Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Misfit Shine - Fitness + sleep monitor
ioBroker - flexible and modular application for the IoT and Smarthome
Android Things Lantern - Real-world AR with Google's new IoT platform
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation
BenQ ScreenBar - e-Reading Lamp for digital screen time