说明：  针对目前蓝牙技术高功耗,不适合实验室等多人研发应用的问题,设计了基于STM32的红外光通信装置.该系统运用处理器STM32的Speex语音编码与解码算法技术实现中短距离的红外光无线通信.通过语音发送模块,中继转发节点模块和语音接收模块增强装置通信功能.测试结果表明,接收装置输出噪声电压小于0.1V,中继转发站可将传输方向改变任意角度,语音信号安全、稳定,传输距离为8m
(Aiming at the problem of high power consumption of Bluetooth technology, which is not suitable for many people's research and development in laboratory, an infrared optical communication device based on STM32 is designed. The system uses Speex speech coding and decoding algorithm technology of STM32 processor to realize medium and short distance infrared optical wireless communication. The communication function of the device is enhanced through voice sending module, relay and repeater node module and voice receiving module. The results show that the output noise voltage of the receiving device is less than 0.1V, and the relay and repeater station can change the transmission direction at any angle. The speech signal is safe and stable, and the transmission distance is 8m.)