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Introduction

This is a guide for cross-compiling Qt 5.15.2 for Raspberry Pi 4 and installing it on Compute Module 4. It is an update to my blog post...

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Introduction

This is a guide for configuring Qt Creator in order to be able to use cross-compiled Qt libraries for the Raspberry Pi 4 and create applications for the Raspberry.

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In this blog, I would like to provide a small Qt-Quick application (qml) as an example for a Modbus connection via TCP/IP.

In the Qt examples, I only found QWidget examples for Modbus...

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Introduction

This is a guide for installing Raspberry Pi OS Lite on the Compute Module 4. For my working computer, I use Ubuntu 20, installed on a virtual machine.

Sources...

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Qt is often used to develop graphic interfaces. Qt contains C ++ libraries for creating graphical interfaces that can be...

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You can also use the Raspberry Pi 4's USB-C interface, which is normally used to provide a power supply, as a normal USB interface. However, in that case, the Raspberry should supply power via the...

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Frequent writing or overwriting of data negatively affects the lifespan of an SD card.

For applications that often use temporary data (e.g., sensor values for comparative calculations)...

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The aim was to write a Qt application for the Raspberry Pi 4 with which you can switch between different WLAN access points and save the associated credentials. As a starting point, I used a...

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I recently had to develop an application (kiosk system) for/on a Raspberry Pi 4. The special thing about it was that 2 touch monitors were to be connected via HDMI, which also had to be rotated 90...

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If you have created a Qt application – or any other application – for the Raspberry Pi 4, you will very often want to have the application called up immediately after the Raspberry is restarted,...