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by FrankDelporte
Thu Feb 25, 2021 6:57 am
Forum: Java
Topic: I2C Remote I/O Error
Replies: 2
Views: 120

Re: I2C Remote I/O Error

Not clear from the question how this is application is started, so just to check, did you try running the program with sudo on the Pi itself?
by FrankDelporte
Sun Jan 17, 2021 8:23 am
Forum: Java
Topic: Spring Boot and Pi4J Lib with MCP23017
Replies: 2
Views: 334

Re: Spring Boot and Pi4J Lib with MCP23017

Indeed Pi4J V1.2 and V1.3 use Java 8, next versions will allow you to use newer ones. V2 (early access, not released yet) is aimed at Java 11+ - https://v2.pi4j.com/ If you want to get started with the V2 version, you can find a full example described on https://v2.pi4j.com/getting-started/minimal-e...
by FrankDelporte
Mon Dec 09, 2019 9:20 pm
Forum: Java
Topic: Java IDE for Pi 4 - need to create simple GUI
Replies: 4
Views: 1868

Re: Java IDE for Pi 4 - need to create simple GUI

AdoptOpenJDK Java 11 version which is preinstalled on the Pi doesn't include JavaFX, so you need to install it separatly.
You can find more info on this blog post series: https://webtechie.be/2019/04/03/pijava- ... spberry-pi

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