上车按键后开始计价。有实时时钟、单价、距离和总价钱显示。可以通过键盘修改单价（元/公里）和时间。有清除键用以清楚上次费用。利用LCD分别显示时间、单价、路程和费...

12864液晶在出厂时其对比度已经调好，所以用户在使用的时候第三管脚可不用接任何东西，本实验板上为了兼容多家12864液晶所以加了液晶对比度调节电位器，若用户使用我们配套的12864液晶可不用管它，液晶的第三管脚悬空就可以。有些液晶功耗比较大，用户在使用的时候可将液晶的第19、20引脚的背光不接，这样字体会很清楚-12864 LCD contrast, when the factory has a good tune, so when users can not access the third pin anything, this experiment in order to compatible with more than 12,864 on-board LCD so the addition of LCD contrast adjustment potentiometer, if users supporting our 12864 can not regardless of LCD, LCD" s third pin can be left vacant. Some relatively large power consumption of LCD, users can be used when the first 19,20 LCD backlight will not receive the pin, so that fonts will be very clear

本文详细介绍了4×4矩阵式键盘识别技术，内含详细的电路图和C51源代码。-This paper describes a 4 × 4 matrix keyboard recognition technology, and contains detailed schematics and source code C51.

一篇关于步进电机的细分，驱动，加速，减速的文章。-An article on the breakdown of stepper motors, drives, speed up, slow down the article.

电力系统脉宽调制波形，经调试改进，绝对正确-power_pwm

usb固件程序LCD1602_GPIF_Firmwire-usb firmware LCD1602_GPIF_Firmwire

c8051f单片机外接ht1380，关于时间的读取，设置-c8051f MCU external ht1380, on the time to read, set

三菱PLC上位机程序详细例子，很适合基础入门-Fix-PLC Commuation to Computer

89c51的isp下载程序C语言版源代码。可无编程器在线编程。-89c51 isp download the C language version of the source code. Programming can be no on-line programming.

通过了硬件调试，用89c51控制18b20采集温度。而且还是简单易懂的c语言-Hardware through the debugging, use 18b20 Acquisition 89c51 temperature control. It is also easy-to-understand language c

用于51单片机的12864液晶显示程序（汇编）-12864 for 51 single-chip liquid crystal display of the program (compilation)