HX711_1Kg#include "HX711.h"float Weight = 0;void setup(){ Init_Hx711(); //初始化HX711模块连接的IO设置 Serial.begin(9600); Serial.print("Welcome to use!\n"); delay(3000); Get_Maopi(); //获取毛皮}void loop(){ Weight = Get_Weight(); //计算放在传感器上的重物重量 Serial.print(float(Weight/1000),3); //串口显示重量 Serial.print(" kg\n"); //显示单位 Serial.print("\n"); //显示单位 delay(1000); //延时1s}
上传时间: 2022-03-20
上传用户:
针对嵌入式产品程序更新问题,提出了一种基于IAP技术的STM32单片机在线固件升级方案,设计了STM32单片机最小系统硬件电路和USB转串口通信电路,并给出了Bootloader程序、APP程序、PC上机程序的实现流程.实验结果表明,该方案具有简单实用、稳定性高、维护成本低和设备使用效率高的特点,适用于嵌入式产品升级.For the problem of updating embedded products program,an online firmware upgrade scheme of STM32 single chip microcomputer based on IAP technology is proposed.This scheme not only elaborates the principle of IAP technology in detail but also provides the design of the minimum system hardware circuit of STM32 MCU,the design of USB for serial communication circuit,and the implementation flow of Bootloader program,APP program and PC program.The experiment results show that the scheme is simple,practical and highly stable.In addition,it can be used to actual embedded product upgrading,significantly reducing maintenance costs and improving the efficiency of equipment.
上传时间: 2022-03-25
上传用户:
产品型号:VK0192M 产品品牌:永嘉微电/VINKA 封装形式:LQFP44 产品年份:新年份 联 系 人:陈锐鸿 Q Q:361 888 5898 联系手机:188 2466 2436(信) 原厂直销,工程服务,技术支持,价格最具优势! VK0192M概述: VK0192M是一个24x8的LCD駆动器. 可软件程控使其适用于多样化的LCD应用线路,仅用到3至4条讯号线便可控制LCD駆动器,除此之外亦可介由指令使其进入省电模式 特色: ★ 工作电压: 2.4V~5.2V ★ 内建256KHz RC oscillator ★ 提供1/4 偏压1/8 COM 周期 ★ 省电模式 ★ 24x8 LCD駆动器 ★ 内建24x8 bit 显示存储器 ★ 3-wire serial interface ★ 软件程控 ★ 资料及指令模式 ★ 自动增加读写位址 ★ VLCD 脚位元可用来调整LCD输出电压 ★ 此篇产品叙述为功能简介,如需要完整产品PDF资料可以联系陈先生索取! LCD/LED液晶控制器及驱动器系列芯片简介如下: RAM映射LCD控制器和驱动器系列: VK1024B 2.4V~5.2V 6seg*4com 6*3 6*2 偏置电压1/2 1/3 S0P-16 VK1056B 2.4V~5.2V 14seg*4com 14*3 14*2 偏置电压1/2 1/3 SOP-24/SSOP-24 VK1072B 2.4V~5.2V 18seg*4com 18*3 18*2 偏置电压1/2 1/3 SOP-28 VK1072C 2.4V~5.2V 18seg*4com 18*3 18*2 偏置电压1/2 1/3 SOP-28 VK1088B 2.4V~5.2V 22seg*4com 22*3 偏置电压1/2 1/3 QFN-32L(4MM*4MM) VK0192 2.4V~5.2V 24seg*8com 偏置电压1/4 LQFP-44 VK0256 2.4V~5.2V 32seg*8com 偏置电压1/4 QFP-64 VK0256B 2.4V~5.2V 32seg*8com 偏置电压1/4 LQFP-64 VK0256C 2.4V~5.2V 32seg*8com 偏置电压1/4 LQFP-52 VK1621 2.4V~5.2V 32*4 32*3 32*2 偏置电压1/2 1/3 LQFP44/48/SSOP48/SKY28/DICE裸片 VK1622 2.7V~5.5V 32seg*8com 偏置电压1/4 LQFP44/48/52/64/QFP64/DICE裸片 VK1623 2.4V~5.2V 48seg*8com 偏置电压1/4 LQFP-100/QFP-100/DICE裸片 VK1625 2.4V~5.2V 64seg*8com 偏置电压1/4 LQFP-100/QFP-100/DICE VK1626 2.4V~5.2V 48seg*16com 偏置电压1/5 LQFP-100/QFP-100/DICE 高抗干扰LCD液晶控制器及驱动系列: VK2C21A 2.4~5.5V 20seg*4com 16*8 偏置电压1/3 1/4 I2C通讯界面 SOP-28 VK2C21B 2.4~5.5V 16seg*4com 12*8 偏置电压1/3 1/4 I2C通讯界面 SOP-24 VK2C21C 2.4~5.5V 12seg*4com 8*8 偏置电压1/3 1/4 I2C通讯界面 SOP-20 VK2C21D 2.4~5.5V 8seg*4com 4*8 偏置电压1/3 1/4 I2C通讯界面 SOP-16 VK2C22A 2.4~5.5V 44seg*4com 偏置电压1/2 1/3 I2C通讯界面 LQFP-52 VK2C22B 2.4~5.5V 40seg*4com 偏置电压1/2 1/3 I2C通讯界面 LQFP-48 VK2C23A 2.4~5.5V 56seg*4com 52*8 偏置电压1/3 1/4 I2C通讯界面 LQFP-64 VK2C23B 2.4~5.5V 36seg*8com 偏置电压1/31/4 I2C通讯界面 LQFP-48 VK2C24 2.4~5.5V 72seg*4com 68*8 60*16 偏置电压1/3 1/4 1/5 I2C通讯界面 LQFP-80 静态显示LCD液晶控制器及驱动系列: VKS118 2.4~5.2V 118seg*2com 偏置电压 -- 4线通讯界面 LQFP-128 VKS232 2.4~5.2V 116seg*2com 偏置电压1/1 1/2 4线通讯界面 LQFP-128 超低功耗LCD液晶控制器及驱动系列: VKL060 2.5~5.5V 15seg*4com 偏置电压1/2 1/3 I2C通讯界面 SSOP-24 VKL128 2.5~5.5V 32seg*4com 偏置电压1/2 1/3 I2C通讯界面 LQFP-44 VKL144A 2.5~5.5V 36seg*4com 偏置电压1/2 1/3 I2C通讯界面 TSSOP-48 VKL144B 2.5~5.5V 36seg*4com 偏置电压1/2 1/3 I2C通讯界面 QFN48L (6MM*6MM) _________________________________________________________________________________________________: 存储器映射的LED控制器及驱动器: VK1628 --- 通讯界面:STB/CLK/DIO 电源电压:5V(4.5~5.5V) 驱动点阵:70/52 共阴驱动:10段7位/13段4位 共阳驱动:7段10位 按键:10x2 封装SOP28 VK1629 --- 通讯界面:STB/CLK/DIN/DOUT 电源电压:5V(4.5~5.5V) 驱动点阵:128共阴驱动:16段8位 共阳驱动:8段16位 按键:8x4 封装QFP44 VK1629A --- 通讯界面:STB/CLK/DIO 电源电压:5V(4.5~5.5V) 驱动点阵:128共阴驱动:16段8位 共阳驱动:8段16位 按键:--- 封装SOP32 VK1629B --- 通讯界面:STB/CLK/DIO 电源电压:5V(4.5~5.5V) 驱动点阵:112 共阴驱动:14段8位 共阳驱动:8段14位 按键:8x2 封装SOP32 VK1629C --- 通讯界面:STB/CLK/DIO 电源电压:5V(4.5~5.5V) 驱动点阵:120 共阴驱动:15段8位 共阳驱动:8段15位 按键:8x1 封装SOP32 VK1629D --- 通讯界面:STB/CLK/DIO 电源电压:5V(4.5~5.5V) 驱动点阵:96 共阴驱动:12段8位 共阳驱动:8段12位 按键:8x4 封装SOP32 VK1640 --- 通讯界面: CLK/DIN 电源电压:5V(4.5~5.5V) 驱动点阵:128共阴驱动:8段16位 共阳驱动:16段8位 按键:--- 封装SOP28 VK1640B LED驱动IC 8×12段位 8段12位共阴 12段8位共阳 封装SSOP24 VK1650 --- 通讯界面: SCL/SDA 电源电压:5V(3.0~5.5V) 驱动点阵:8x16共阴驱动:8段4位 共阳驱动:4段8位 按键:7x4 封装SOP16/DIP16 VK1651--- VK1651 LED驱动IC 7×4段位 7段4位共阴 7段4位共阳 7×1按键 封装SOP16/DIP16 VK1668 ---通讯界面:STB/CLK/DIO 电源电压:5V(4.5~5.5V) 驱动点阵:70/52共阴驱动:10段7位/13段4位 共阳驱动:7段10位 按键:10x2 封装SOP24 VK6932 --- 通讯界面:STB/CLK/DIN 电源电压:5V(4.5~5.5V) 驱动点阵:128共阴驱动:8段16位17.5/140mA 共阳驱动:16段8位 按键:--- 封装SOP32 VK16K33 --- 通讯界面:SCL/SDA 电源电压:5V(4.5V~5.5V) 驱动点阵:128/96/64 共阴驱动:16段8位/12段8位/8段8位 共阳驱动:8段16位/8段12位/8段8位按键:13x3 10x3 8x3 封装SOP20/SOP24/SOP28 VK1616 ---是 1/5~1/8 占空比的 LED 显示控制驱动电路,具有 7 根段输出、4 根栅输出,是一个由显示存储器、控制电路组成的高可靠性的 LED 驱动电路。串行数据通过三线串行界面输入到 VK1616,采用SOP16/DIP16 的封装形式 VK1618 ---是带键盘扫描界面的 LED 驱动控制专用电路,内部集成有 MCU 数字界面、数据锁存器、键盘扫描等电路。本产品主要应用于 VCR、VCD、DVD 及家庭影院等产品的显示屏驱动 封装SOP18/DIP18 VK1S68C --- LED驱动IC 10x7/13x4段位 10段7位/11段6位共阴 10x2按键,封装SSOP24 VK1Q68D --- 更小体积LED驱动IC 10x7/13x4段位 10段7位/11段6位共阴 10x2按键,封装QFP24 VK1S38A --- LED驱动IC 8段×8位 SSOP24L 封装SSOP24 VK1638 ---是一种带键盘扫描界面的LED(发光二极管显示器)驱动控制专用IC,内部集成有MCU数字界面、数据锁存器、LED驱动、键盘扫描等电路,封装SOP32 KPP638
标签: 0192M 0192 LCD VK 液晶 智能手表 驱动芯片
上传时间: 2022-03-25
上传用户:shubashushi66
设计了农业温湿度智能控制系统,该系统采用DHT11温湿度传感器作为温湿度采集模块,单片机选用AT89C52代替并调用Virtual terminal模拟串口通信,LCD1604液晶显示器实时显示温湿度,实现了温湿度的测量、显示,可自动控制加热、降温、加湿、通风,实现温湿度控制以及超限报警处理,并利用Proteus与Keil进行实际电路的仿真。试验表明,该系统实现了可靠的温湿度监控。We described the design of an intelligent control system of agriculture temperature and humidity.The system uses DHT11 temperature and humidity sensor as the temperature and humidity acquisition module.The SCM adopts AT89C52 to replace and call the virtual terminal for simulating serial communication.LCD1604 displays temperature and humidity in real time,which implements the measurement and display of temperature and humidity.The system is able to automatically control heating,cooling,humidification and ventilation,to achieve temperature and humidity control and over-limit alarm processing.The system also uses Proteus and Keil for actual circuit simulation.The experiment shows that the system is capable of reliable temperature and humidity monitoring.
上传时间: 2022-03-26
上传用户:aben
以仓库智能改造为背景,主要介绍单片机和上位机之间通信网络和通信协议的选择,MODBUS协议通信指令和功能码使用,重点阐述了基于RS-485总线的MODBUS通信协议在上位机和单片机之间的串行通信,实现上位机对单片机设备的远程控制和信息采集的功能。Based on the intelligent warehouse transformation as the background,mainly introduces between MCU and PC communication network and the choice of communication protocol,instruction and the function code using the MODBUS protocol communication,expounds the MODBUS communication protocol based on RS-485 bus serial communication between PC and single chip microcomputer,PC remote control of single chip computer equipment and the function of information collection.
上传时间: 2022-03-26
上传用户:
设计了自动控制系统综合实验案例“基于LabVIEW和单片机的温度控制系统设计”。实验系统硬件部分由单片机、温度传感器、D/A转换模块、调压模块和电烤箱组成,设计了单片机与各个模块之间的接口电路。软件部分采用LabVIEW软件实现控制算法,并设计监控界面实现参数设定、温度数据实时监控等功能。设计了单片机与LabVIEW软件之间的串口通信程序,实现了输入、输出数据的传输。通过综合实验系统设计,使学生得到控制系统设计和实验调试等综合能力的训练。A comprehensive experimental case of the automatic control system is presented,which is the design of the temperature control system based on LabVIEW and SCM.The hardware part of the experimental system is composed of the SCM,temperature sensor,D/A conversion module,voltage regulating module and electric oven.The interface circuit between the SCM and each module is designed.In the software part,LabVIEW software is used to realize the control algorithm,and the monitoring interface is designed to realize the functions of parameter setting,temperature data real-time monitoring,etc.The serial communication program between the SCM and LabVIEW software is designed to realize the transmission of input and output data.Through the design of this comprehensive experimental system,students can get the comprehensive ability training for the control system design,experiment debugging,etc.
上传时间: 2022-03-27
上传用户:qdxqdxqdxqdx
近距电能传输——高效安全近距电能传输一般基于电磁感应原理进行。在此技术基础上,当接收器邻近发射器时才会进行电能传输。电磁感应技术的历史长达百年,多年米一直应用于各类电子产品中—如此普及全因其简单、高效以及安全技术概览以下将为你简要介绍无线电能传输技术。System Overview(Communication)Receiver sends messagesTo provide control information to the transmitterBy load modulation on the power signaTransmitter receives messagesTo receive control information frorn the recelverBy de-modulation of the reflected loadPower Pick Up( Receiver)Secondary coil (L Serial resonance capacitor (C) for efficient power transfer Parallel resonance capacitor(C, )for detection purposes Rectifier: full bridge(diode, or switched)+ capacitor Output switch for(dis)connecting the loadReceiver modulates load by Switching modulation resistor(R,n),or Switching modulation capacitor(Ca)Transmitter de-modulates reflected load by Sensing pnmary coil curent (p)and/o Sensing primary coil voltage (V,
上传时间: 2022-03-31
上传用户:
Universal Serial Bus 4.0 Specification.
标签: usb
上传时间: 2022-04-02
上传用户:默默
高通(Qualcomm)蓝牙芯片QCC5144_硬件设计详细指导书(官方内部培训手册)其内容是针对硬件设计、部分重要元器件选择(ESD,Filter)及走线注意事项的详细说明。2 Power management 2.1 SMPS 2.1.1 Components specification 2.1.2 Input power supply selection 92.1.3 Minimize SMPS EMI emissions 2.1.4 Internal LDOs and digital core decoupling 2.1.5 Powering external components 2.2 Charger 2.2.1 Charger connections.2.2.2 General charger operation2.2.3 Temperature measurement during charging 2.3 SYS_CTRL 3 Bluetooth radio3.1 RF PSU component choice 3.2 RF band-pass filter3.3 Layout (天线 走线的注意事项)4 Audio4.1 Audio bypass capacitors 4.2 Earphone speaker output4.3 Line/Mic input 4.4 Headphone output optimizition5 LED pads 5.1 LED driver 5.2 Digital/Button input 5.3 Analog input5.4 Disabled 6 Reset pin (Reset#)7 USB interfaces7.1 USB device port7.1.1 USB device port7.1.2 Layout notes 7.1.3 USB charger detectionA QCC5144 VFBGA example schematic and BOM B Recommended SMPS components specificationB.1 Inductor specifition B.2 Recommended inductors B.3 SMPS capacitor specifition
上传时间: 2022-04-07
上传用户:默默
高通蓝牙芯片QCC5144 详细规格手册datasheet (共99页)含各个接口说明,应用原理图等信息。 QualcommTrueWireless™ stereo earbuds (无线双耳) Features(特点) ■ Qualifiedto Bluetooth v5.2 specification (蓝牙协议标准5.2) ■ 120 MHz Qualcomm ® Kalimba ™ audio DSP (120MHz 的音频DSP处理器) ■ 32 MHz/80MHz Developer Processor for applications ■ Firmware Processor for system ■ Flexible QSPI flash programmable platform (可编程的QSPI外挂存储器) ■ High-performance 24‑bit audio interface (高性能的24位音频接口) ■ Digital and analog microphone interfaces (含 数字 及模拟 MIC接口) ■ Flexible PIO controller and LED pins with PWM support ■ Serial interfaces: UART, Bit Serializer (I²C/SPI), USB 2.0 (支持串口,I2C, SPI,USB 接口) ■ Advanced audio algorithms (高级的音频算法) ■ ActiveNoise Cancellation: (支持ANC 主动降噪功能) Hybrid, Feedforward, and Feedback modes, using Digital or Analog Mics, enabled using license keys available from Qualcomm® ■ Qualcomm ® aptX ™ and aptX HD Audio (支持独特的aptx 功能)
上传时间: 2022-04-07
上传用户: