A design of a wireless environmental index sensor is introduced.MSP430 microcontroller is used as control center

COZIR-W sensor acquire environmental index of site and send it to the microcontroller in the form of digital signal.The data is transmitted out by the X-BEE wireless module after the data is packed.The sensor can act as the node of wireless sensor networks

and communicates with the control center via wireless gateways.A detail description of the design of the main hardware modules and the algorithm for optimizing the path of data acquisition is performed

and a method for realization of low power consumption of the sensor and improvement of the transmission stability is proposed.The results obtained by experiment and test show that it is characterized by low power consumption

good stability

high communication efficiency

and quite suitable for various environmental monitoring.