摘要
主要提出基于89C2051单片机的无线遥控小汽车整体设计方案。系统重点在于提出应用步进电机来控制转向和采用PWM技术调节的直流电机控制速度,以提高玩具车转向精确度与灵活性。在遥控方面,采用无线收发模块nRF401,它采用抗干扰能力强的FSK调制解调技术和频率稳定性好的PLL频率合成技术,并可直接与单片机串口通讯。软件设计方面,给出了主程序流程框图。
This article has first analyzed the most toy cars＇ character and insufficiency in the present market, then proposes overall design plan of MCU＇s wireless remote control compact car based on the 89C2051. This system lies in the application of step motor to control direction and of PWM technology to control DC motor＇s speed, enhancing change the precision and the flexibility of toy car. In the remote control aspect, it uses wireless receiving and dispatching module-nRF401, which adopts strong anti-jamming capability of FSK demodulation technology and frequency stability good PLL frequency synthesis technology and can be directly microcontroller serial communication. In software design aspect, flow diagram of main program is given.
出处
《电脑开发与应用》
2012年第12期73-75,78,共4页
Computer Development & Applications
