基于单片机利用红外对射管进行的小车测速装置，欢迎共享-Microcontroller-based infrared beam tube of the car speed device, please share

本设计以AT89C52单片机为核心，以4*4矩阵键盘为输入，光电对射式传感器为测速原件达到了对步进电机的测速与调速目的，完成了本设计的基本要求。-The design for the AT89C52 microcontroller as the core, 4* 4 matrix keyboard input, photoelectric beam sensor for velocimetry original reach of the stepper motor speed measurem

使用AT89c51设计的一款智能点滴，使用增量式PID算法进行闭环控制，通过对射式红外传感器检测液滴的滴速，使用1602显示液滴滴速以及病人需求的液滴-Using AT89c51 design a smart bit by bit, using the incremental PID algorithm for closed-loop control, through-beam infrared sensor detects droplets drip rate, using the 1602

通过红外对射传感器计数，然后LCD显示滴速，课用于自动计数，该程序用于医院点滴滴速测量-Infrared beam sensor count, then the LCD display the drip rate class for automatic counting, the program for hospital drip drip rate measurement