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uLCD-43PCT returns 15

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  • uLCD-43PCT returns 15

    Help! When I run my python application from the console on my Raspberry Pi, it will generally run OK and will return the correct values and load the screens properly. But occasionally it will return "15" every time it receives a message (normally after a reboot of the Pi). I cannot tell if it is the screen responding with the 15s or if the Raspberry Pi is not sending data properly.


    Is there any significance to the 15?

    Serial Port: /dev/ttyAMA0 True

    sent: 45

    received: 15


    sent: FF 9C 00 0F

    received: 15 15


    sent: FF 9E 00 00

    received: 15 15


    sent: FF CD

    received: 15



    sent: FF 9C 00 0F

    received: 15 15


    sent: FF 03

    received: 15

    Thanks

    macaaw
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