Chapter 14. Communication
Generally speaking, there are lots of options for wireless communication, such as infrared and laser, which have been talked about in Part 2.
In this chapter, some other widely used communication methods are to be discussed in detail, including:
Serial port communication
Wifi module - ESP8266 and Official Arduino Wifi Shield
Bluetooth module - HC-0X
integrated Wifi and dual-mode Bluetooth module - ESP32
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