{"id":1868,"date":"2017-10-20T21:00:18","date_gmt":"2017-10-20T15:30:18","guid":{"rendered":"http:\/\/localhost:8081\/system-on-module-som\/?p=1868"},"modified":"2025-03-26T13:31:34","modified_gmt":"2025-03-26T08:01:34","slug":"qt-beyond-ux-use-esomimx6-rdk-ankaa","status":"publish","type":"post","link":"https:\/\/www.e-consystems.com\/blog\/system-on-module-som\/qt-beyond-ux-use-esomimx6-rdk-ankaa\/","title":{"rendered":"Qt Beyond UX – Use eSOMiMX6 RDK Ankaa"},"content":{"rendered":"

One thing I am tired of hearing about, is that people think Qt is only for developing rich GUI applications.<\/span><\/span><\/span><\/p>\n

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If you think Qt is only about building a UI, it\u2019s not \u2014 there are plenty of Qt libraries for internationalization, strings, threads, XML, and JSON parsing, databases, sockets, Bluetooth, sensors, NFC, event management, and more. <\/span><\/span><\/span>It is even possible to develop command-line tools and consoles for servers.<\/span><\/span><\/span><\/p>\n

Lets consider a use case to prove that Qt is beyond UX. Suppose you would like to build a bluetooth connectivity module o<\/span><\/span><\/span>n your embedded product <\/span><\/span><\/span>which can scan and connect to other bluetooth devices. W<\/span><\/span><\/span>hat does Qt offer? Lets see the details below. <\/span><\/span><\/span><\/p>\n

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This article guides you to build a Qt application to scan bluetooth devices in range by making use of e-con Systems\u2122\u2019 eSOMiMX6<\/a> based development kit Ankaa<\/a>.
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Over the years, <\/span><\/span><\/span>Bluetooth<\/span><\/span><\/span><\/strong> has become a popular technology allowing electronic devices to communicate wirelessly. It is basically a method for data communication that uses short-range radio links to replace cables between computers and their connected units. <\/span><\/span><\/span><\/p>\n

Qt provides its own API to use Bluetooth and enables connectivity between Bluetooth enabled devices which enables basic Bluetooth operations like scanning for devices and connecting them.<\/span><\/span><\/span><\/p>\n

The Bluetooth API provides connectivity between Bluetooth enabled devices. This is typically used for scanning the device ,pairing with device , transferring the data between the devices.<\/span><\/span><\/span><\/p>\n

QML uses a model, BluetoothDiscoveryModel<\/strong> which has the details of all scanned devices. This provides a model of connectable devices. This model is filled based on the enumeration set to discoverymode<\/em> property. Here as we are interested to scan devices we use BluetoothDiscoveryModel<\/strong>.DeviceDiscovery<\/strong>.<\/p>\n

This model has following roles:<\/p>\n