1-wire based boiler/DHW/distribution heating system controller
Monitor and control your home and several energy sources
Open IoT Framework
Building automation (like KNX or OpenHAB) software (like CometVisu).
gnhast - Garbled's NetBSD Home Automation Scripting Tools
Automated Irrigation Controller for computers
Quadcopter Remote Control by RaspberryPi
Another HMI/SCADA set of tools written in C++(Qt) with python bindings
Software controlling electric heaters
Use your arduino to control remote controlled sockets by SMJ.
LED Color Control System for RaspberryPi and Dreambox
Arduino-controlled thermostat and sensors management
System sterowania oświetleniem
send and receive artnet / art-net, more than DMX over ethernet network
Open Source PLC based on the arduino platform
Visual Automation & UI Authoring