Before making serial assistant , You can refer to others' serial port assistant first , Let's see what functions are needed . As I often use ：
The above red box is the function I feel I often use , We can use this as a template to make our own serial assistant .
Select... In the left item bar .ui It's a suffix UI file
Drag the required control from the left to the middle window . As for the layout , You can follow your own ideas , My layout is as follows ：
Then change the control name ：
It's like that .