The Design of the Wireless Smart Subpoena System Based on MSP430

In order to solve the problem of shortage of workers in large hospitals, this study design a kind of short distance wireless communication system based on brain-computer-interface (BCI) technology, it chooses the ultra-low power MCU MSP430F5438 and nRF24L01 as the core, and it includes the design of Lab view platform, brain electrical simulator, nRF24L01 wireless transceiver system and voice prompts. Through the real-time extraction of steady-state visual evoked potentials by Lab view, generates a control command, and use the wireless transmission control bank-end voice prompt. In real life, it is able to change some different needs of hemiplegia patients into speech signal to remind nursing staff, so it will have a good prospect.