02-filters_and_filtering

基于STM32F1的RFID M1卡的读写程序，RFID芯片是NXP的RC522(Based on STM32F1 RFID M1 card reader program, RFID chip is NXP s RC522)

详细介绍了CAN总线OAL层驱动编写方法，对于初学者很有价值！(details of the CAN Bus Drivers qualify layer preparation methods for beginners great value!)

使用sonix单片机开发的HT16K33驱动程序，只用到显示部分。(HT16K33 Driver)

南京傅里叶公司HDSP2812相关的亮灯程序，包含完整的头文件和源文件(Nanjing Fourier lighting company HDSP2812 related procedures, including the full header and source files)

利用是stm32f103rct6单片机实现舵机的PID控制(Using stm32f103rct6 microcontroller to realize PID control of steering gear)

ad7991测试程序，需要自己填写控制字(ad7991 testing procedures need to fill their own control word)

基本51单片机制作的电视机遥控器，24M的晶振，并且已经通过实验，可以成功遥控。工作原理： 由另一遥控器发射出来的红外进行解码，并且经单片机识别后，发射电视遥控器相应的功能键代码。(51 Microcontroller basic TV remote, 24M crystal, and has been through experiments, can successfully remote control. How it works: emitted by another infrared remote control decoding and identification by the MCU after the launch of the corresponding function key remote control code.)

STC15单片机驱动LCD12864，并且是使用串口通信协议，节约IO口，亲测可用(STC15 microcontroller driven LCD12864, and you are using serial communication protocol, save IO ports, pro-test available)

瑞萨单片机RL78 陀螺仪mpu6050 dmp读取 四轴串级pid + ANO_TC匿名科创地面站v4 显示姿态pid调试(Renesas MCU RL78 DMP read four axis gyroscope mpu6050 cascade PID+ ANO_TC anonymous Kechuang ground station V4 display posture PID debugging)

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.)