Native interop has long been a bottleneck for #Java in #IoT. The FFM #API changes that. @FrankDelporte explains how #Pi4J reduces dependencies, improves compatibility, and simplifies hardware access.
See how this affects real-world systems: https://javapro.io/2026/04/01/the-ffm-api-openjdk-changed-the-game-for-native-interactions-and-javaonraspberrypi/
Velxio is an open-source, self-hosted Arduino, Raspberry Pi, and ESP32 simulator
Velxio is an open-source, self-hosted simulator for Arduino, ESP32, and Raspberry Pi boards that works directly in your web browser. You can drag-and-drop boards, connect components and modules, write and run code in Arduino or Python, and access the serial console, all without hardware. If it looks similar to what the Wokwi simulator has to offer, it's because Velxio was inspired by it and even integrates the AVR8 CPU emulator, RP2040 emulator, and QEMU fork for ESP32 Xtensa emulation from the Wokwi project. But the key difference is that Velxio can be self-hosted, although there's also an online demo. Velxio currently supports 19 targets across five architectures AVR8 (ATmega / ATtiny) Arm Cortex-M0+ (Raspberry Pi RP2040) RISC-V RV32IMC/EC (ESP32-C3 / CH32V003) Xtensa LX6/LX7 (ESP32 / ESP32-S3 via QEMU) Arm Cortex-A53 (Raspberry Pi 3 Linux via QEMU) The project also offers 48 components. The developer mentions that additional features compared to
I just set up a hardware watchdog on YunoHost to monitor my connectivity using the watchdog systemd service. If I can't ping 8.8.8.8 for 30 minutes, it'll trigger a reboot.
I've been having issues where my RPi4 server suddenly lost the internet connection... I disabled EEE, which hopefully fixed that, but having some extra security like this probably won't hurt.
We've been dreaming about hardware hacking for a few years and have finally gotten together the pieces we need. With lots of research, waiting, soldering, and fussing with APIs, Ben, Karlie, and Andy put together about twenty of these gadgets over the course of a few months. These are powered by the Raspberry Pi Pico with a Pico Display on top — just 2in long and 1in wide! We did a dry run making weather displays in the studio yesterday, then got the students set up with them at Ben’s MIT information design class today. We had so much fun playing with these and can't wait to tinker again!
Last year my aunt let me add her original Tangerine iBook G3 clamshell to my collection of old Macs1. It came with an AirPort card—a $99 add-on Apple made that ushered in the Wi-Fi era. The iBook G3 was the first consumer laptop with built-in Wi-Fi antennas, and by far the cheapest way to get a computer onto an 802.11 wireless network.
JAVAPRO
peppe8o
cnx-software.com
Léonard Urban
5h15h
Sebastiaan Ammerlaan 🇳🇱
Trezzer (aka Helvedeshunden)
Fathom Information Design