Esp8266 rfid mqtt工作

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    2,000 esp8266 rfid mqtt 份搜到的工作,货币单位为 HKD

    我们需要的是一套使用RFID技术的餐饮系统,餐饮软件安装在PC上,需要实现的功能有两个: 1)RFID读写器与PC相连,RFID标签被读取的时候,可以触发PC上的点餐动作 2)热敏小票打印机与PC相连,我们可以自己定义小票打印模板 详细需求如下: // RFID点餐功能 开发者可以与我商讨RFID标签和RFID读写器的选型 拥有中文版餐饮软件的源码的开发者优先 每一个RFID标签,代表一种菜品,比如苹果、番茄 要求: 1)RFID读写器可以一次读取多个RFID标签 2)RFID读写器的读写速度快,十个RFID标签可以在一秒内读取完毕 // 打印小票自定义 可选热敏小票打印机品牌:佳博,爱普生 要求: 1)能够打印综合营养成分 2)能够自定义打印文字排版 3)字体,字号,对齐 4)能够自定义打印图片

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    我有进行中的、与之前的项目相关的工作parsing jsonarray using Arduino mega with esp8266-12 '

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    1.通过发送0x7a给下位机,每刷一次卡就会传输一串数据回来,将数据解析放入数据库(记录刷卡的id和刷卡时间) 2.网站开发,功能要有:登入管理员模式和游客模式(免登入) 游客模式:只显示,公告和剩余车位,预约功能(通过记录车牌验证) 管理员模式:修改剩余车位数量,显示剩余车位,显示当前系统时间,车辆进出时间(第一次刷卡记录进的时间、第二次刷同一张卡为出的时间) 查询车牌,查询记录,已经预约车位。有兴趣的可以联系,可以删减

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    Project Overview We are seeking a skilled Android developer to create a simple and efficient Car Maintenance Tracker app designed for auto repair shops. The app's primary function is to streamline customer and vehicle management by utilizing RFID technology. Core Features: RFID Integration: The app will utilize an RFID reader connected to the Android tablet to scan customer vehicle tags. Scanning a tag will display the vehicle's service history and stored information. Vehicle & Customer Data Management: For new customers, the app will allow users to create profiles by entering: Customer Name Contact Information (Phone, Address) Vehicle Details (Type, Engine Type, Oil Type, Filter Types, Battery Size, etc.) Additional Notes Existing customer data can be ea...

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    I am seeking a competent software developer to create a program that integrates a robot and RFID reading system, primarily for automating inventory management in a warehouse setting. The successful freelancer should strongly grasp robotics, RFID technology and software development. Their responsibility will be developing a software compatible with both Windows and Linux operating systems that smoothly facilitates communication between the robot and RFID reading system. Requirements: - Expertise in robotics and RFID technology - Proficient in coding for both Windows and Linux systems - Experience in developing software for inventory management - Understanding of warehouse processes and operations Goal: The objective is to make our inventory manage...

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    I'm in need of an experienced developer who can help me write a code for interfacing a 16x2 LCD and RC522 RFID sensor with the Megawin MG82F6D17 microcontroller. The ideal freelancer should be proficient in: - Interfacing the LCD and RC522 sensor with the MG82F6D17 microcontroller - Implementing basic text display features on the LCD - Reading ID data from the RFID tags with the RC522 sensor A deep understanding of microcontrollers and RFID technology is a must for this project. The final code should reliably display the ID data from the RFID tags on the LCD.

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    I am in need of a professional who can efficiently handle an RS485 device that requires reconfiguration. The scope of this project includes: - Th...configuration of the converter with the RS485 device - Ensuring smooth and effective communication between the RS485 device and the TCP/IP Ethernet serial server Preferred skills and experience: - Proficient in working with RS485 devices - Strong knowledge of TCP/IP Ethernet serial servers and hardware programming - Prior experience with Modbus TCP - Familiarity with Arduino, Raspberry Pi, and ESP8266 Your responsibility will strictly be focused on setup and reconfiguration; no modifications on the RS485 device will be necessary. Please only bid if you are confident with this job, have relevant experience, and can deliver the projec...

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    ...have all the hardware including an Arduino Uno R4, a NEMA 17 stepper motor, an A4988 stepper motor controller, an RC522 RFID antenna, a 1602IIC LCD display, and push buttons. All of these components need to be connected to the same arduino. I need this system function as follows: - When the push button is pressed, the stepper motor will be moved X amount of steps in one direction after a delay of 1 second. At this time, the LCD display should display "Scan ID to Unlock". - When a registered and accepted RFID tag is scanned, the LCD will display "Tool Unlocked". When this happens, the stepper motor should be moved X amount of steps BACK to where it came from. - If an RFID card which is NOT registered (ie not valid) is scanned, the stepper mot...

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    ...expectation is you will be able to generate predictive analysis reports. Ideal candidates would be individuals with deep knowledge of Fast API Python and InfluxDB for real-time data analysis and trend predictions. Your ability to not only manage but also find and implement bespoke solutions to challenges within the realm of time-series data analysis will be vital. The Data has to be collected using MQTT Broker by observing various Topics , Later the Topic data will be extracted and Saved into Time Series Databases . During the Storage monitoring real time data and its various topics are required which will further be used to notify Administrators or Clients for new Connection / disconnection . Heavy Data Computation in realtime is required . Your Coding ability will be tes...

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    As a retail outlet owner, I have a SATO CL4NX Plus printer and I am eager to optimize its RFID settings specifically for: - Tag Encoding - Optimization of Read Range settings Ideal candidates to achieve these tasks should be proficient in configuring RFID settings specifically for UHF tags which our retail outlet predominately uses. In addition, experience in configuring RFID for retail settings will be a considerable advantage. KEY SKILLS: - Proficient in tag encoding and read range settings - Familiarity with SATO CL4NX Plus - Experience with UHF tag configurations - Knowledge of RFID usage in retail settings is ideal

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    ...create a GPS RFID system specifically for tracking a golf ball. The system should be very accurate, able to pinpoint the location of the ball within millimeters. This project is not for general location tracking or asset management, it's tailored for a very specific case. Key requirements: 1. **GPS and RFID Integration**: You'll need to create a system that can effectively integrate both GPS and RFID technologies for the purpose of tracking the golf ball. 2. **High Accuracy**: The system must be able to provide the location of the golf ball within millimeters. This is crucial for the success of the project. 3. **Radio Communication**: The tracking system should also be able to effectively communicate the location data using radio. Ideal Skills: - Prof...

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    I'm seeking an experienced flutter developer to expand the key inventory features of our existing product. The key enhancements we're focusing on are: 1. Barcode Scanning: I'm interested in adding a barcode scanning feature that can be operated through both mobile device cameras and dedicated barcode scanners. Your expertise in creating functional and bug-free barcode systems will allow for an easier, more efficient inventory process. 2. Stock Management: I'm also looking to manage essential data related to product availability, sales records, and inventory forecasting. Your proficiency in developing comprehensive stock management systems will aid in making informed decisions, optimizing sales and ensuring product availability. Your quotation should include e...

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    Our company has been active in the field of solar photovoltaics connected to the network for 15 years. We have created an IoT device that sends data using MQTT and pub/sub. Our infrastructure is on AWS and GCP. Our device is able to communicate with a few different devices/products but we need to add some others. New products should be fairly similar to the existing ones as the communication protocols themselves are very similar. We need to be compatible with more products and to make everything work in sync with our current set up. The data is sent to GCP. It consists in frames that need to be decrypted and stored in a mongoDB database. It also sends some information so that the system can understand what kind of frame was sent and how it should be decrypted. Most of the c...

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    I need an experienced Android developer to create an IoT app using MQTT. - The primary function of the app will be asset tracking within a distributed control system. Ideal Skills: - Java based development for Android application - Able to use the resources/SDK at - MQTT with AWS using TLS cert Expected output: - Very basic app to demo one message publish to AWS topic and receive one message from subscribed topic - Demonstrate the mobile app connecting to AWS IoT and Sub-Pub on a topic - Use TLS certs (client, private and root) Demo first: - Demo the basic function first before the order placement Delivery & Payment: - The complete SW code and documentation on the first cut of testing at our end - Use 100% Opensource code - No API's

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    IoT fuel level meter 23 小时 left

    Hi Philipp, In connection to the CanBus project I am thinking about meassuring the fuel level on demand from 'outside' of the car/truck. Do you have any idea? I was thinking in a ESP8266 + Battery + Ultrasound with a round pcb form to be embedded under the fuel tap...

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    So I posted a blog in 3 languages: I'm going to make the blog to show on latest section just like I always did whenever a new blog is live. The issues is, I cannot find the blog. Usually I'll just need to type the blog post name (see attached) and find it but it suddenly stop working. The page in screenshot: Whatever way you are trying

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    Program in Ladder 已经结束 left

    ...up of a central unit, three presence sensors, an RFID tag reader and a siren. The control unit is located inside the residence and has a panel with LEDs. 1 LED lights up steady to indicate system activated. When the control unit is activated and a person passes in front of the sensor in a room, the siren sounds and the violated sector(s) are indicated on the control panel. 3 sector LEDs to indicate a breached room after activation. When violated, it flashes at a frequency of 10 Hz until the alarm is activated until the siren is deactivated. It lights up steadily to indicate the sector violated until the control unit is reset or rearmed. 1 reset button on the control panel. As a result, the violated sector indicator LEDs are turned off. The RFID reader is at the entrance to...

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    ...commercial clients. Key Features: Check out the attached file for complete requirements: High Level Features • Custom Website & Booking Module • Work Order Management • Estimates and Invoices • Bin tracking with map view • Scheduling Routing & Dispatching • Real Time Billing & Invoicing • Reporting & Dashboards • Mobile App (Driver, Dispatcher, Contractor) • Inventory management (Bin #s, Bin Chip RFID) • Driver and Truck Management • Comprehensive Configuration o Custom Fees: Custom fees per city, per customer, per material, per service, per bin • AI - Forecasting of transaction, inventory • API Details: Custom Website & Booking Module: Each vendor will have the ability to configur...

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    I'm looking for an experienced developer who is proficient in Node.js, Docker, and API development to design and implement a project absorbing Sensor data from a Commercial EMQX MQTT source into CrateDB. Key requirements and features include: - Real-time data analytics: Ability to analyze and process sensor data in real-time. - Data Visualization: Data should be presented in a user-friendly and intuitive manner, allowing for easy interpretation and use. - Security and Authentication: Ensuring all data is securely transferred and stored with top-notch authentication methods. The successful candidate will have previous experience with CrateDB, Docker, and API development. Knowledge in IoT-related projects dealing with real-time sensor data will be greatly valued. API will i...

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    ...Cross-platform compatibility: The app should be functional on both Android and iOS devices. - Key Information Storage: The primary goal is to ensure that users can easily input and store their car key's information. - Photo Upload & NFC/RFID Scanning: The app should allow users to upload photos of their car key and scan NFC/RFID tags to retrieve key data. Ideal Skills: - Proficiency in both Android and iOS app development. - Experience in creating user-friendly and visually appealing interfaces. - Prior experience with integrating photo upload and NFC/RFID scanning functionalities. - Strong understanding of database management to ensure the information is stored securely. This project requires someone who is not only skilled in app programming but also ha...

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    I require a sticker design for an RFID fast tag system. This sticker will be affixed to personal vehicles and used for vehicle identification purposes. Key Requirements: - Design a visually appealing sticker for the RFID fast tag system that is suitable for personal vehicles. - Ensure the design is durable and compatible with the RFID technology. Ideal Skills and Experience: - Experience with sticker design, particularly in the context of vehicle identification or similar systems. - Understanding of RFID technology and its implications for sticker design. - A good eye for design that is both aesthetically pleasing and functional. My budget is Rs 300 for 2 option of sticker. sticker size 4 inch by 1 inch. Its simple text a logo based hologram

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    I am looking for someone to develop an extended range RFID antenna for ISO 14443 A protocol that will interface to a Flipper Zero. Antenna and Flipper needs to operate at least upto 50cm but ideally 100cm. Antenna may need an additional driver stages and a battery pack to enhance the range. Anybody who sends me UHF RFID equipment or suggests it will be ignored. ISO 14443 A operates on 13.56 MHz (HF) looking for a Mifare Ultralite solution and EV1/EV2

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    RFID UHF Antenna support 3 天 left
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    Phased-array antenna (8xx-9xx Mhz) or equivalent Active Antenna technology that is software defined, is needed for RFID based passive tags precise RTLS application for a POC we are doing. You may provide any of two options. 1. Source someone to help us find a suitable pre-built antenna system product/solution. 2. Help design a system that will work with an embedded system that is being developed. Software defined, controlled parameters like (not limited to) polarization, steerability, directionality, beam-forming, gain, etc. to have a precise RTLS solution. The scope for area covered, accuracy etc. needs to be defined jointly. the project will not be complete till the scope is achieved. The job is being posted hourly but once a reasonable scope is developed, a fixed price will be ...

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    I require a Laravel developer with profound knowledge of SQL - specifically for data manipulation - and Firebase handling real-time data. The successful candidate will not only have expertise in Laravel development but also have the ability to efficaciously manipulate data using SQL. The ability to store ...efficaciously manipulate data using SQL. The ability to store data into SQL from firebase real-time don Firebase. Ideal Skills & Experience: - Laravel Development - SQL (Data Manipulation) - Firebase (Real-time Data Management) The developer must have a solid understanding and experience with Laravel, SQL, and Firebase. Proven track record in these fields would be advantageous. Also a little knowledge of MQTT but not required, I have html sample page and integration alrea...

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    We would like to hire a freelancer expert in development of Postgres Database and Synchronization of Data from our Headquarter to our Multiple Area Office (10 No.) and to Multiple Local PC (Around 300 Nos.) locations available in Network.

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    We have attached the details we need to sync our data from Headquarter to Area Office and than to local PCs and back again. for RFID based application.

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    I am looking for an expert in RFID technology and .NET programming to integrate the RFID into our current weighbridge system. Key Details: - 3rd Party System was developed using .NET and it does support API or external interface connections. - The task will involve programming to fully integrate the system with RFID technology. Skills and Experience: - Proficiency in .NET programming & SQL Database - Previous experience with RFID technology - Knowledge of API integration - Experience with weighbridge systems would be a huge advantage. Your role will be to ensure the smooth functioning of the weighbridge system post-integration and provide us with a user-friendly, effective RFID solution.

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    SmartInverter IoT 已经结束 left

    The project is to create Inverter automation to start export, stop export and charge the battery automatically using a microcontroller that can subscribe to the server to get spot prices to run the automation. Objectives: 1. Modbus read and write 2. ESP32 Webserver 3. Spot price subscribe 4. Calculation / rules 5. MQTT Service (Server) 6. Price Service (Server) 7. Device Dashboard (Server) Project scope and system architecture are referred to the project brief documentation "Inverter Automation Project "

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    ...industrial setting. Key Job Responsibilities and Deliverables: - Design and develop an IoT device capable of monitoring, controlling and analyzing energy consumption and environmental management for an entire property. - Implement IoT solutions with MQTT, AWS, LoRaWan & Datalogger technologies. - Establish industrial process controls via IoT to enhance energy efficiency and environmental management. Ideal Freelancer Qualifications: - Proven experience in IoT device development, preferably within an industrial setting - Familiarity with MQTT, AWS, LoRaWan and Dataloggers - Proven track record in energy and environmental management - Ability to deliver accurate, property-level data precision. - Full PCB layout, design and development Your advanced skills and experie...

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    ...different aspects of the system. - Secure payment gateway integration for smooth transactions. The platform's design needs to be highly customizable and flexible to adjust according to the changing needs and preferences, without compromising on the visual appeal and user interaction. Ideal Skills and Experience: - Besides proficiency in and Node.js technologies, strong knowledge of MQTT is necessary. - Previous experience with IoT platforms Development and Designing Dynamic Dashboards is a must. - Database design expertise to ensure efficient data management. - Familiarity with payment gateway integrations. - Understanding of robust system designs to create Super Admin, Admin, Client panels efficiently. The developed platform should facilitate effective mo...

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    I am in search of a talented software developer who can seamlessly integrate RFID door lock system, WiFi management, and an online booking system into a user-friendly hotel management system. My aim is to provide a faultless experience to our clients which include hotels, resorts, and bed and breakfast establishments. The functionality must include but is not limited to: - A user-friendly online booking system that reflects real-time room availability - An integrated RFID door lock mechanism - Effective WiFi Management per booking The candidate should ideally possess a comprehensive understanding of PHP, Python, and Java, and have previous experience in building similar systems. Your input and recommendations on how to improve functionality and user experience will be ...

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    I need a freelancer to assist me in connecting my MIT App Inventor to my HiveMQ broker. The main goal of this project is for me to gain knowledge and understanding about IoT connectivity. I have the arduino code working succssfuly when I enter the topic and the message manullay in HiveMQ broker. Now I like to use MIT App inventor to connect to broker and passes the topic & message...succssfuly when I enter the topic and the message manullay in HiveMQ broker. Now I like to use MIT App inventor to connect to broker and passes the topic & messages Key requirements: - Connection of MIT App Inventor to HiveMQ broker - Ability to switch ESP32 LED on/off Ideal Skills: - Proficiency in IoT connectivity - Experience with MIT App Inventor and HiveMQ - Strong understanding of ESP32 and ...

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    I need assistance in simplifying the library management of a Platformio project. I need the openDTU Project to be simplified so that all the network and mqtt stuff is removed. I want just the inverter control functionality in that library so that im able to control it with the ESP32 without internet connection.

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    100 Tons Weighbridge controller PCB design with RFID

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    100 Tons Weighbridge controller PCB design with RFID

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    I'm looking to upgrade my current ESP8266 controller to an ESP32 C3 Mini controller. I am primarily interested in freelancers with specific experience in this upgrade. Here's what I need: Requirement -1 : 1. Update existing Master Controller board based of ESP8266 to support ESP32 C3 IPEX/ (EasyEDA PCB design) 2. Retain GPIO connections and other circuits and components. 3. Ensure the position of LEDs, buttons and interfaces are as in current design 4. Ensure that the device supports handling loads upto 3A total without any heat with each port support upto 1 A Requirement -2 : 1. Redesign existing Zone Expander PCB board from Eagle to EasyEDA 2. Add LED Power indicator option 3. Ensure that the Expander handle upto 3A without any heating and each port handles u...

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    As a seasoned ESP or NODE MCU developer, I am seeking your expertise to integrate and transmit data using Bluetooth after power On. The sensors for which I need to integrate include Temperature, Humidity, PIR motion, Pressure, and an RTD (Resistance Temperature Detector). To elaborate: - Sensor Integration: You need to possess in-depth knowledge about different types of sens...such as Turning on and Turning off the relay. - Data Transmission: After the power is on, the task is to transmit Sensor data using Bluetooth. The ideal candidate would have solid experience with ESP or NODE MCU, a keen understanding of different types of sensors, proficiency with Bluetooth technology, and a knack for implementing efficient data transmission methods. MATTER PROTOCOL IS A MUST MQTT ADV...

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    IoT Firmware Developer 已经结束 left

    I am in need of an expert firmware developer to work on an IoT project. The firmware will be developed for ESP8266. Ideal Skills and Experience: - Proficient in IoT firmware development - Experience with ESP8266 - Knowledge in C/C++ would be a plus The project will involve: - Collaborating in the design of the firmware for the IoT device - Writing efficient and reliable code to run on the ESP8266 - Testing to ensure the firmware works as intended - Offering support and addressing potential issues post-implementation. I'm open to any suggestions you might have regarding the programming languages to be used for this project. I need code to upload in nodemcu esp8266 1) Anyone can connect to internet through SSD and password. 2) it will connect to all hom...

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    ...knowledge. This app must be able to: 1) Use an on-device proxy/VPN server and proxy/VPN configuration to intercept HTTP traffic live ("capture" apps like this already exist) 2) Must be able to apply a domain filter on which traffic to watch for 3) Record all relevant HTTP data - headers, body, and response 4) Captured data will then be immediately sent to a configurable HTTP endpoint 5) Optionally: MQTT endpoint for sending captured data 6) App must run in the background and do this operation perpetually, until stopped This app will only ever be deployed to a single device, so I will likely need help setting up LaunchPad, or bringing up the code in my own developer environment for self-install. The traffic capture going on is literally equivalent to what is already b...

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    I'm in search of a skilled professional who can assist me with the prototyping of a retail RFID product. - **Key Features**: The primary functionalities of this RFID product will include read / unlock abilities. - **Target Retail Items**: I aim for this product to be able to read and unlock Electronics, Books, and Media. - **Hardware Design Requirements**: The hardware design needs to be compact as well as easy to install. Ideal candidates should have a strong background in both hardware and software design as it pertains to RFID technology. Experience in retail-oriented product development is a plus.

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    ...that pulls device telemetry data from an MQTT broker. The dashboard should be able to display these real-time system performance metrics, while storing the data into InfluxDB. The dashboard will be built utilizing React, hence significant proficiency with React, multi-threading, and concurrent connections is required. Key responsibilities will include: - Development and deployment of a real-time dashboard using React. - Incorporating the JWT token for secure communication. - Writing scripts for multi-threading and concurrent connections. - Ensuring that the dashboard can source and display device telemetry data in real-time from an MQTT broker. - Managing the storage of data into InfluxDB from MQTT. Ideal qualifications: - Experience with MQTT protocol....

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    I need an Arduino C expert with experience in sensor integration, communication with other devices, and data logging. To meet all my project needs, the selected freelancer should have skills to integrate RFID and WiFi sensors. Primary tasks include: - Integrating RFID and WiFi sensors into an Arduino C project. - Ensuring seamless communication between Arduino C and Mobile devices/PCs. - Implementing effective data logging. This is a complex project and looking for someone who can provide realistic solutions. Proven work with Arduino C, RFID/wifi sensor implementation, and device communication enhancement will give you an upper hand in your application. Looking forward to discussing further details.

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    ...skilled developer to help me set up an RFID attendance tracking system using a Raspberry Pi and a USB RFID reader. The system should be able to read RFID tags and record the attendance data. Key requirements: - Develop a script that can integrate the USB RFID reader with the Raspberry Pi for attendance tracking - Store the attendance data on an external database - The external database should be an MS Access DB storeb on windows server on lan shared folder data stored to database should be : date/time, cardID (readed card ID), cardReaderID (could be mac address of network interface), cardReaderSN (also could be the mac address of network interace), cardReaderName) Ideal candidate should have: - Proficiency in Raspberry Pi and the ability to set up an R...

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    I'm seeking a professional with expertise in Raspberry Pi programming and Bluetooth connectivity to design and implement a system that interacts smoothly with RFID technology. Key requirements: - The system must save RFID information in a Raspberry Pi. - The recorded IDs need to be sent via Bluetooth once a day. - No need for long term storage, it should overwrite with new IDs daily. Skills and Experience: - Proficient in Raspberry Pi programming - Experience with RFID technology - Strong knowledge of Bluetooth technology for data transfer - Understanding of data storage and overwriting concept

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    I'm looking for a skilled professional to assist with an embedded software project that involves working with microcontrollers. Requirements: RTU shall be connected to...microcontrollers. Requirements: RTU shall be connected to following ETHERNET TCP IP/ MODBUS TCP IP/ SERIAL/ DNP3.0 SERIAL/ DNP 3.0 IP, etc. The ports Profibus and Profinet used protocol converter RTU connections GPRS link over DNP3 /Mod Bus TCP/IP /GSM GPRS servers. The RTU having functionalities analog input, analog output, digital input, digital output. RTU communication protocol: DNP3 level 4 & MQTT Both RTU Serial Comm Protocol: DNP3 level 4 Master/slave and peer-to-peer, Slave, Modbus Master/Slave DNP3 level 4 in TCP Master/Slave, UDP Master/Slave and peer-to-peer, Modbus TCP Server/Client, Modbus...

    $89 / hr (Avg Bid)
    $89 / hr 平均报价
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    We are looking for a Full stack Python developer who can help us to modify Web application that will interface with a AWS (EC2) cloud server. We need someone who has experience with API integration, MQTT, Sockets, MYSQL, S3 bucket, AWS IOT, Dynamo DB, Lambda function, ajax, java script with react, data prediction and analytics, git hub using Python. we can face some issue in web Application. 1. Application surfing slow 2. Application which have showing "Bad Gateway" error. so we want to do Application maintenance. As a candidate, we would like you to submit a proposal that outlines your experience with similar projects and how you can help us achieve our goals. Please include links to any past completed projects that are relevant to this job description. We look forwa...

    $2603 (Avg Bid)
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    I need an RFID solution to manage less than 50 mobile phones stored in key-based lockers. The primary objective is to ensure compliance with our no-mobile-use policy during office hours. Details/Requirements: - Design and implement an RFID solution capable of detecting and tracking the presence of individual mobile phones in the locker. - The system should send timestamps of when the mobile phone is kept inside the locker and when it is taken out, to the server. - The system should generate daily reports to be sent to the administrator with regards to mobile usage for previous day. - The system should be easy to use and does not require advanced technical skill. Skills and Experience: - Proficiency in RFID technology application - Understanding of mobile phone...

    $3775 (Avg Bid)
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    ...Application to an Azure EventGrid MQTT Broker. We have succesfully published to public brokers but are having roadblocks with Azure's Authentication. We are using a for EC Private Key, and for Certificate. The overall task is to successfully publish and subscribe to an Azure EventGrid broker, once you write a client that is capable of connecting to the broker, we will handle the data payload. It's really the Authentication we need. Feel free to use any libraries you want; the process is up to you. The project is in Codesys SP16.5. running on an IFM CR1204 HMI. Would be very impressed if no licensed libraries are required. And would warrant more of a reward. -- Auto generated below -- I'm in need of an experienced Codesys Developer to write a MQTT cli...

    $3181 (Avg Bid)
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    As a developer, I'm embarking on a project to build a UHF RFID reader capable of serving primarily as an interfacing tool on RS232, Wiegand, and WiFi. I'm interested in targeting individuals with specific expertise in: - Understanding and working with UHF frequencies - Designing and integrating with the Wiegand interface, our primary focus - Creating a product compatible solely with UHF RFID tags The ideal candidate would need to have a background in electronic engineering, specifically with a focus on RFID technology and the Wiegand interface. Knowledge of programming for WiFi and RS232 interfaces would be advantageous. If you have previous experience in designing or working on similar projects, it's a big plus. I want to make design which i can easi...

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    ...project, I need an expert who can make a Firmware Over The Air (OTA) update for STM32 using ESP8266 ESP-01 by incorporating Firebase and FreeRTOS. The final function of this system post-firmware update should allow for robust OTA updates. The following details should be noted: - Update Procedure: The firmware update needs to be executed remotely, specifically through a WiFi connection. - Microcontrollers: This project will require a comprehensive understanding of both STM32 (FreeRTOS) and ESP8266 ESP-01 microcontrollers. Preferred skills and experience: - Proficiency in using Firebase for making OTA firmware updates. - Solid understanding and hands-on experience with STM32 (FreeRTOS) and ESP8266 ESP-01 microcontrollers. - Verifiable experience with WiFi communic...

    $3063 (Avg Bid)
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