Building a Cloud-Free Air Quality Meter: A DIY Journey
Introduction
The Ingredients
Putting It All Together
The User Experience
Conclusion

Published August 21, 2023 © GPL3+

Build Your Own Air-Quality-Meter

Measure and monitor indoor air quality effortlessly with our DIY project using SGP30, ensuring a healthier and safer living environment!

BeginnerFull instructions provided1 hour1,267

Things used in this project

Hardware components

Tripler Adapter

sgp30

ESP8266 D1-mini

OLED display

Software apps and online services

Webflashing tool

Arduino IDE

Story

Building a Cloud-Free Air Quality Meter: A DIY Journey

Introduction:

In an era where data and technology dominate, I embarked on a journey to create something a little different – a cloud-free air quality meter that brings simplicity and efficiency to indoor air monitoring. Armed with the versatile SGP30 sensor, the reliable ESP8266 D1 Mini, a tripler adapter, and a vivid 0.66" OLED display, I set out to craft a device that empowers anyone to gauge their environment's health without the complexities of cloud integration.

The Ingredients:

The heart of this project lies in the powerful SGP30 sensor, renowned for its accuracy in measuring volatile organic compounds (VOCs) and equivalent carbon dioxide (eCO2) levels. Paired with the ESP8266 D1 Mini, a compact yet potent microcontroller, and facilitated by the tripler adapter, which brought seamless connectivity, the stage was set for a remarkable DIY experience. Adding a visual dimension, the 0.66" OLED display promised to provide real-time feedback in a user-friendly manner.

1 / 2 • Here is how you should align the sensor, D1 mini and the OLED

Putting It All Together:

Starting with careful assembly and connections, each component found its rightful place on the circuit board. The ESP8266 D1 Mini proved to be a reliable brain, processing sensor data and orchestrating the OLED display. With the SGP30, I could detect changes in the air composition, empowering me to take proactive steps for a healthier indoor environment. The tripler adapter, graciously provided by Carenuity, streamlined connections, and alleviated wiring concerns, allowing me to focus on the core functionality.

The User Experience:

What truly sets this project apart is its cloudfree approach. By eliminating the need for cloud integration, the device remains accessible to everyone, regardless of their technical prowess. The OLED display presents a clear snapshot of VOC and eCO2 levels, allowing instant assessments. With this project, understanding air quality becomes an intuitive, tangible experience.

Conclusion:

Crafting a cloudfree air quality meter was more than just assembling components; it was about empowering individuals to actively engage with their surroundings. With the SGP30, ESP8266 D1 Mini, tripler adapter, and OLED display as my allies, I succeeded in creating a tool that transcends complexity, putting the power of air quality assessment back in the hands of those who matter most – us. This project stands as a testament to the fusion of technology, simplicity, and practicality.

Code

SGP30_D1-Mini_0.66-OLED_cloudfree

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_SGP30.h>

#define OLED_RESET 0 // GPIO0
Adafruit_SSD1306 display(OLED_RESET);

Adafruit_SGP30 sgp30; 

void setup()
{

  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);

  if (sgp30.begin() == false)
  {

    while (1)
      ;
  }


}

void loop()
{

  delay(1000);

  display.clearDisplay();
  display.setTextSize(1);
  display.setCursor(40, 10);
  display.setTextColor(WHITE);

  if (sgp30.IAQmeasure())
  {

    display.println("CO2: ");
    display.setTextSize(1);
    display.setCursor(75, 10);
    display.println(sgp30.eCO2);

    display.setTextSize(1);
     display.setCursor(40, 23);
    display.println("TVOC: ");

    display.setTextSize(1);
     display.setCursor(75, 23);
    display.println(sgp30.TVOC);

    display.display();
  }
  else
  {
    display.println("Error!");
    display.display();

    while (1)
    {
      ;
    }
    
  }
  
  
}

Credits

TIMOTHY MWALA

29 projects • 17 followers

I am an Embedded engineer who like prototyping

Contact

Thanks to ChipGlobe GmbH and Carenuity.

Comments

Please log in or sign up to comment.

Embed the widget on your own site

Build Your Own Air-Quality-Meter

Build Your Own Air-Quality-Meter

Things used in this project

Hardware components

Software apps and online services

Story

Building a Cloud-Free Air Quality Meter: A DIY Journey

Introduction:

The Ingredients:

Putting It All Together:

The User Experience:

Conclusion:

Schematics

SGP30_D1-Mini_0.66-OLED_cloudfree

Code

SGP30_D1-Mini_0.66-OLED_cloudfree

Air Quality Meter

Credits

TIMOTHY MWALA

Comments

Related channels and tags