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  1. #1
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    SPI protocol with SD card

    I am using sim868 module how can interface sd card by using spi protocols i want play song from sd card ...

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  2. #2
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    ArakelTheDragon's Avatar
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    Re: SPI protocol with SD card

    Can you post a circuit? If your module has SPI, you connect it to the MCU and then from the MCU to an mp3 player chip, you might be able to skip the MCU.
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