freeradius-1.0.5.tar

超声波测量距离，显示在液晶1602上，经测试，测量距离为3cm到6m，反应很灵敏。(Ultrasonic distance measurement displayed on the LCD 1602, and tested to measure the distance of 3cm to 6m, reaction is very sensitive.)

STM32 4路AD+5110显示 ( )

ZH03B激光粉尘传感器（PM2.5传感器）-炜盛科技(ZH03B Laser Dust Sensor (PM2.5 Sensor) - Weisheng Technology)

实现步进电机的正反转，以及速度控制。加上步进电机的起停(Positive and reverse of stepping motor)

说明：  实现正常时钟功能，带时间日期，三组闹钟，键盘显示(流程图，配合程序使用)(Realize normal clock function, with time and date, three sets of alarm clocks, keyboard display)

NFC MIFARE FELICA S50 S70 P2P ID卡 动物标签 18092 14443 技术详细介绍 (1)——概念、分类 (2)——国际标准 (3)——能量、调制 (4)——数据编码 (5)——防冲突 (6)——通讯协议概述 (7)——ID卡 (8)——动物标签 (9)——动物标签HDX (10)——识别号的格式变化 (11)——Mifare系列卡的共性 (12)——三次相互认证 (13)——Mifare S50与Mifare S70 (14)——Mifare S50与S70的存取控制 (15)——Mifare1的安全性及7字节序列号M1卡 (16)——Mifare?UltraLight (17)——射频卡中数据的存储形式 (18)——Mifare Desfire (19)——Desfire的3次握手认证和段密码生成 (20)——RC系列射频接口芯片 (21)——RC系列射频芯片的天线设计 (22)——RC系列射频芯片的寄存器操作 (23)——ISO15693的载波、调制与编码 (24)——ISO15693的防冲突与传输协议 (25)——Felica简介 (26)——Felica的文件系统 (27)——CPU卡概述 (28)——基于MF1射频卡的酒店门锁设计 (29)——射频接口芯片TRF7960 (30)——PN512的寄存器设置(NFC MIFARE FELICA S50 S70 P2P ID card animal tag 1809214443 technical details (1)- Concept, classification (2)- International Standard (3)- the energy modulation (4)- data encoding (5)- Anti-collision (6)- Communication Protocol Overview (7)- ID cards (8)- Animal tags (9)- Animal label HDX (10)- Changes format identification number (11)- Mifare series cards common (12)- three mutual authentication (13)- Mifare S50 and Mifare S70 (14)- Mifare S50 and S70 of the access control (15)- Mifare1 safety and 7-byte sequence number M1 card (16)- Mifare UltraLight (17)-? to store data in the form of RF card (18)- Mifare Desfire (19)- Desfire three-way handshake authentication and password generation segment (20)- RC Series RF Interface Chip (21)- RC Series RF chip antenna design (22)- RC Series RF chip register operations (23)- ISO15693 carrier modulation and coding (24)- ISO15693 anti-collision and transmission protocol (25)- Felica Introduction (26)- Felica file system (27)- CPU card Overview ()

主要介绍了AD594AD595调理热电偶信号的应用，以及在应用当中的注意事项。(Introduces AD594AD595 thermocouple signal conditioning applications, as well as among the considerations in the application.)

stm32f103rct6控制两路编码电机pid调速(Stm32f103rct6 control of two way coded motor PID speed regulation)

汽车横、轨道衡,电子汽车衡技术协议说明文档资料(Automotive Wang, railroad track scale, electronic truck scale information technology agreement documentation)

各种PID算法 包括位置型PID 增量型PID 积分分离PID,抗积分饱和PID等(Various PID algorithms include location PID incremental PID integral PID separation PID, anti-integral saturation PID and so on)