minipad_0

STM32F103C8T6主控，SPI接口驱动RC522，使用USB转成虚拟串口直读A卡UID。(STM32F103C8T6 main control, SPI interface drive RC522, use USB to convert virtual serial port to A card UID.)

说明：  STM32驱动TLV5616实现da转换 实测无误(Realization of DA conversion by STM32 driver TLV5616)

一组频谱分析结果，样本容量1601，即1600线。(A set of spectral analysis results, sample size 1601, 1600 line)

RN8209计量芯片通讯读写程序，已经使用于单相电量表中(RN8209)

温度传感器18b20用C51控制，可以实现功能。操作简单，程序易懂适合入门(Temperature sensor 18b20 with C51 control function can be achieved. Simple, easy to understand procedures for entry)

pwm方波控制仿真 通过仿真输出方波pwm 并输出正弦波 谢谢(PWM square wave control simulation by simulation output square wave and sine wave output for PWM)

说明：  通过定时器1控制八个LED实现不同样式的循环点亮，首先13，然后24，35，46，57，68之后是四个灯1357，2468，之后全部点亮再全部熄灭。(Through timer 1 control eight LEDs to achieve different styles of cycle lighting, first 13, then 24, 35, 46, 57, 68 followed by four lights 1357, 2468, and then all lit and then all off.)

交流电子负载，采用背靠背双PWM形式，实现能量的馈网，负载测采用三个单相逆变器来模拟。(PEL use PWM Simulator，can realise the power feed network)

说明：  红外遥控器实现电机开关 开或关蜂鸣器都要响一下 电机可定时 类似于闹钟 只不过是时间到电机就停或开 定时开始或取消也是红外遥控器按键实现 红外遥控器有按键能实现增加和减少电机转速 电机接的是风扇(Infrared remote control to achieve motor switch on or off buzzer to ring Motor timing is similar to the alarm clock, but it is only time to the motor stop or start the timing or cancel the infrared remote control button Infrared remote control has keys to increase and reduce the motor speed motor connected to the fan)

官方的卡尔曼滤波算法，二维,角度融合算法(The official Kalman filter, two-dimensional)