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  • November-16 2019 20:47:35

    Works beautifully well. I use lots of them with Arduino Mega2560 boards at 115200 baud. Easy to set up using the Arduino IDE software serial monitor function using the "AT" commands. This board has the best setup functions yet! All of the AT commands run at 9600 baud regardless of the baud rate you set the board to. As soon as the board bluetooth-connects, it becomes like a transparent serial wire at the selected baud rate. For setup instructions and AT command set, search the web for the file "JDY-31

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  • September-21 2019 20:27:09

    Good product and fast shipping.Difficult to find schema of connections.

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