Arduino Wireless home monitor

An Arduino based home monitor collects sensor data throughout my home and posts the data to a custom web page on the internet.     The entire system is Arduino microcontroller based, and uses both Arduino Unio and Fio boards.     The sensor data is transmitted from one Arduino to another wirelessly using radio frequency (RF) modules called XBees.  

Wireless transmission of the data was chosen because it was easy enough to get power to the remote sensor locations where an Arduino collected and processed the sensor data.   This avoided the need to run wires throughout the house from the remote sensor locations to the base station that collected the data and transmitted it onto the custom web page.   See my detailed section on XBee for use, configuration, and troubleshooting information.  

An Arduino Uno with an Ethernet Shield was used to transmit the sensor data received by the base station to the custom internet web page.