This example shows how MyViz, running on your computer, can communicate with an Arduino Uno through a serial link.
The files can be downloaded for the following systems:
- Windows: https://github.com/3sigma/MyViz_Tutorials/tree/master/Tutorials_Windows/SerialPort_1
- Linux: https://github.com/3sigma/MyViz_Tutorials/tree/master/Tutorials_Linux/SerialPort_1
- Mac OS X: https://github.com/3sigma/MyViz_Tutorials/tree/master/Tutorials_OSX/SerialPort_1
In order to run this example, you need to follow these steps (provided that MyViz is already installed):
- Download the files somewhere on your computer
- Connect your Arduino board to your computer
- Upload on this board the sketch “Tutorial_SerialPort_2.ino”, located in the “Arduino” folder of the archive. As you will see in this sketch, data to be sent and data that are received are just comma-separated
- Run MyViz. It opens with an empty window:
- Click on “Load Dashboard” and open the file “Tutorial_SerialPort_2.json”, located in the “Dashboard” folder of the archive. You will probably get an error like this:
Don’t panic: this error just means that you need to change the name of the serial port in this dashboard:
- click on the icon on the top-middle of the window in order to activate the “Edit” mode and click on the name of the datasource (“sp”):
- You can then replace the name of the serial port by the one used by your Arduino board. Don’t hesitate to take a look at how sent and received data are defined: you give them an arbitrary name in this interface and this name is used in the widgets to display or control these variables
- If it works, you can:
- click on the LED switch to switch on or off the LED of your Arduino
- move the slider, to see the plot of the value sent back by the board
- connect the analog inputs A0 and A1 to any sensor to see their values plotted in real time
- modifiy the multiplication factor for these inputs
- If you still don’t see values “moving”, double check the name of the serial port connected to your Arduino
- To edit the dashboard, click on the icon on the top-middle of the window. Then you can modify any widget and learn how MyViz works:
