sparkfun_air_quality_sgp40

SGP40 - Air Quality Sensor (Sparkfun)

Summary

This project shows the implementation of an SGP40 that is new digital VOC (volatile organic compounds) sensor designed for easy integration into air purifiers or demand-controlled ventilation, integrated on the Air Quality Sensor.

You can use this example as a reference for creating your own indoor air quality monitoring application. You can visualize the measured volatile organic compound (VOC) level by a display or you can transfer the measurements to a data center or mobile phone, which can trigger warning messages or start air freshener devices.

Quick Look Video

Required Hardware

• EFR32xG24 Explorer Kit.

• Air Quality Sensor.

Hardware Connection

The Air Quality Sensor support Qwiic, so it can connect easily to EFR32xG24 Explorer Kit's Qwiic header.

The hardware connection is shown in the image below:

Setup

You can either create a project based on an example project or start with an empty example project.

Create a project based on an example project

1. From the Launcher Home, add the BRD2703A to My Products, click on it, and click on the EXAMPLE PROJECTS & DEMOS tab. Find the example project with filter sgp40

2. Click Create button on the Third Party Hardware Drivers - SGP40 - Air Quality Sensor (Sparkfun) example. Example project creation dialog pops up -> click Create and Finish and Project should be generated.

3. Build and flash this example to the board.

Start with an empty example project

1. Create an "Empty C Project" for the "BGM220 Explorer Kit Board" using Simplicity Studio v5. Use the default project settings.

2. Copy the file app/example/sparkfun_air_quality_sgp40/app.c into the project root folder (overwriting existing file).

3. Install the software components:

   • Open the .slcp file in the project.

   • Select the SOFTWARE COMPONENTS tab.

   • Install the following components:

     • [Services] → [Timers] → [Sleep Timer]
     • [Services] → [IO Stream] → [IO Stream: USART] → default instance name: vcom
     • [Application] → [Utility] → [Log]
     • [Third Party Hardware Drivers] → [Sensors] → [SGP40 - Air Quality Sensor (Sparkfun)]

4. Build and flash this example to the board.

Note:

• Make sure that the SDK extension already be installed. If not please follow this documentation.

• SDK Extension must be enabled for the project to install "SGP40 - Air Quality Sensor (Sparkfun)" component.

How It Works

You can launch Console that's integrated into Simplicity Studio or use a third-party terminal tool like Tera Term to receive the data from the USB. A screenshot of the console output and an actual test image are shown in the figure below.

• Test the sensor and start to measure

• After trying to put the sensor near a source of Volatile Organic Compounds (VOCs)

• After trying to put the sensor away a source of Volatile Organic Compounds (VOCs)

Report Bugs & Get Support

To report bugs in the Application Examples projects, please create a new "Issue" in the "Issues" section of third_party_hw_drivers_extension repo. Please reference the board, project, and source files associated with the bug, and reference line numbers. If you are proposing a fix, also include information on the proposed fix. Since these examples are provided as-is, there is no guarantee that these examples will be updated to fix these issues.

Questions and comments related to these examples should be made by creating a new "Issue" in the "Issues" section of third_party_hw_drivers_extension repo.