Tagged "Raspberry Pi"

Review of the Elecrow Raspberry Pi Pico Advanced Kit

People who follow me, know I’m a big fan of the Elecrow CrowPi, the little suitcase with a Raspberry Pi and a lot of electronic components included.

Links of the Presentation: What I Learned About OpenJDK As a Docs Writer

These are all the links of my presentation at the JChampions Conference, Monday January 29, 2024, 16:00 CET.

Running a CRaC Java application on Raspberry Pi - UPDATE

On July 15th of 2023, I published a post here about my initial experiments with CRaC on the Raspberry Pi.

Controlling LED strips with Java

One of the most “fancy” electronic components is definitely a LED strip.

Links of the Presentation: Unlocking the Potential of Bits and Bytes

These are all the links of my presentation at Devoxx Belgium, Wednesday 12:00-12:50, Room 7.

Pi4J Operating System for Raspberry Pi

Yes, the Raspberry Pi Operating System is awesome! But the Pi4J project made it if even more awesome by adding “goodies” for Java developers!

Reading the temperature, humidity, and pressure from a BME280 Sensor with Java, Pi4J, I2C, SPI, and JBang

To make it as easy as possible to get started with Java on the Raspberry Pi to interact with electronic components, I started a new section on the Pi4J website with JBang examples.

Running a CRaC Java application on Raspberry Pi

With the April release of the Zulu Build of OpenJDK, Azul announced the integration of CRaC in its version 17 of Java for Linux.

Interview by Bazlur Rahman: Unlocking Java Secrets with Frank Delporte - Insights, Stories, and Tips for Success

On Foojay.io, Bazlur Rahman is publishing a series of interviews with various people from the OpenJDK community.

Using the Raspberry Pi Autofocus Camera Module 3 as HDMI camera

More than two years ago, I blogged about the use of the Raspberry Pi as an HDMI camera for the ATEM Mini.

HiveMQ Cloud, part 4 - Sending sensor data from Raspberry Pi Pico W to HiveMQ Cloud

Exactly one year ago, in December 2021, I published three articles of MQTT messaging with Raspberry Pi, Raspberry Pi Pico and HiveMQ Cloud.

Shopping list for JavaOnRaspberryPi

After my talk at J-Fall I got the question what is required to get started with #JavaOnRaspberryPi.

Devoxx Belgium and J-Fall The Netherlands - Links

Links used in my talks at Devoxx 2022 (Antwerp, Belgium) and J-Fall (Ede, The Netherlands).

Blink a LED and read a button state with Vaadin, Spring and Pi4J on a Raspberry Pi

As I’m becoming a senior developer in terms of age, I’ve transitioned from one language to another.

Installing Java with SDKMAN on Raspberry Pi

If you create a new SD card for a Raspberry Pi with the operating system, you can choose the “Raspberry Pi OS Full (32-bit)” edition, which includes Java 11.

3D printed Raspberry Pi Arcade box

As part of the Pi4J project, we created an example game with JavaFX and FXGL that uses an Arcade kit with a Joystick and big push buttons.

3D printed Raspberry Pi Organizer

After my first 3D-printing experiment “A 3D printed multi-functional tripod (well actually quadpod)”, I wanted to clean-up my desk.

3D printed multi-functional tripod (well actually quadpod)

The power of technology is something that keeps amazing me every day.

Multicam recordings with ATEM Mini and Raspberry Pi cameras

As I wrote in my previous post “Using a Raspberry Pi as HDMI camera”, you can build your own inexpensive HDMI-camera with a Raspberry Pi Zero and a camera module.

Using a Raspberry Pi as HDMI camera

TL;DR; Yes, you can build your own Raspberry Pi HQ camera to use as an HDMI source for the ATEM Mini Looking for an affordable camera with HDMI output?

HiveMQ Cloud, part 3 - Sending sensor data from Raspberry Pi Pico to HiveMQ Cloud

In the previous two posts in this series, we used Java on the Raspberry Pi mini-computer to send sensor data to HiveMQ Cloud, and visualize it on a dashboard.

HiveMQ Cloud, part 2 - Using MQTT and Raspberry Pi to Visualize Sensor Data on a TilesFX Dashboard

In the previous post we started our discovery of HiveMQ Cloud with Java on the Raspberry Pi.

HiveMQ Cloud, part 1 - MQTT on Raspberry Pi, Send Sensor Data to HiveMQ Cloud with Java and Pi4J

A few years ago I did my first experiments with an MQTT server (Mosquitto) running on a Raspberry Pi to connect an Arduino and Raspberry Pi for the drumbooth of my son.

JavaFX running in kiosk mode on the Raspberry Pi

The Raspberry Pi in combination with an inexpensive touch screen, makes a perfect controller for a machine or game console.

Device monitoring tool with JavaFX, FXGL and Mosquitto

In a previous post “Getting Started with FXGL Game Development” we already have taken a look at the FXGL game development framework developed by Almas Baimagambetov.

JVM Advent 2020 - Light up your Christmas lights with Java and Raspberry Pi

Are you a serious Java-developer looking for a fun project? Or want to learn something completely new and use your Java-knowledge to control electronic components?

JFXDays presentation - Having fun with Java and JavaFX on the Raspberry Pi

Today I could give my talk “Having fun with Java and JavaFX on the Raspberry Pi” at the JFXDays.

Devoxx Ukraine presentation - Having fun with Java and JavaFX on the Raspberry Pi

Today I had my first Devoxx talk, after my Java virtual talk a few weeks ago at the “Oracle Groundbreakers APAC Virtual Tour 2020” conference (21/10)!

JavaFX 3D - A Look Back Through History & Some Experiments

After my virtual conference talk “Java and JavaFX on the Raspberry Pi” at the “Oracle Groundbreakers APAC Virtual Tour 2020”, I got in touch with some people who were working on JavaFX 3D in the past, and were curious how that would behave on the Raspberry Pi.

Ubuntu desktop on Raspberry Pi 4

Yesterday evening Ubuntu announced the release of Ubuntu 20.10 “Groovy Gorilla” with desktop support for the Raspberry Pi 4 (4 and 8Gb).

APACOUC presentation - Java and JavaFX on the Raspberry Pi

Today I had the honor to speak at the “Oracle Groundbreakers APAC Virtual Tour 2020” conference.

Building OpenJDK on Raspberry Pi

The OpenJDK sources are now fully available and developed on GitHub as a result of Project Skara.

Visual Studio Code on the Raspberry Pi (with 32 and 64-bit OS)

In my book “Getting Started with Java on the Raspberry Pi”, I give more info about IDEs (= Integrated Development Environment) for Java development.

Using Pi4j (V1) on the Raspberry Pi 4

A topic which comes up from time to time in questions related to Java and the Raspberry Pi, is the support of the 4th version of this board in combination with Pi4J, “the friendly object-oriented I/O API and implementation library for Java programmers to access the full I/O capabilities of the Raspberry Pi “.

64-bit Raspberry Pi OS on Raspberry Pi 4 with USB BOOT

A micro SD card is the default way to add an operating system to the Raspberry Pi.

Spectacular Java projects on Raspberry Pi

Thanks to Twitter and LinkedIn I got into contact with several developers who are doing Java stuff on Raspberry Pi and I want to share those projects with you as they can be an inspiration for all of us to get started with Java development on the Raspberry Pi.

Azul Zulu OpenJDK 15 on Raspberry Pi

For this post I did some experiments with Java 15, reusing the Ubuntu 64bit SD card which was also used for the earlier post “Comparing a REST H2 Spring versus Quarkus application on Raspberry Pi”.

Why you should learn to program on the Raspberry Pi

In this article “Java vs Python - Which Programming Language Should Programmer Learn First?

How to install and use Java 11 and JavaFX 11 on Raspberry Pi boards with ARMv6 processor

In a previous post “Installing Java and JavaFX on the Raspberry Pi”, you can read how to install BellSoft LibericaJDK to be able to run JavaFX applications with a graphical user interface on a Raspberry Pi with ARMv7 or ARMv8 processor.

Comparing a REST H2 Spring versus Quarkus application on Raspberry Pi

Goal of this comparison In my previous post “A Spring REST and H2 database application on the Raspberry Pi” an example was described to store sensors and measurements in a H2-database through REST API’s with a Spring application on the Raspberry Pi.

A Spring REST and H2 database application on the Raspberry Pi

Java on Raspberry Pi The “Pi” in the name of the Raspberry Pi refers to Python, but as a Java developer I love to know and experiment with the various Java frameworks I also use at work.

Joining the Pi4J team

In my book “Getting Started with Java on Raspberry Pi” I dedicated a chapter on Pi4J, the leading framework to combine the power of Java with the hardware capabilities of the Raspberry Pi.

The MagPi step-by-step video

In “The MagPi Magazine” #93 and #94, published by the Raspberry Pi Foundation, you can find two articles which describe how you can get started with Java, Maven, Visual Studio Code and Pi4J on the Raspberry Pi.

Installing Java and JavaFX on the Raspberry Pi

One of the most read articles on this blog is about the installation of a recent Java on Raspberry Pi (March 13, 2019), so it’s time for an update!

Drumbooth controller with Raspberry Pi, JavaFX, and Arduino

Based on multiple examples from my book “Getting started with Java on Raspberry Pi”, I created a touchscreen controller for the drum booth of my son.

Raspberry Pi and SPI 8x8 LED matrix example with Java and Pi4j

While looking for a cheap and nice component to demonstrate the use of SPI (Serial Peripheral Interface) I found out this 8x8 matrix LED display on a board with a MAX7219 chip is the perfect piece of hardware!

OpenWeatherMap forecast on LCD with Raspberry Pi, Java and Pi4J

Pi4J contains helper methods to minimize the work needed to use certain hardware modules on the Pi with Java.

Reactive Spring Flux data from a Pi

Trisha Gee (Coder, blogger, speaker, Developer Advocate at JetBrains, @trisha_gee), which I interviewed for “Chapter 4: Choosing an IDE”, and Josh Long (Spring Developer Advocate at Pivotal, @starbuxman) worked together on a blog series in which they showed the power of reactive data produced by a Spring application.

Controlling a LED number display with JavaFX and Python on Raspberry Pi

In my book I explain the use of bits and bytes by using a shift register SN74HC595 IC and 5101AS LED number display.

Raspberry Pi history, versions, pins and headers as a Java Maven library

The best way to understand and learn something new, is to document it yourself.

Controlling Arduino with Mosquitto and JavaFX on Raspberry Pi

One of the example applications in my book “Getting started with Java on the Raspberry Pi” combines a JavaFX application with Mosquitto on the Raspberry Pi to control a LED strip with an Arduino.

Clean Raspberry Pi GPIO testing with the Breadboard Pi Bridge

Some time ago I ordered a “Breadboard Pi Bridge - Pi Ports to Breadboard in Numerical Order” and reworked my Pi test setup from the previous blogs.

Pi4J to easily work with the hardware of a Raspberry Pi with Java

What is Pi4J See https://www.pi4j.com/1.2/index.html This project is intended to provide a friendly object-oriented I/O API and implementation libraries for Java Programmers to access the full I/O capabilities of the Raspberry Pi platform.

Pi4J - Adding a REST interface with Spring Boot

As I was learning Spring Boot myself, I thought the easiest way to learn was trying to build an example and write about it.

Pi4J - Extending with a JavaFX info application

While trying out what Pi4J can do, I found it could easily be extended with a JavaFX application to provide info about the headers on a Pi board.

PiJava overview - Java 11 and JavaFX 11 on Raspberry PI

As my daily work mainly is Java and back-end stuff on “real servers”, I set myself for 2019 as a personal goal to experiment with Java 11 on a Raspberry PI.

PiJava - Part 6 - JavaFX 11 on Raspberry PI with TilesFX and GPIO

What we will do Based on the previous blog posts

PiJava - Part 5 - Running the minimal JavaFX 11 application on Raspberry PI

In part 2 of this blog series Java 11 was successfully installed on a PI.

PiJava - Part 2 - Installing Java 11 on a Raspberry PI 3 Model B+

After my first (and failed) attempt to get Java 11 running on an old Raspberry PI, I bought a brand new 3 Model B+ version.

PiJava - Part 1 - Trying to run Java 11 on an old Raspberry PI

One of my goals for 2019 is experimenting with the latest Java and JavaFX versions on a Raspberry PI.

Pong on a Raspberry PI

As a self-study project I experimented to create a Pong game + slide shown on a Raspberry PI with Tkinter, GPIO and physical buttons.

Getting Started with Java on the Raspberry Pi

For sale as ebook on Leanpub, with continuous free updates!