按键扫描驱动程序。51单片机。c语言编程。

MX31 ADS原理图， MX31评估的帮手-MX31 ADS schematic, MX31 assessment Helper

把程序写进单片机从而控制电梯的上下，开关门，报警等功能！这个程序简单，使用性强！-procedures written into the MCU control of the elevator up and opening the doors, alarm functions! This simple procedure, the use of strong!

单片机控制光驱程序，通过按键实现光驱的播放，暂停，出仓，快进，后退等功能-SCM control procedures drive, drive through the realization of the key players, suspended from the warehouses, fast forward, rewind functions

c51控制1602液晶显示，适合初学者，硬件测试可用，附含1602液晶说明-C51 control of liquid crystal display 1602 is suitable for beginners, hardware testing is available, with 1602 LCD attached note

一个用单片机控制饲服电机的程序，采用ＯＭＲＯＮ光纤感应器实现的剪纸机，已通过调试-By feeding a single-chip microcomputer to control the electrical service procedures, the use of fiber-optic sensor OMRON realize the paper-cutting machines, has passed through debugging

用89c2051模拟产生dtmf信号，广泛用于防盗报警、电话数据传输等；节省发号及收号电路，成本低。-with 89c2051 simulation of DTMF signals, widely used in anti-theft alarm, telephone data transmission; Savings and resumption of the circuit, and low cost.

按键控制步进电机正反转，此为电子显微镜载物台三维控制设计-Stepper motor control key positive

l298调 速 程 序 常规的接法是这样的，EnableA接PWM信号，Input1输入正反控制信号， Input2是Input1经过反相以后的信号。L298的电平是与TTL电路相兼容的，一般是超过2.5V就为高电平。假如Input1为高电平时电机正转，那么低电平时就是反转，PWM信号控制电机的转速。 _________________ -l298 procedures conventional speed connection that is the case, EnableA then PWM signal, Input1 input positive and negative control signals, Input2 is Input1 through after RP signal. L298 level is compatible with TTL circuits, and is generally more than 2.5V for the high. If Input1 is high when the motor is transferred, then that is when low-level inversion, PWM signal to control motor speed. _________________

触摸屏幕资料！还有电路图！可以借鉴的！是初学者的好资料-touch screen information! There circuit! We can draw! Beginners is a good information!

FlashFlex51单片机