Brillo is an Android-based operating system developed by Google for Internet of Things (IoT) devices. It uses a minimal Linux kernel and supports Android apps. Brillo was announced in 2015 to support devices with limited resources. It uses the Weave communication protocol and aims to securely connect IoT devices to cloud services and each other. Brillo focuses on low power usage and includes features like speech recognition and image search. While it could enable many applications, concerns exist around cost, privacy and job disruption as devices become more automated.