Wireless spread spectrum speech communication scheme based on AT86RF231
With the development of wireless communication technology,short distance wireless communication technology that is suitable for various application scenarios has emerged.ZigBee technology is a bidirectional wireless communication technology that offers close range,low complexity,low power consumption,low data rate,and low cost.Due to the unpredictable transmission delay of ZigBee,it is not suitable for real-time voice communication.To improve the latency issue,a voice intercom system using ZigBee chip AT86RF231 as the communication chip was designed.Using the MAC layer and physical layer of the chip,real-time wireless voice communication was achieved by controlling the transmission and reception timing through FPGA,meeting the wireless voice communication requirements of a certain system.
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