Thank You, AdderD, for your explanation.
Luckily i found out, that the NEXTION Hmi is only powered 5V, but has also a 3V3 chip on board and the Voltage is reduced for the logic (only backlight is 5V), so everything is Ok:-)
Thank You, AdderD, for your explanation.
Luckily i found out, that the NEXTION Hmi is only powered 5V, but has also a 3V3 chip on board and the Voltage is reduced for the logic (only backlight is 5V), so everything is Ok:-)