyde Sensor Module
    • SGP41 VOC+NOx Sensor
    • SGP40 VOC Sensor
    • SHT4x Humidity and Temperature Sensors
    • Sensirion Products

      Start testing our sensors

      Here you can find all information for evaluating and testing Sensirion's latest sensor solutions. From drivers and software to tutorials and quick start guides - we try to offer all tools necessary so that you can kick-start your application!

  • Partner Spotlight
    • Partner Spotlight SparkFun
    • Partner Spotlight MikroElektronika
    • Partner Spotlight Seeed
  • Archive
    • Platforms
      • Environmental Sensor Shield
      • Smart Gadget Development Kit
      • Wearable Development Kit
      • Raspberry Pi
      • Qualcomm Snapdragon
      • Arduino
      • Cypress PSoC Series
      • Generic Linux Support
      • Thingstream MQTT IoT Sensor Starter Kit
    • Applications
      • Sensors for Ventilation
      • CO2 Monitor Reference Design
      • SHTC3 BLE Beacon Development Kit
      • Directional Wind Meter Using SDP3x
      • Smart Speaker
      • Archive
        • On/Off Body Detection
        • Perspiration
        • Antifogging in VR Goggles
    • Labs
      • #21 - Using an RJ45 Breakout Board Connect with Evaluation Kit Cables
      • #20 - Integrate Flex-PCB Sensors into Prototyping Setups
      • #19 - Smart Factory Particle Monitor Network
      • #18 - Inhalation Application Benefits
      • #17 - Sleep Analysis and Pulse Monitor
      • #16 - Thermal Comfort Sensor
      • #15 - Anti-Fogging for Bathroom Mirrors
      • #14 - Improved Puff Sensing of Inhalation Devices
      • #13 - Spirometer
      • #12 - Breath Detection
      • #11 - Stress, Mood and Emotion Sensing
      • #10 - CO2 Sensing in Car
      • #9 - Milk Fat Concentration Sensor
      • #8 - Presence Detection with IR Sensor
      • #7 - RH Sensor Trigger for BLE Beacon
      • #6 - Smart Inhaler
      • #5 - Windshield Ice Detector
      • >> See All Labs Ideas
    • Tutorials
      • Wearable Development Kit: Build Your Own Device
      • Wearable Development Kit: Logging Data
      • Raspberry Pi: SFM Software Package
      • Raspberry Pi: Alexa with Indoor Air Quality
      • Raspberry Pi: Using Flow Sensors
      • Raspberry Pi: Weather Station
      • Arduino: Create Your Own CO2 Monitor
      • Arduino: Stand-Alone Liquid Flow Meter
      • Arduino: Interface for Liquid Flow Sensors
      • Arduino: Weather Station
      • Arduino: Closed Loop Volume Controller Using Liquid Flow Sensors
      • Arduino: Interface for Multiple SF06 Liquid Flow Sensors
      • Arduino: Interface for SF06 Liquid Flow Sensors with Level Shifter
      • Arduino: CAN Bus Flow Meter
Sensirion AG Switzerland
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  • SCD4x CO2 Sensors

SCD4x CO2 Sensors

The SCD4x is Sensirion’s next generation miniature CO2 sensor that offers an unmatched price-to-performance ratio. Tape and reel packaging combined with its SMD assembly processing make the SCD4x ideal for high-volume applications. This sensor builds on the photoacoustic sensing principle and Sensirion’s patented PASens® and CMOSens® Technology to enable unmatched small sensor size combined with high performance. SMD compatibility and the small footprint allow cost- and space-effective integration to boost freedom of design for customers. The integrated best-in class humidity and temperature sensor enables superior on-chip signal compensation and addition RH and T outputs. Finally, the large supply voltage (2.4 V – 5.5 V), the robustness towards external stresses and the adjustable power consumption make the SCD4x the perfect fit for varying customer needs.

Click here to order your SEK-SCD41 evaluation kit. 

Navigation:

  • Content Evaluation Kit
  • Quick Start Guide
  • Software, Drivers and Tutorials
  • Breakout Boards
  • Resources
  • Videos
  • Further Information

Content SEK-SCD41-Sensor Evaluation Kit

  • SCD41 Development Board
    I2C interface
    Vdd range: 2.4 to 5.5 V
    Peak current @ 3.3 V: 205 mA
    Peak current @ 5 V: 137 mA
  • Adapter cable to connect the SCD41 development board to SensorBridge
  • Jumper wire set to connect the SCD41 development board to embedded platform
    Cable configuration:
    Green cable = SDA
    Red cable = VDD
    Yellow cable = SCL
    black cable = GND

Evaluation Kit Quick Start

It just takes three steps to start evaluating your SCD41 CO2 sensor:

1) Order a SEK-SensorBridge via our distribution network

2) Download the SEK-ControlCenter viewer software (available for Windows, Linux and MacOS)

3) Connect the SCD41 development board to your computer by using a SEK-SensorBridge and start measuring


Software, Drivers and Tutorials

Software and Drivers

  • SCD4x Embedded Driver
  • SCD4x Arduino Driver
  • SCD4x RaspberryPi Driver
  • Arduino Examples
  • SCD4x Makecode for micro:bit
  • SEK-ControlCenter Viewer Software

Tutorials

  • Arduino
  • RaspberryPi
  • Python Package
  • BLE Gadget for CO2 Monitoring

Breakout Boards

Adafruit

  • SCD40 CO2 Sensor
  • SCD41 CO2 Sensor

Sparkfun

  • SCD40 CO2 Sensor
  • SCD41 CO2 Sensor

MikroElektronika

  • SCD41 CO2 Sensor

Seeedstudio

  • SCD41 CO2 Sensor

Resources

Important Documents SCD4x

  • Datasheet SCD4x (SCD40, SCD41)
  • Datasheet SCD42
  • SCD4x STEP File
  • SCD4x Altium Footprint
  • Handling Instructions
  • Design-In Guideline
  • Testing Guideline
  • What types of NDIR sensors exist and how do
    they work?

Important Documents Evaluation Kit SEK-SCD41

  • SEK-SCD41 Technical Description
  • SEK-SCD41 STEP File

Videos


Further Information

SCD4x Product Page

Click here to learn more about the SCD4x, its key features and use cases.

Indoor Air Quality

Click here to learn more about the importance of indoor air quality and how it effects your health.

Your Contact to Sensirion

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