I远离提示电路摘 要在二十一世纪，科技不断发展，并且在科技发展的同时，给我们生活带来的是无穷的便利。许多以防丢为目的的电子产品也在不断更新换代，本次课题所研究的远离提示电路，其功能就是防丢。它主要由两部分组成，一个是主机，主要进行发射数据，由需要保护对象携带；另一个是从机，主要进行数据的接收，由保护主体携带。采用 AT89C52 单片机为电路控制模块，NRF24L01 芯片为无线发射和接收模块，主要流程就是先由发射端发射信号，然后接收端接收到发送端的信号后，这时接收端启用自动应答功能对发射端传送应答信号，这样就完成了一次完整的通信，当收发两端之间的距离超过预定范围时，发送端和接收端此时便不可以正常进行通信，则收发两端的报警电路工作，达到防丢的功能。关键词：防丢;AT89C52;NRF24L01IIStay away from the prompt circuitABSTRACT In the 21st century, science and technology continue to develop, and at the same time, it brings us infinite convenience in life.Many electronic products for the purpose of preventing loss are constantly updated,The research of this project is far away from the prompt circuit, and its function is to prevent loss.It is mainly composed of two parts, one is the host, which mainly transmits data and is carried by the object to be protected; the other is the slave, which mainly receives data and is carried by the protection subject.AT89C52 is used as the circuit control module, nRF24L01 is used as the wireless transmitting and receiving module,The main process is to transmit the signal from the transmitting end first, and then the receiving end receives the signal from the transmitting end. At this time, the receiving end enables the automatic response function to transmit the response signal to the transmitting end, thus completing a complete communication,When the distance between the two ends of the transceiver exceeds the predetermined range, the sender and the receiver can not communic...
