The Wait is Over: Foreign Function & Memory API brings modern Java to the Pi

on YouTube ↗43m

" summary

Pi4J moves from JNI/JNA and multi-layer native builds to a new Pi4J FFM plugin that runs on Java 25 with FFM API, removing C headers, Docker builds and extra JARs so maintenance and contributors see only Java code. Benchmarks show native memory access cuts copying and can be up to 11x faster for buffer updates. Live demos include blinking RGB LEDs, buttons, an ultrasonic distance sensor, LCD output and a Vaadin web UI served from a Raspberry Pi 5; examples run via JBang and the plugin is available now.

AI-written summary · about

" chapters (13)

1. 0:00Introduction and speaker intro
2. 1:17Pi4J library and JNI challenges
3. 8:18Project Panama and FFM API
4. 13:38FFM API examples and performance
5. 17:28Pi4J plugin with FFM API
6. 20:44Pi4J FFM release and benefits
7. 25:05CrowPi demo and Java on Raspberry Pi
8. 28:54Blinking LED with Pi4J
9. 31:04Distance sensor demo
10. 32:50Vaadin UI on Raspberry Pi
11. 36:30Live Vaadin demo
12. 39:06Future of Java on Raspberry Pi
13. 40:14Q&A session

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