The MCU also called a single-chip microcontroller. It is not a chip that completes a certain logic function, but integrates a computer system into a chip. It is equivalent to a micro computer. Compared with the computer, the single-chip microcomputer only lacks I/O devices. In a nutshell: a chip is a computer which is small in size, light in weight, cheap in price, and provides convenient conditions for learning, application and development. At the same time, learning to use a single-chip microcomputer is the best choice for understanding the principles and structures of computers. https://www.cdebyte.com/Modem-Wirelessmodem-LoRawirelssmodem
