Design of Intelligent Voice Message Doorbell Based on Microcontroller

Now science and technology are developing rapidly, and the microelectronics, wireless, and network technologies are also developing rapidly. At the same time, people's living standards are constantly improving, and the requirements for the safety and convenience of the places where they live are becoming higher and higher. In smart residential buildings, people are more in urgent need of a new type of wireless doorbell product, which can integrate the advantages of reliability, security, convenience and so on, so the design of intelligent voice message doorbell has become a hot spot. The design consists of STC89C52 single-chip microcomputer circuit, 315M wireless module circuit, voice recording and playback circuit, music chip circuit key circuit and power circuit. Wireless data transmission is carried out by the 315M wireless remote control module, which has a long transmission distance and strong anti-interference ability. Outsiders can record voice and leave messages through the recording module. This system has low price, relatively stable performance, wide application range, and very promising market.