Velxio 2.0 enables emulation of Arduino, ESP32, and Raspberry Pi 3 directly in web browsers. The GitHub repository states that Velxio 2.0 provides browser-based emulation for these hardware platforms (https://github.com/davidmonterocrespo24/velxio). Users can simulate the devices without physical hardware according to the primary source. The project page confirms expanded support for Arduino, ESP32, and Raspberry Pi 3 in version 2.0 (https://github.com/davidmonterocrespo24/velxio).