Hi @Paul-Koene, This is something we are working on. To wrap the irq into the edge file for the sysfs API of GPIO. You can take a look at what's already available here: https://github.com/OnionIoT/gpio-irq. You can already receive a hardware interrupt signal from the kernel, however we just have to wrap that into a better interface to make it accessible via PHP, Pythong, etc.