The commonly used single-chip computers are STC single-chip, PIC single-chip, EMC single-chip, ATMEL single-chip, Philips 51LPC series single-chip and so on. This design adopts ATMEL single chip microcomputer series of AT89C51 single chip microcomputer.AT89C51 is a low-voltage, high-performance CMOS 8-bit microprocessor with programmable erasable read-only memory, that is, 8-bit MCU. Its erasable read-only memory can be erased 1000 times. The device is manufactured by ATMEL high density non-volatile storage manufacturing technology, and is compatible with industry standard MCS-51 instruction set and output pin.