Introduction: Working principle: This system is divided into two parts, the transmitting board and the receiving board. 2.4GHz frequency hopping communication technology is used for big data communication. While sending audio data, remote control data can also be sent to the receiving end at the same time. Each data packet contains audio stream data, volume level instructions, and PPT page turning instructions. The sampling rate of this machine is 16K, 16bit. For human voice, the sound quality is quite beautiful. When the transmission power is 17dbm, the bare board can turn around without packet loss within an open distance of 19 meters, which has reached the performance of mass production level in the market. Author: EEWorld community user zsspj Original link: https://en.eeworld.com/bbs/thread-925841-1-1.html
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