This time i ordered a monochrome OLED display with a resoltion of 128×64. It works with an I2C interface and needs no background light because of the self illumination type.
In order not to have to spend more information on the serial monitor, it is recommended to connect a display. The presented 1.8-inch TFT color display with SPI interface can help here. It has 128×160 pixels and needs in the minimum case, only 4 ports.
The LCD display which was originally used in the Nokia 5110 has indeed found a long time ago the way to a breakout board, but it is still simple useful for various microcontroller boards, because it can be relatively easily controlled and programmed.