Faststream Technologies > Case Studies > WIRELESS SPEACKER


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The Challenge

According to the requirement of the design, the MP3 decoding module, Wi-Fi module, Power amplifier module, Audio channel selection module, Bluetooth audio receiver module, and radio module was designed. STM32 series microcontroller is the main control chip, the music in other storage media are decoded and played through the MP3 decoder chip. By selecting a sound module like Bluetooth audio module, Wi-Fi wireless connection with mobile, or receiving music by radio module, the input can be given to the amplifier. In this design, data transmission by the wireless way can reduce wiring work.

The Solution

The circuit consists of the single-chip microcomputer, audio decoding circuit, wireless communication circuit radio circuit, display circuit, etc. It can realize MP3 playing, radio, mobile phone operation, and other functions.

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