Design of safety protection system for the elderly based on single chip microcomputer

A safety protection system for the elderly was designed based on STM32 microcontroller. The main functions include: anti-loss function, anti-fall function for the elderly, alarm when the concentration of gas exceeds a certain level. The device can be used for alarm messages, voice broadcasts and GSM short message remote notifications. When the elderly sense danger, the device can alarm manually. This system can comprehensively protect the elderly's own safety and has certain practical application significance.