My hardware:
# Adafruit Metro M4 feat. Microchip ATSAMD51
NEXTION INTELLIGENT HMI DISPLAY 10" version
FOCA MAX- USB TO TTL CONVERTER BOARD
I want to make sure I connect the screen to the microcontroller correctly without harming anything. Do I solder pin headers to the FOCA MAX and wire just the UART RX and TX to the microcontroller? Do I also need the 5v pin connected between the FOCA MAX and the microcontroller or can I skip that since the screen is powered by an external power supply?
I believe the UART pins on the microcontroller are 3.5v. Will I have any voltage issues with the UART pins from the FOCA MAX to the microcontroller?
