# SoftBank Robotics documentation What's new in NAOqi 2.8?

# Memory watcher panel

## What is the Memory watcher panel

The Memory watcher panel allows you to display the value of events or data during the execution of a behavior.

Warning

Memory Watcher is a convenient tool for a global overview of all events and data available in ALMemory.

Data coming from the sensor are pushed into ALMemory at 2Hz, thereby, Memory Watcher is not the right tool to manage sensor data at a high rate,

Memory watcher has a Recording function allowing you to save a CSV file containing the history of event or data values during the recording.

Column | Contains
--- | ---
Name | Names of selected Memory keys.
Nature | DATA / EVENT.
Value | Values of the Memory keys, updated according to Period.

## Available Memory keys

Be aware that the Memory keys displayed by the Memory watcher depend on the robot Choregraphe is connected to:

A ... | Will display ...
--- | ---
Real robot | All possible Memory keys for the robot.
Choregraphe simulated robot | A fewer amount of Memory keys, according to its simulated skills: Example: no camera, no battery.
Simulated robot evolving in a virtual 3D world | Memory keys related to the perceived virtual world. Example: virtual camera but still no virtual battery.

## Selecting Memory key to watch

To select the set of Memory keys to watch:

Step | Action
--- | ---
| Double-click the empty line displaying the <Select memory keys to watch>. The list of available Memory keys is displayed.
| Click the checkboxes to select Memory keys.
| Click the OK button.

## Setting the refresh period

The Memory watcher panel is getting periodically information directly from the robot, by request.

Setting the refresh period allows the user to set the time to wait between two requests.

## Recording changing values of the Memory keys

To record Memory keys evolution:

Step | Action
--- | ---
| Select Memory keys to watch.
| Set the refresh period.
| Click the Start Recording button.
| Launch the behavior you want to audit.
| When the behavior to survey is done, click the Stop Recording button. You are then prompted to save the CSV file.

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