• Have you tried:

    require("HD44780").connectI2C(I2C1, 0x3F);
    

    it seems you have a PCF8574A which have
    address 0x7E, shifted right it is 0x3F

  • Hi Frida,
    many thanks for the suggestion!
    Using the instruction you have suggested the "Hello World!" example works
    properly using either "direct connection" or pull up resistors between signal lines.

    Regards

About

Avatar for Frida @Frida started