ADC-and-LCD

步进电机是将电脉冲信号转变为角位移或线位移的开环控制电机，是现代数字程序控制系统中的主要执行元件，应用极为广泛。。在非超载的情况下，电机的转速、停止的位置只取决于脉冲信号的频率和脉冲数，而不受负载变化的影响，当步进驱动器接收到一个脉冲信号，它就驱动步进电机按设定的方向转动一个固定的角度，称为“步距角”，它的旋转是以固定的角度一步一步运行的。可以通过控制脉冲个数来控制角位移量，从而达到准确定位的目的；同时可以通过控制脉冲频率来控制电机转动的速度和加速度，从而达到调速的目的。(Stepper motor is an open loop control motor which transforms electrical pulse signal into angular displacement or linear displacement. It is the main executive element in modern digital control system, and is widely applied. In the case of non overloaded, the motor speed and stop position depends only on the pulse frequency and pulse number, regardless of load changes, when the stepper driver receives a pulse signal, it drives stepper motor to set the direction of rotation of a fixed angle, called "step", it is the rotation of the fixed point of the operation step by step. We can control the angular displacement by controlling the number of pulses, so as to achieve the goal of accurate positioning. At the same time, we can control the speed and acceleration of motor rotation by controlling the pulse frequency, so as to achieve the purpose of speed regulation.)

一个数字梯形，选择k条路线，每条路线从第一层的某个数开始，每次进入下一层到达左下或者右下的数字，直到最后一层为止。每条路线不能经过相同的路径，但是可以经过相同的数字节点。 输出一个整数，表示能得到的最大的k条路径经过的数字之和(A digital ladder, the K route, each route the first layer of a number, each time to enter the next layer to reach the left or right next to the number, until the final layer. Each route can not pass through the same path, but can pass through the same number of nodes. Output an integer representing the sum of the number of the largest K paths that can be obtained)

msp430开发环境的参考代码，开发环境为IR公司编译器(msp430 reference source development environment, development environment compiler for the company IR)

MP4原理图单片机产品\MP4680C-SCH3.pdf(Single-chip schematic MP4 products MP4 680C-SCH3.pdf)

Tinyos flood algorithms in NesC

这是基于开发板LPC1114的源码程序，是用C语言编写，用于实现LED灯的点亮以及开关的控制，同时它也是一个完整的模板，可以在此基础上添加其他程序用于开发板的学习，是一个完整的模板，可直接使用。(This is based on the development board LPC1114 source code program, is written in C language, used to realize the lighting of LED lights and switch control, at the same time, it is also a complete template, you can add other programs on this basis for the development board learning, is a complete template, can be used directly.)

说明：  模拟了无人机遇到障碍物自动避障的原理，并且加了大量的注释！(The principle of UAV avoiding obstacles automatically is simulated, and a lot of comments are added!)

MAX6675最全的资料，包含C51源程序，芯片介绍，技术文档等(MAX6675 the most complete information, including the C51 source code, chip introduction, technical documentation, etc.)

a microcontroller as the core of the vegetable greenhouse temperature control system.

用51单片机读取AD芯片7135，并显示在1602上，7135是一个高精度低速的AD芯片(With 51 MCU read AD chip 7135, and displayed in 1602, 7135 is a high-precision low-speed AD chip)