Summary
At the beginning of the project, you saw how to interface a soil moisture sensor to your STM32 board. Then, we created a simple sketch to collect the sensor readings and tested it to ensure it worked properly.
We also learned how to connect a NodeMCU card to the internet and read the sensor data from the STM32. Finally, in the last part of the project, we built a web app to control the IoT device from any web browser, either mobile or desktop.
The IoT area is growing quickly, so talented people with the right skills in this technology can easily access jobs in this exciting area. With this in mind, after completing this chapter, we now have a stronger foundation for creating IoT devices and applications.
In the next chapter, we will learn how to connect our electronic devices to the internet and make them available outside our local Wi-Fi network.
