1, the customer can first follow QYM5FS to test the functionality. 2, if they stick the chip on the board, it must be strictly in accordance with our design reference, so as to ensure the success rate of 3-chip solution for all the functions are in the " QYM5FS manual. Pdf" which is described in detail if there is no detail place, please refer to " QYM1FS_V1.6 manual. pdf" 4, QYM5FS actually cut from QYM1FS module out. Retains all of the serial operating part

KT403A_V1.2.pdf

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