In this multi part series, I will be taking you through building, breaking and re-making of a rugged (dust and water proof) and reliable (firmware, power, and connectivity) with Hornbill series of ESP32 dev boards. The aim is show the process of building, documenting the failure as well as the working! So in this first part we will try and build a quick prototype and show that it is possible. At the end of it we will ask some fundamental questions and re-visit the design and see what can be improved.

Why do it?

Air pollution is on rise in all major Indian cities. Indoor Air Pollution at times is worse than outdoors. In my opinion it is important to measure it. We may not be able to control it with this project but as the saying goes "If You Can't Measure It, You Can't Improve It. "

Poll.png

So I had a poll with a fellow makers and they believe it is important to measure it.

Indoor Air Quality (IAQ)

In this tutorial we will build a simple logger which displays the following parameters and then logs it online.

  • Temperature
  • Humidity
  • Carbon Dioxide(CO2) equivalents in ppm
  • Total Volatile Organic Componds (TVOC) in ppb


Schematic

Iaq schematic.png

Parts

Code

Well giving it shot should be fun enough!