Summary

In this chapter, we explored how to develop a smart agriculture monitoring system using DHT22, capacitive soil moisture sensors, a DS18B20 probe for soil temperature, and an ESP32 development board along with the ADS1115 ADC module. We calibrated soil moisture and temperature sensors in the lab before using them in the field. We also set up a thing, which included creating cloud variables, device association, network configuration, and coding of the development board. Then, we created a dashboard to visualize the Thing’s sensor readings with different types of widgets to display current readings as well as historical data with the help of graphs.

This project will help you and give you the confidence to collaborate with agriculture researchers and soil scientists to work on a more advanced level. It will help you to add IoT systems to real fields and tunnel farms, as well as help you in home gardening.

In the next chapter, we will work on a smart home project where...