19.fengmingqi

基于51单片机的数字电子秤，有文档的详细说明(A digital electronic scale based on 51 single chip microcomputer with detailed description of the document)

用于MMC桥臂计算，特别适用于较为复杂的MMC平衡子模块电容电压的计算(MMC is used to calculate the arm, especially for more complex calculations MMC submodule capacitor voltage balance)

ad7812采集程序源码10位的，运用c语言言开发的，环境是KEIL 51。 可直接使用。 (The ad7812 acquisition program source 10, developed using c language words, the environment is the KEIL 51. Can be used directly.)

说明：  430单片机中的led显示模块,对于初学者来说,这个程序简单易懂,是学习430的好帮手(430 in single-chip led display module, for beginners, this easy-to-read program is a good helper to learn 430)

NTC热敏电阻计算器（B值、R25、指定温度、指定阻值均可计算，给定四个参数即可计算第五个参数）(NTC thermistors Calculator (B value, R25, specified temperature, the resistance can be specified calculation, four parameters can be calculated given the fifth parameter))

可以产生幅度、频率可调的方波，频率50hz到1M(Can produce the amplitude, frequency adjustable Fang Bo, frequency of 50Hz to 1M)

基于单片机MSP430的 步进电机控制 测距程序 (MSP430 microcontroller-based stepper motor control ranging program)

128KHzID卡读卡模块程序，带模块原理图，曼切斯特解码(128KHzID card reader module program with block diagram, Manchester decoding)

电动工具无刷电机控制解决方案，基于单片机控制的无刷电机驱动，可立即启停，高性能，低耗能，锂电池充电。(Electric tools brushless motor control solutions, brushless motor driver based on single chip microcomputer control, can immediately stop, high performance, low energy, lithium battery.)

设计的电机驱动控制系统的主要功能有①控制电机的正转、反转；②为电机设计控制速度，有5m/s、10m/s、15m/s三个等级；③给电机设定转动的位移，让电机按照设定的位移移动；④1602液晶上显示电机的位移和速度；⑤利用4*4键盘数字输入控制电机的速度、按键C和D控制正反转、按键B控制三个档位的速度。(Using SCM software and hardware systems to achieve precision stage displacement, velocity through three or four phase stepper motors (motors meet the acceleration and deceleration characteristics), control the direction, location. Completion of the control circuit board hardware, including CPU, power amplifier, buttons, LED display. Software can be implemented in C.)