Smart thermostat
Smart thermostats are thermostats that can be used with home automation and are responsible for controlling a home's heating and/or air conditioning. They perform similar functions as a Programmable thermostat as they allow the user to control the temperature of their home throughout the day using a schedule, but also contain additional features, such as sensors and WiFi connectivity, that improve upon the issues with programmable thermostats,
Dexter Industries
Dexter Industries released the WiFi sensor called the dWIFI in November 2011. The dWifi release was accompanied by a week-long instructional blogging campaign aimed at walking novices through the process. The dWifi enables the NXT to transmit and receive information wirelessly between a computer and itself. The sensor operates with standard 802.11 b/g/n access and can be configured to run on the vast majority of home networks. The Dexter Industries dWIFIs sensor connects to the NXT via the high speed communications Port 4 and is powered by an external 9V battery. The sensor comes with security options and is able to connect with WPA2-PSK, WPA, and WEP security networks. Users of the dWifi can "tweet" information from the Mindstorms NXT to Twitter. In February 2012, a dWiFi user released instructions on how to expand the range of the dWifi by using a High Gain Ariel.