How to save data received by serial communication as db file in node js?

Asked Dec 19 '17 at 06:19

Active Dec 19 '17 at 06:19

Viewed 252 times

I have serial communication with the device

Every second when a port is opened ,pc is receiving data (value & time)

I wrote the code to store these values in "Test.db".

If comlog or Test.db right away in Notepad, i could see the value

However, when I quit the program and opened "Test.db" using the db browser, I could not see anything.

Do I have to set the data value separately in order to check it in the db browser?

The code below implements the part that receives and save the data

    port.on('data', function(data) {            
     converted_data = parseFloat(data);
     console.log(converted_data);
    var secondsElapsed = (new Date().getTime()-stamp)/1000;
     console.log(secondsElapsed);
       fs.appendFile('Test.db',converted_data + 
                       '\r\n'+secondsElapsed+',',function(err) {        
       if(err) 
             console.log(err);
       else
             console.log('data->db');       
       });
    });

asked Dec 19 '17 at 06:19

https://stackoverflow.com/questions/2496710/writing-files-in-node-js – Casper Dec 19 '17 at 06:22
you cant do this.if you are saving it on to db then read about RDBMS or nosql databases. – zabusa Dec 19 '17 at 06:32
@zabusa Should I save it in a different format than db? like sql? – Dec 19 '17 at 06:37
@kararara please read documentation about how to save file in a db.like mysql using node – zabusa Dec 19 '17 at 06:52
I've read it all, I do not know. help .. – Dec 19 '17 at 07:41

How to save data received by serial communication as db file in node js?

0 Answers0