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What is an audio module.

E702T can be directly connected with an external audio power amplifier to form a network audio broadcasting terminal. It can also be directly connected to the microphone and use the 2W audio power amplifier of the machine to form an intercom terminal.
E702T provides one UART for user interface interface, two general UARTs, one SPI expansion interface, one relay output, and one IO input interface.
In order to facilitate user use and secondary development, we provide a dynamic library under Windows. The dynamic library integrates complex Socket communication, audio compression and decoding, threads, etc., and provides users with a simple and convenient interface.
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