Differential_relay_working_pscad

利用1602液晶屏显示超声波测距，并有连接电路图。(1602 LCD screen display use ultrasonic ranging, and connection circuit.)

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)

说明：  红外接收遥控器信号解码数码管显示 , Iccavr 编程，亲测好用。(Ir decode example, Iccavr program, it works)

这是基于stm8s003芯片的 iic slave 模块程序.简单易懂，可以稳定地跑100k的标准iic。适合初学者学习。编译环境是stvd，编辑是sourceinsight。(This is iic slave module program based stm8s003 chips. Easy to understand, can stably run the standard iic 100k. Suitable for beginners to learn. Compiler environment is stvd, editing is sourceinsight.)

IC卡读写器软件DEMO，支持ISO14443A、ISO14443B、ISO15693协议， ISO14443A：NTAG203、NTAG210、NTAG212、NTAG213、NTAG215、NTAG216, Ultralight、Ultralight C,MIFARE Classic 1K/4K, Mifare DESFire, MIFARE ProX, FM11RF08、FM11RF32, FM1208、FM1216 ,符合ISO14443A标准的CPU卡. ISO14443B：AT88RF020, SR176、SRI512、SRT512、SRI2K、SRI4K, SGIDC(只读UID),符合ISO14443B标准的CPU卡. ISO15693： I.CODE SLI, Tag-it HI-I Plus, 符合ISO15693标准的卡.(IC Card Reader Writer DEMO，support ISO14443A、ISO14443B、ISO15693 ， ISO14443A：NTAG203、NTAG210、NTAG212、NTAG213、NTAG215、NTAG216, Ultralight、Ultralight C,MIFARE Classic 1K/4K, Mifare DESFire, MIFARE ProX, FM11RF08、FM11RF32, FM1208、FM1216 . ISO14443B：AT88RF020, SR176、SRI512、SRT512、SRI2K、SRI4K, SGIDC. ISO15693： I.CODE SLI, Tag-it HI-I Plus.)

说明：  对AD9959英文数据手册进行了详尽的翻译，并标注出了一些很重要的功能、结构，能加快初学者入门速度，提高编程效率。(This paper makes a detailed translation of AD9959 English data book, and marks out some very important functions and structures, which can speed up the beginners' entry speed and improve the programming efficiency.)

四旋翼无人机飞控代码，采用MPU6050姿态传感器，串级PID控制，实现无人航空新篇章(Quadrotor UAV flight control code, using MPU6050 attitude sensor, cascade PID control, unmanned aerial chapter)

有关压电传感器的相关介绍，介绍了一款特殊的压电传感器及其应用。(Related to the introduction of piezoelectric sensors, introduces a special piezoelectric sensors and their applications.)

qt下stm32智能家居项目，可以实现开关灯，播放音视频等功能(Arm development platform smart home.)

用51单片机IO口实现SMBUS总线的源程序(With 51 single-chip IO Bus I realize SMbus source)