NormanStudentRobotic

Hey can you help me?, I want to connect pico to pico using protocol Modbus RS485 but i got some error, Here is my schematic program  i use code...

Hi I've changed the pin as follows, but I'm getting a new error like this.  Here is my new error Traceback (most recent call last): File "", line 117,...

I've changed uart_id = 0 since the beginning  in serial.py I have also changed   Why now i got error like this  can you help me sir?