I'm new in node-red and i'm doing a project where i have a graphical interface with some numeric parameters to be inserted by the user, send to a serial port (mbed) and receive another information to the same serial port and a graphic will be generated and i should save that file to analysis.
The questions i have are:
1: With the parameters inserted i want iniciate to send a package to the serial port, how i edit the nodes to make a button "start" working and sending that information? I should also use a function node to conect the inputs and to send the package right?
2: If i have also a text input to the user choose the name file, how i can save with that name using a button "save"? I should dowload as cvs file?
3: If i have a form node it will be different the resolution to the problem in 2? Instead of having a text input for example.
I don´t know if i was explicit enough but if someone can help me i apreciate, thank you!