Mqtt

github
https://github.com/sweharris?tab=repositories links to https://rayshobby.net/wordpress/reverse-engineer-wireless-temperature-humidity-rain-sensors-part-1/. See Arduino irrigation https://github.com/blakeblackshear/dhcp2mqtt linked from Streaming RTSP to https://github.com/blakeblackshear/frigate object detection. https://www.baldengineer.com/mqtt-introduction.html message broker for IoT. Raspberry_pi qt5 gui on lcd for raspberry with mosquito mqtt messaging broker for IoT by baldengineer.com

links
CAN bus

chibios in ESC speed control

Raspberry pi

State machine