Data Logging Experiments are created by going to the File menu, select New, then select Datalog Experiment.

If your EV3 Brick is turned on and connected, the Data Logging environment will open in Oscilloscope Mode. If an EV3 Brick is connected while in the Data Logging environment, the Oscilloscope Mode will automatically turn on. Click Start/Stop Oscilloscope Mode to turn this mode on and off.

Start / Stop Oscilloscope Mode

	Experiment Configuration: Set up the experiment
	Dataset Table: Change the plot styles and visibility of each dataset
	Dataset Calculation: Perform calculations on existing datasets
	Graph Programming: Create real-time actions depending on the sensor values

Experiment Units Setup

Choose the Duration and Rate for the experiment.

Sensor Setup

Select the Sensors to be logged. See Experiment Configuration for more information.

Doing the Experiment

When the experiment is set up, you can do the experiment in real-time or remote mode. Use the buttons on the Hardware Page to select the mode you want.

	Download: Download the experiment for Remote mode
	Download and Run: Do the experiment immediately in Real-time mode
	Upload: Upload the data after the Remote mode experiment

Real-time mode

Real-time mode needs the EV3 Brick connected to the computer. The sensor data is sent to the Data Logging Graph as it is measured.

Click Download and Run on the Hardware page. The experiment starts immediately, and the graph will update with the sensor values in real time.

Remote Mode

Remote mode allows you to download the experiment to your EV3 Brick, then disconnect it, and do the experiment. After the experiment is done, connect to the computer and upload your results.

Click Download to load the experiment into your EV3 Brick. You can now disconnect your EV3 Brick. To run the experiment from the EV3 Brick, go through the following steps:

1.	Ensure the EV3 Brick is turned on.
2.	Navigate to your experiment using the EV3 Brick buttons.
3.	Press the Centre button to run the experiment.

When your experiment is completed, you will need to upload the results to the computer. See Uploading Datasets from your EV3 for more information.

Once uploaded, the Graph Area will display the dataset.

Y-Axis Units

Y-Axes

Sensor Type and Port Identification

Graph Area

X-Axis

Duration Unit

You can change the Colour and Plot Style in the Dataset Table tab.

Data Logging Toolbar

Select tool:
Pan tool:
Predict tool:	Make predictions about how you expect the data from the experiment to look.
Analyse tool:	Analyse specific parts of the data.
Comment tool:
Screenshot:	Take a picture of your Graph Area.
Save Project
Undo, Redo:
Zoom:	Zoom Out, Zoom In, Zoom Reset

Comment Tool

Use the Comment tool to enter comments in the Graph Area. You can give the comment a heading. You can drag the comment box to where you want it, and minimize or maximize it.

Changing the Y-Axis scale

The scale on the Y-Axis can be changed to best display your data. Hover over the Y-axis to see either the Full Scale or Auto Scale arrows.

Full Scale

Auto Scale

Choose Full Scale to scale the Y-Axis to the maximum range of a sensor. For example, Full Scale is 0 to 8 for a Colour Sensor in Colour mode, and 0 to 100 for a Colour Sensor in Reflected Light Intensity mode.

Choose Auto Scale to scale the Y-Axis to the minimum and maximum values of the data collected. For example, if a Motor Rotation sensor only moved between -180 degrees and +180 degrees in the experiment, then these would be the new minimum and maximum values for the Y-Axis.

You can manually set the maximum and minimum values for the Y-Axis and X-Axis by clicking on the numbers on the axes and changing them.