The module enables a Qt application to support accessibility features such as text-to-speech, which is useful for end-users who are visually challenged or cannot access the application for whatever reason. The most common use case where text-to-speech comes in handy is when the end-user is driving and cannot attend the incoming messages on the phone. In such a scenario, the messaging application can read out the incoming message. Qt Serial Port provides the basic functionality, which includes configuring, I/O operations, getting and setting the control signals of the RS-232 pinouts.