1. Different references
< br >
1, CPU: as the computing and control core of the computer system, it is the final execution unit of information processing and program operation.
< br >
2. MCU: Also known as A single chip microcomputer or single chip microcomputer, it is to appropriately reduce the frequency and specifications of the central processor, and the memory (memory), counter (Timer), USB, A\/D conversion, UART, PLC, DMA and other peripheral interfaces, and even LCD driver circuits are integrated on a single chip to form a chip-level computer.
< br >
Second, different functions
< br >
1, CPU: The function is mainly to interpret computer instructions and process data in computer software. CPU is the core part of the computer that is responsible for reading instructions, decoding instructions and executing instructions.
< br >
2, MCU: MCU and temperature sensor through the I2C bus connection. The I2C bus occupies two MCU input and output lines, and the communication between them is completely completed by software. The address of the temperature sensor can be set by 2 address pins, which allows 8 such sensors to be connected simultaneously on an I2C bus.