实验22：LCD1602液晶

使用定时器TIM3输出四路的SPWM波，其中一二路、三四路波形一致，一二路与三四路波形相差180°(Timer TIM3 is used to output four SPWM waveforms, of which one, two, three and four waveforms are identical, and one, two and three and four waveforms are 180 degrees different.)

利用单片机的定时器定时，令十字路口的红绿灯交替点亮和熄灭，实现主支路路口的交通信号灯控制（尽可能保持主线的畅通，即在通常情况下，保持主线的放行，只有在支线到达时，才放行支线），同时采用LED数码管或LCD显示倒计时时间。(The use of single-chip timer timing, make the turn at the crossroads of the traffic lights lit and extinguished achieve the main traffic lights at the junction of the slip control (as much as possible to maintain the smooth flow of the main line, that is, in normal circumstances, to maintain the main line of the release, only at Extension arrive only when the release of the Spur Line), while the use of LED digital tube or LCD display countdown time.)

crazypony飞控源码，keil版适合飞控初学者开发实践，简单上手快。(Crazypony flight control source, keil development practices for flight control beginners, the load on the simple.)

说明：  图像处理程序,单片机嵌入式,FFT算法(Image processing procedures, single-chip embedded, FFT algorithm)

说明：  轮流点亮P1口所接LED并循环显示，间隔0.5s(Turn on the LED connected to P1 port in turn and display circularly, with an interval of 0.5s)

以上是二维傅里叶变换程序源代码 还有傅里叶反变换(These are the two-dimensional Fourier Transform source code for inverse Fourier transform)

单片机操作EEPROM 240X的程序。 非原创，转载。(EEPROM 240X MCU operating procedures. Non-original and reproduced.)

以定时的方式接收下位机传送的多帧数据，接收准确，实时性很强(In time to receive the next crew of the multi-frame data transmission, receive accurate, real-time strong)

网蜂科技开发板CC2530F256实现中断定时唤醒(Realization of Watchdog Timing by Network Bee Technology Development Board CC2530F256)

利用红外遥控器来遥控LED灯的亮灭，8个按键可以控制8个LED灯，实现智能遥控灯(The use of infrared remote control to remote control the LED lights on or off, 8 buttons can control 8 LED lights, to achieve intelligent remote control lights)