Activity › Forums › Questions & Troubleshooting › Software & Firmware › Data sent to Serial2 shows up in Serial Monitor › Reply To: Data sent to Serial2 shows up in Serial Monitor

  • Lukas

    Member
    May 18, 2021 at 9:54 am

    Hi Max,

    have you tried to supply the display from the 5V at the CONTROLLINO pinheader? If you are using external 5V adapter – have you interconnected GND of CONTROLLINO and GND of the display?

    From your description it seems that RX and TX are interconnected at the display side …

    Any progress so far?

    Thanks,

    Lukas

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