Activity Forums Questions & Troubleshooting Hardware i2C 20×4 Display on Controllino Mini

  • i2C 20×4 Display on Controllino Mini

     Jarda updated 1 year, 4 months ago 2 Members · 2 Posts
  • sturze

    Member
    April 29, 2020 at 3:23 pm

    Hi!

    i have a 20×4 I2C Display on my Controllino Mini connected to the 5v, GND, D6 and D7 pin on the pinheader.

    Running a simple LCD test sketch is working on 5V via USB, but powering the Controllino Mini, the D6 pin goes off quite quickly after powering, so does the LCD.

    Switching back to USB everything is running just fine.

    Whats wrong?!?!

  • Jarda

    Member
    May 18, 2020 at 11:35 am

    Hello,

    please, is the CONTROLLINO working without the connected LCD.

    Regards

    Jaroslav

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