Qt 5.12.3 MQTT

PePoM

Hi,
Can I use Qt MQTT on an embedded device that supports only Qt version 5.12.3?. On market place it says that supported versions are 5.15.1+. After checking out github it seems that this library was used witch older Qt versions.

SGaist

Hi and welcome to devnet,

AFAIK, you can. As for the minimum version, Qt 5.15 is the current supported LTS of the Qt 5 series so I think it's related to that.

PePoM

HI @SGaist, thanks for welcoming. I have a bonus question, I am a bit confused about Qt licensing, if I purchase Qt MQTT from the market place will I be able to install it using maintenance tool and just link it to the project then use it commercially ?(id like to avoid building it from source). I noticed that this library is part of Qt for automation, can I use Qt MQTT standalone or I need to purchase additional libraries to make it work?
PS: I am a long time lurker on this forum and I am amazed by your contribution to this community, you helped me many times involuntary on my Qt journey. Thanks.

SGaist

You don't need Qt for Automation. It just says that if you have that licence, then you don't need to buy QtMqtt from the Market Place separately.

As for the pre-built nature, sorry I do not know. Note that building that module is not that hard. You open it in Qt Creator, build it, and you can even add a custom build step that calls make install.