Qtrpi

Introduction

To deploy Qt applications on a Raspberry Pi, you need to have cross-compiled your Qt dependencies. QtRpi is an open-source project that offers you:

• All you need to cross-compile the Qt framework yourself (optional)
• Precompiled Qt binaries for your Raspberry Pi
• An easy-to-use environment to cross-compile your Qt Raspberry Pi application from your computer

Requirements

• A 64-bit Linux host computer
• A SSH reachable RaspberryPi

Installation

• init-qtrpi-minimal: Configure your host computer to be able to cross-compile Qt 5.7.0 applications for your Raspberry Pi 3. Downloads ready-to-use Qt binaries for the Raspberry Pi and a minimal sysroot
• deploy-qtrpi: Deploy the compiled Qt binaries on your Raspberry Pi

git clone https://github.com/neuronalmotion/qtrpi.git
cd qtrpi
export QTRPI_QT_VERSION='5.7.0'
export QTRPI_TARGET_DEVICE='linux-rpi3-g++'
export QTRPI_TARGET_HOST='pi@192.168.1.12'
./init-qtrpi-minimal.sh
./deploy-qtrpi.sh --prepare-rpi

Usage in CLI

Cross-compile your project for a Raspberry Pi with the CLI:

cd myproject
/opt/qtrpi/bin/qmake-qtrpi
make

Usage in QtCreator

How to build a Raspberry Pi 3 application from your desktop Qt Creator (Youtube video)

https://www.youtube.com/watch?v=1d2bh7iUKNc

Supported version

Raspberry Pi: 1, 2 and 3

Qt: Qt 5.7.0, Qt 5.6.2 (LTS)

Qt Modules: Qt Base, Qt Declarative (Quick 2), Qt Quick Controls, Qt Quick Controls 2, Qt 3D, Qt Serial Port, Qt SVG

More information

• QtRpi mwebsite
• QtRpi GitHub repository

References

• https://wiki.qt.io/RaspberryPi_Beginners_Guide
• https://wiki.qt.io/RaspberryPi2EGLFS
• https://wiki.qt.io/Native_Build_of_Qt5_on_a_Raspberry_Pi