A gateway for 433 MHz devices
It uses rc_switch library for controlling wall sockets.
It also supports receiving commands from the same protocol.
It acts as a serial gateway and it is connected to a Raspberry Pi running Home assistant.
It uses an Arduino Pro Mini 5v 16 Mhz. The original bootloader has been replaced with Optiboot using this tutorial: https://andreasrohner.at/posts/Electronics/How-to-make-the-Watchdog-Timer-work-on-an-Arduino-Pro-Mini-by-replacing-the-bootloader/