This project a small prototype to wireless sensor network in which the sensors are movable, so that it can collect data from wider range than the traditional one and it can enlarge the range as possible as it can. The robots are provided with a set of sensors to move and to collect data (temperature, humidity, ultrasonic), the microcontroller used is AtmegaAVR –interfaced to Arduinoboard–, wireless module that used is XBee and it used as pure wireless module. In order to arrange transfer process we build our own protocol that controls the data movement between the nodes. We use power isolation methods to provide safe power supply to microcontroller and sensors, and to isolate them from motors power. Using .Net we built a server that connected to MySQL database so we have ability to store data that comes from nodes, also An android application can use this database and can control the nodes as the.Net server do.