With the improvement of people’s living standard, wireless has been playing a more and more important role in people’s life. Oriented by this trend, a lot of new application areas of wireless have been explored, such as remote keyless entry, remote meter reading, home automation, home security & alarm, etc. But lots of wireless module we used is not satisfactory, such as the ones connected with communication distance, power emission and equipment power. As a result, application of the new chips, exploration of lower power and longer emission distance of the wireless products is inevitable.
This paper introduces a design method of a wireless transceiver based on the Si4432 system. This design mainly consists of a control module whose core is the F330 microcontroller and a transceiver module whose core is the Si4432. Through the design of the program and external circuit of the SPI and UART communication of the control module, it can be completed on the function of packing the data of outside and sending the package to the transceiver module or receiving data packets from transceiver module and sending them to the external circuit; Through the design of the sending and receiving circuits and the SPI communication circuit of the transceiver module, it can be completed on the function that sending the packages from the control module or sending the data which comes from the air to the control module. And finally writing the PC software which can achieve the function of setting the module’s parameters. After testing, the system can send and receive data normally in the Range of 300 meters.
Keywords: wireless module, F330 micro-controller, UART Communication