timer4_led_test

利用easyx写的矩阵键盘仿真，希望可以给爱好者提供参考。(Use easyx wrote matrix keyboard emulation, hoping to provide a reference for enthusiasts.)

C51 12位 双极性 ADC MAX1272 驱动程序 STC单片机 滤波算法(A C51 12 bit bipolar ADC MAX1272 driver STC microcontroller filtering algorithm)

跑马灯是一种电脑编程工具，利用涂鸦等效果显示文字。电脑中的跑马灯，跑马灯在编程中，通常指有时需要用一矩形条显示少量用户特别关心的信息，这条信息串首尾相连，向一个方向循环滚动。(The marquee is a computer programming tool that uses text such as graffiti to display text. In the computer, the marquee and the marquee are usually programmed to display a small amount of information that the user is particularly concerned with. This string of information is connected end to end and scrolls in one direction.)

the file includes several examples of the code composer studio source for verification

RC522 IIC驱动程序，可实现读卡和写卡功能，复旦卡或M1卡都可以，本人也试过读公交卡，可以读出序列号和卡类型。(RC522 IIC driver, can read card and write card function, Fudan card or M1 card can, I also tried to read the bus card, you can read the serial number and card type.)

C8051f340 8位pwm波形输出 占空比可调节(C8051f340 8bit output )

STM32_F107显示U盘中图片,神舟IV号原光盘资料，MDK编译测试。(STM32_F107 Display U disk images, Shenzhou IV, the original CD-ROM, MDK compiler testing.)

基于卡尔曼滤波的MPU6050例程，效果很好。(Based on the Calman filter MPU6050 routine, the effect is very good.)

基于STM32F103单片机的LED测试源码(LED Test Source Based on STM32F103 MCU)

说明：  msp430的中文手册，原理图，示例程序，来自合肥工业大学，请勿用于商业用途(Chinese manual, schematic diagram, sample program of msp430, from Hefei University of Technology, please do not use for commercial purposes)