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采用FSK调制解调方式和以单片机为控制核心的无线打印机共享器可以使处于同一室内的多台计算机共享一台打印机，且省去接线的麻烦，提高打印机的使用效率。
FSK modulation and demodulation using the microcontroller as the control center of the wireless printer sharing device can be in the same room multiple computers to share a printer, and eliminating the trouble of wiring, improve printer efficiency.