This application is designed to work with the MH-Z19 CO2 sensor and ESP32 WIFI Development Board. You can make the entire carbon dioxide, humidity and temperature detector yourself at home.

Scientific research indicates that before our civilization is destroyed by global warming, severe impairment of human cognitive and intellectual abilities will occur sooner. Because of the rapid increase in atmospheric CO2 concentrations, catastrophic effects on the human species will come much faster than for most animals.

Already, CO2 concentrations in our homes can be so high that they impair human cognitive and intellectual abilities. People who work from home, in particular, may be at risk of reduced brain performance. Complex tasks will take longer to complete, and creative work may be of much lower quality.

Of course, one can purchase a CO2 detector as just another household gadget that will quickly end up in the corner, out of our attention. However, it seems to me that a personal effort and commitment of some free time to make your own detector will more productive. By tracking the readings from your own detector, you will experience climate change personally. That's the first step to getting involved in the fight to restore the Earth's natural atmosphere. And to improve your brain's performance.