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Topic: Graph an analog signal (Read 110 times) previous topic - next topic

miguel27

Hi Everybody,

Can we make a graph of an analog external signal with arduino??? My idea is use a little current transformer that gives me 0 to 5V. I want to graph the current of the motor in the time but i dont know how to do that. Any suggestions?

Best regards,
Miguel Sepulveda

vaj4088

It depends somewhat on what resources you have.

I like to output data to the serial port, copy it and then paste it into OpenOffice Calc for graphing.  I suppose you could paste into Microsoft Excel and graph it there as well.

Of course, if you have complete control over a graphical LCD, I suppose that you could plot some data there as well.

You need to figure some things out, such as how many samples over what period of time, taken with what resolution and displayed with what resolution.  It may also help to know what Arduino you have and what other hardware to which you have access.  How quickly you want something done may play a role as well.




CrossRoads

Have you tried this?
https://www.arduino.cc/en/Tutorial/Graph
Check File:Examples:Communication:Graph
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

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