Mastering UART communication

A UART is a hardware device or a protocol that manages asynchronous serial communication between devices. It facilitates data transmission by converting bytes of data from the CPU into a continuous stream of bits suitable for transfer via communication links. One of the key features of UART is that it does not require a clock signal. This simplifies hardware, reduces power consumption, and allows flexible data rates but may also lead to potential timing and synchronization issues between the sender and receiver, requiring additional overhead for start and stop bits and making it less suitable for high-speed or long-distance communication. The absence of a clock signal makes this protocol asynchronous. This simple yet powerful communication protocol is commonly used in microcontroller-based projects for inter-device communication, making it an essential part of our ESP32 study.

In this section, we will cover the following topics related to UART in the...