Design and implementation of an intelligent walkie-talkie based on STM32

This study implements an intelligent walkie-talkie system based on STM32F103C8T6, composed of an intercom module, audio circuits, display/key/LED circuits, using half-duplex mode. It realizes two-way voice communication via electro-acoustic conversion and power amplification. Tested to work stably within 1km, requiring no telecom control and resisting external interference, it provides an efficient solution for short-range wireless communication, with broad prospects in emergency communication, team collaboration, and other scenarios.