ZigBee is an open standard for wireless connections between devices at short distances. It is used for the transmission of sensor data and process monitoring & control. Examples are the health of a patient or the monitoring of indoor safety with the help of sensors. A ZigBee connection is very robust, but the bandwidth and the transmission speed are limited compared to Bluetooth and Wi-Fi. Zigbee is designed for home automation applications. For example to remotely control dimmers and on/off switches of the lighting in a home or building with minimal means.