Using Events and Callbacks with Bluetooth

You can enhance the power and flexibility of your instrument control application by using events. An event occurs after a condition is met, and might result in one or more callbacks.

While the instrument object is connected to the instrument, you can use events to display a message, display data, analyze data, and so on. Callbacks are controlled through callback properties and callback functions. All event types have an associated callback property. Callback functions are MATLAB functions that you construct to suit your specific application needs.

You execute a callback when a particular event occurs by specifying the name of the callback function as the value for the associated callback property.

The Bluetooth event types and associated callback properties are described below.

Event Type	Associated Property Name
Bytes-available	BytesAvailableFcn BytesAvailableFcnCount BytesAvailableFcnMode
Error	ErrorFcn
Output-empty	OutputEmptyFcn
Timer	TimerFcn TimerPeriod

These are the same callbacks that are commonly used by other interfaces in the Instrument Control Toolbox.

Reading and Writing Data Over the Bluetooth Interface

Bluetooth Interface Usage Guidelines

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