RFID module for environmental sensing

Radio Frequency identification (RFID) technology have many application rather than tracking and identification of objects, the automatic transmission of environmental sensing parameters in wireless sensor networks is most attractive applications. Some RFID tags have transmit sensor-like temperature or pressure measurement, information are already in the market and embedded in the RFID chip, are expensive and operated limited range with large power. In this paper, propose the RFID module which used the active RFID tag for the sensing parameters transmission over a long range distance and support the sensors like temperature, light and humidity measurement, ultralow power microcontroller. These are helpful to make a module for data transmission over a large distance with cost effective and low power consumption.