Posts 274
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 . On June 30th of 2022, Raspberry Pi …
Schedule your holiday for 2038
The end of the year is approaching, so it’s time to start scheduling your holidays for the next year. But I decided to go a step further and already planned those for 2038! …
JavaFX Links of November 2022
Time flies when having fun… So here we are again, another month has passed and this is a summary of the Links Of The Week that were published on jfx-central.com during …
About Twitter and Mastodon
Twitter has been my “source of truth” for a very long time. I learned a lot from the many technical people who share their work and knowledge on it. It got me in …
Shopping list for JavaOnRaspberryPi
After my talk at J-Fall I got the question what is required to get started with #JavaOnRaspberryPi. In my book I list the components that are used, but indeed a short overview was …
JavaFX Links of October 2022
When I (re)started the JavaFX Links Of The Week on jfx-central.com in September, I was wondering if there would be enough material to share every week.
Book review - Learn JavaFX Game and App Development with FXGL 17
This summer I read the book “Entreprenerd” by Bruno Lowagie . It tells the story of how he started with the iText PDF Java library and turned that into a company …
Devoxx Belgium and J-Fall The Netherlands - Links
Links used in my talks at Devoxx 2022 (Antwerp, Belgium) and J-Fall (Ede, The Netherlands).
JavaFX Links of September 2022
The JavaFX links of the week are back on jfx-central.com , and here we collect the complete month for you in an excellent overview.
Create Music Bingo cards with iText
It has been a while since I last had to create documents in a program, and iText has been “on my radar” to try out for a while now. This weekend we had a party and …
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. One of my main interests has always been clean, easy-to-understand …
Er zit slechts een paar 1000km tussen geluk en miserie
English version below Ik heb een vrouw, kind, hond en kat. Mijn Java-collega waar ik al meer dan een jaar dagelijks mee samen werk, heeft ook een vrouw, kinderen, hond en kat. We …
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. But a lot …
Starting a new JavaFX projeect in IntelliJ IDEA
On the OpenJFX website you can find a lot of getting started documentation . But as one image/video says more than a thousand words, I created this short movie to show you that …
3D printed Pinecel soldering iron holder
The Pinecil is a very handy and affordable USB-C powered soldering iron (running on open firmware!) with an OLED monochrome display. This soldering iron is made by PINE64 , and is …
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. The test setup for this project was …
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. I have a lot of Raspberry Pi boards …
3D printed multi-functional tripod (well actually quadpod)
The power of technology is something that keeps amazing me every day. The number of things you can do with some small electronic components and a bit of programming is …
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? Build one yourself with a …