Requirements: real-time speed curve drawing, display real-time speed, need to start and delete button, com4, 9600 baud rate, lower machine microcontroller send is a decimal number, namely speed, do not use third-party control... What a great god help me

CodePudding user response:

Money?????????????

CodePudding user response:

How much?????????????

CodePudding user response:

You what all can't, no one to help you, you can split into multiple small question,

CodePudding user response:

Draw curves are usually used, QCustomPlot QWT; Write their own is ok of course, you this is actually "a serial port communication + drawing"

CodePudding user response:

Using Qt version 5.7 and above, bring charts and serial interface communication module,

CodePudding user response:

To find a source and have a look, there should be a similar project in the company, under reference, according to the description, is very simple

CodePudding user response:

According to the communication protocol to lu directly

CodePudding user response:

Can see my blog, you this is too broad, to break up the question,
1. Consider to be clear about what to do first, interface Settings, probably to learn;
2. Grasp the basis, the serial port connection code, connected to the first,
3. The upper and lower position machine interaction, interactive data, the data processing is good, get a interface to the drawing functions,
4. Drawing can use customplot, pretty simple,
5. Optimize