Mobile and Embedded

@piervalli thank you so much for the provided links, this worked for me

thank you but i dont find anything useful

Hi, @piyushverma said in Custom Hardware KeyBoard Driver for QT5: Which qt code handle capslock and numlock on linux ? None, that happens at a lower level. For capslock, your application will receive the key events with the key and modifier as if your were pressing both for each entry. For numlock, you'll have to use native APIs. How is your custom keyboard seen by your system ?

@Augustas HI any success with that ? Best Regards Marek

Hi @sraavya, what do you mean with "challenges"? In principle, Qt CAN bus should work with Qt 5.9.6, but upgrading to latest Qt 5.15.x or Qt 6.2.x is recommended. Regards

I don't think you need to copy them to libs folder but rather into src/main/jniLibs/ABI. See https://developer.android.com/studio/projects/gradle-external-native-builds#jniLibs for more details.

It does not matter how robot is connected. Qt mqtt goes with your qt app. You may have to use mqtt + C++(or whatever, java, or c) inside robot since you do not use qt in the robot. You can do it, but it is not necessary.

@Sachin_Sanghani said in QCanBusDevice writeFrame fails with error "Cannot write invalid QCanBusFrame": I found what was the wrong with code. Great. So could it be possible you share with the community some explanation about the wrong code (or a code snippet perhaps). Thanks.

@SGaist Yes, I forgot it. Fixed this by adding Svg: find_package(Qt6 COMPONENTS Core Gui Quick Qml Multimedia LinguistTools Svg REQUIRED) target_link_libraries(${PROJECT_NAME} PRIVATE Qt6::Core Qt6::Gui Qt6::Quick Qt6::Qml Qt6::Multimedia Qt6::Svg)

@XinMouRen said in I can't connect to cloud services using MQTT: but cannot connect to the cloud service Please show some code snippet. Assuming you're using a QMqttClient object as MQTT client, have you connected the errorChanged() signal to some slot to check what could be going on? In addition, have you captured network traffic to see exactly what your application is sending to/receiving from the "cloud"?

@Dmitriano Probably I had some wrong build configuration, after some experimentation and switching to Java11 it become about 1MB.

hello,QWidget. Setmask() can you use it now in eglfs backend?

Which is the even generated when we press the "1/2" key in virtual keyboard ? [image: 26003391-1bb6-492c-8ea9-67b1fe349a8d.JPG] I see the signal for all others keys but when I click this it generates no event. I use below code in qml to check : TextInput{ .... Keys.onPressed: { console.log("Current KEY pressed :",event.key) } }