Hi ajb2k3,
thanks a lot. This is a quit full of money for this type of display. Seemes to be manufactured only for M5Stack. Due to the fact, that shipping costs and VAT to Germany will be applied, to by a new one for around 45 bucks (€) would be my way to go. The unit is working. I just use then the M5-unit without display (like an ESP32) and put this in setup():
#include <M5Stack.h> // put this at the beginning
M5.begin(); // Initialize the M5Stack object
M5.Lcd.writecommand(ILI9341_DISPOFF);
M5.Lcd.setBrightness(0);
Thanks, Axel