led -位操作

自己试用过，适合初学，比较基础，但不是原创,请见谅，希望大家共同进步(I have tried it, suitable for beginners, comparatively basic, but not original, please forgive me, I hope you all make progress together.)

采用NXP出品的高集成度PN532读写芯片， 符合ISO/IEC18092（NFC）标准，兼容ISO14443（Type A、Type B）标准。采用USB接口与电脑进行通讯及供电，不但可以读取符合Mifare标准的Classics（M1、M4、MUL）和DESFire卡，还支持FeliCa卡等符合NFC规范的非接触式IC卡。(IC card and entrance guard card reading and writing)

说明：  ad8232驱动程序代码以及ad8232的 简单应用(Ad8232 driver and simple application)

基于STM32多功能虚拟信号分析仪 示波器频谱仪(Based on STM32 Multifunction virtual signal analyzer oscilloscope spectrum analyzer)

$regfile = M8DEF.dat internal crystal 8000000 Config Lcdpin = Pin , Db4 = Portc.1 , Db5 = Portc.2 , Db6 = Portc.3 , Db7 = _ Portc.4 , E = Portd.2 , Rs = Portd.3 Config Lcd = 16 * 2 Config Timer1 = Counter , Edge = Rising Ddrb.1 = 0 : Portb.1 = 1 PULL UP RESISTOR ACTIVATED Config Timer0 = Timer , Prescale = 1024 Enable Counter1 Enable Interrupts Enable Timer0 Enable Timer1 On Ovf1 Pulsecount On Ovf0 Ovf0occures Dim A As Long , I As Long , B As Byte B = 0 Cls Start Timer0 Do Loop End end program Ovf0occures: Incr I If I > 30 Then Stop Timer0 Cls : Home A = B * 65536 A = A + Counter1 Lcd FREQ IS : A HZ B = 0 I = 0 : Counter1 = 0 Start Timer0 End If Return Pulsecount: Incr B Counter1 = 0 Return

能够进化模拟电路，同时更改参数设置可以进化自己想要的东西(To evolve analog circuits, parameter settings can also change the evolution of what she wants)

使用MSP430F5438单片机和HC-SR04超声波模块，1602显示屏块实现的超声波测距，精确到厘米。(The use of MSP430F5438 microcontroller and HC-SR04 ultrasonic module, ultrasonic ranging 1602 display block realization, accurate to centimeters. )

说明：  用C语言编写的51单片机智能小车程序；该小车能自行循迹，超声波避障和测距，液晶显示信息以及红外遥控等功能；(The 51 single-chip intelligent car program written in C language can track itself, avoid obstacles and measure distance by ultrasound, display information by LCD and infrared remote control.)

Control of Asymmetrical Multilevel Inverter Using Artificial Neural Network

nrf2401M16无线模块开发案例，很实用哦(nrf2401 wireless module development case)