Zig Bee Communication of Sensor Data Between Raspberry Pi and Ubuntu System

Raspberry pi (R-pi) is a low cost system on chip ( SOC ) com-puter which can be operated with various operating systems like Raspbian for ubuntu, Pidora for fedora. This SOC has plenty of GPIO hardware ports through which programmer can access sensors connected to external devices. In traditional computer systems, we can access external hardware through USB/serial ports, where lot of programming and hardware circuits are nec-essary. But Raspberry Pi has built in GPIO pins to which exter-nal sensors are connected and these pins are addressable from python program, using specific library routines. This facility en-ables the designer to directly access the sensor connected to the hardware ports. Sensors connected to the Raspberry Pi SOC communicates with ubuntu base station using wireless Zigbee technology. In this experiment, live sensor data is transmitted over zigbee chan-nel and received using zigbee receiver and graph is displayed at Ubuntu laptop. Experiments are conducted and graphs are drawn for temperature, humidity, light and motion detection sen-sors.