Essential hardware for your agri-tech project
In this project, we have chosen open source and easily available hardware components. To demonstrate how the Arduino IoT Cloud works with ESP32 series development boards, we have chosen the following hardware. In the ESP32 series, we have a wide selection of development boards that vary in size and number of pins. In this chapter, we are using ESP32-DevKit V1 as it’s very compact and smaller in size compared to other boards. It is, of course, also cheaper and provides a 5V pin, which is also known as VIN, as well as having the option of a 3.3V pin. The following figure shows the pin layout (pinout) diagram of ESP32 V1.
Figure 9.1: ESP32-DevKit V1
ESP32 provides multiple pins for digital and analog input/output. If you want to use multiple analog sensors, then ADCs are available. One of the most well-known ADCs is the ADS1115/ADS1015 module, which provides four analog pins and is good when you need to...
