At present, agencies, schools and enterprises and institutions meeting, often have to vote for certain, however, vote on more domestic use of the voting machine cable, Cable voting machine has many shortcomings: If the meeting to be held in different locations, we need to vote on the same system, the staff will be meeting in different lines of re-arrangement of red tape, so you can easily go wrong, not only to the staff brought a great deal of inconvenience, but also is a waste of time.
With the development of wireless local area network, wireless technology, the advantages of its own constantly reflected in the application, when the wireless voting technology are becoming increasingly mature and perfect them. Even though the venue changes, staff also do not need to install wiring, so long as adequate to carry the wireless device can vote, but also do not have to change the venue of the decoration style of the original, saving manpower and time saving.
This article is based on MSP430F123 single-chip and wireless transceiver chip nRF905 at the core, the development of a wireless voting system, MP430F123 is FLASH-based microcontroller, with the performance of ultra-low power, suitable for use in a variety of occasions, very low power consumption with certain technical characteristics. NRF905 used as a transceiver module, developed a voting machine for a wireless communication protocol and network analysis of the whole process of communication to send and receive data, the last in the basis of theoretical analysis, are given specific hardware design and software design. Confirmed by practice, the system has low power consumption, functionality, and reliability and user-friendly features, has a higher value of the promotion and application.
Key words：wireless voting; MSP430F123 single-chip; nRF905; low power
