QuecPython UART main and UART aux

[DiXmon]

Hello.
I need some technical assistance. I need to use two UARTs:
The first one on pins P34 and P35
The second one on pins P27 and P28
for connecting to ESP32-S3 GPIO (3.3V). I can’t figure out from the board’s instructions whether there is a built-in level shifter, and whether it’s even needed, or if I can connect directly without enabling anything additionally.
Do I need to activate a level shifter with jumpers? And does this apply to UART P27/P28 or UART P34/P35?

[Felix.feng-Q]

@DiXmon

Hello.
I need some technical assistance. I need to use two UARTs:
The first one on pins P34 and P35
The second one on pins P27 and P28
for connecting to ESP32-S3 GPIO (3.3V). I can’t figure out from the board’s instructions whether there is a built-in level shifter, and whether it’s even needed, or if I can connect directly without enabling anything additionally.
Do I need to activate a level shifter with jumpers? And does this apply to UART P27/P28 or UART P34/P35?

hi
The module’s voltage domain is 1.8V. If you need 3.3V, an external level conversion chip will be required.