Abstract: A multipurpose distributed building automation device, also known as a “smart home device”, and a method for implementing a distributed building automation network are provided. The devices according to the disclosure are used for controlling devices and building services technology in the context of building automation. The device according to the disclosure has a housing and a display and comprises the following components: at least one sensor, at least one actuator and at least one computing unit, wherein the components are arranged in the housing and thus combined in one device and the device is functional without a connection to a central gateway or network device and the device is embodied for installation in a flush-mounting box or as a replacement device for a wall thermostat and has a power supply unit or voltage converter.