Learning to connect the ESP8266 module

As we learned at the beginning of the chapter, an electronic device to be considered an IoT device must have an internet connection and make its data available through this medium.

Due to the aforementioned requirement, we will use a module that will give our temperature-logging system the ability to connect to the internet. This component is the ESP8266 Wi-Fi module.

Now, we are going to learn the hardware components needed to connect the STM32 Blue Pill to the internet using the ESP8266 Wi-Fi module. The first thing will be to know and understand the Wi-Fi module.

An introduction to the ESP8266 Wi-Fi module

The ESP8266 is a microcontroller with integrated Wi-Fi communication, and its main advantage is its very low cost compared to other chips with similar characteristics. By itself, it can work as a microcontroller, such as Arduino or Blue Pill, but it is widely used as a Wi-Fi module for other microcontrollers that do not have a...