Mqtt appработы

Задача Цель - Написать программу которая подтягивает данные с WSS, подключение через MQTT, скрипт должен быть написан на NodeJS Обязательные требования чистый NodeJS в один скрипт, т.к. будет использоваться в нашей ограниченной среде разработки, бесперебойная работа скрипта.

Необходимо разработать устройство на основе модуля ESP8266 Либо ESP32, которое будет выполнять сбор данных с датчика расхода воды (импульсный выход) и датчика TDS (аналоговый выход), и дальнейшую передачу этих данных на сервер (MySQL, MQTT либо другое). Кроме того требуется передавать на сервер некоторые дополнительные технические параметры (MAC-адресс модуля, IP-адресс, имя WIFI сети, пароль используемой WIFI сети, напряжение питания, напряжение батареи, температура модуля). В разработку устройства входит: - выбор корпуса (желательно из доступных на рынке Украины); - разработка печатной платы, либо выбор готовых решений на основе предложенных модулей; - разработка програмной части (прошивки) модуля ESP; - разработка приложения для Android/IOS, либо веб версии. - изготовление тесто...

Здравствуйте, lis82! Я обратил внимание на ваш профиль и хотел бы предложить вам свой проект связанный с openwrt/mqtt. Мы можем обсудить детали в чате.

планируется куча устройств, которые через MQTT передают данные о своем состоянии на сервер, дальше все собранные данные надо визуализировать посредством WEB пользователям. данные – бинарные (да/нет), integer. данные собираются от разных датчиков. иногда в обратную сторону от сервера к устройствам тоже что-то может идти (редко) в идеале хочется сразу закрыть все вопросы, но обсуждается и закрытие частей. 1. написать сервис, запущенный на сервере, собирающий по протоколу MQTT данные и пищущий в БД 2. спроектировать БД для хранения собираемых данных 3. отобразить все объекты (стационарые) на интерактивной карте. т.е. при наведении на кратке на объект должно появляться окно с кратким состоянием объекта с возможностью перехода на полный статус объекта. карта ...

I am looking for a skilled Node-RED developer to create a function that will convert my (JSON?) data structure to Protobuf encoding and correctly pass it into a meshtastic mqtt channel. I have a node-red flow that receives a weatherforecast from a telegram bot, and an existing encode function to convert to a protobuf suitable for sending the text via mqtt to the meshtastic project. However it seems that the datastructure fed from the telegram bot into the encode function is not structured correctly. The function should prioritize ease of use, allowing for seamless integration into my existing workflow. Ideal skills for this project include experience with Node-RED, JSON, and Protobuf encoding. A bonus would be knowledge of the meshtastic project (). The relevant

ESP8266 RTOS SDK firmware development for MQTT communication on NodeMCU with specific design requirements. Functionality: - MQTT communication - WiFi connectivity - Sensor data collection Ideal skills and experience: - Experience with ESP8266 RTOS SDK - MQTT protocol expertise - WiFi connectivity knowledge - Sensor data collection experience - Experience with NodeMCU Design requirements: - Work on relays is 90% complete IR blaster Pending Touch panel (UART communication) Pending

UI: Fullscreen browser window that automatically opens up an specific html page Function: The app starts an MQTT (Mosquitto) Client that subscribes to a certain MQTT broker/topic. If a certain topic/value is received the app should wake up the tablet (showing the html page). Some kind of configuration window is needed to change settings for mqtt broker

...control in measuring liquids from industrial containers - BLE protocol expertise and experience - MQTT Data transmission (using Cayenne) - Integration with ThingsBoard The primary function of the software is data collection and transmission, and the communication protocol priority is LoRaWAN. Additionally, the software should have the capability of monitoring battery levels. The ideal candidate should have experience in developing low power consumption software and be able to implement battery level monitoring as well as writing clean modular C code with an understanding of how to accomplish remote in the field firmware upgrades over slower unreliable networks. The transmission of the data will use MQTT leveraging Cayenne encoding and will integrate to a backend system ru...

Hi, I would like created a Java or .NET C# tcp socket server service to accept an incoming connection from a remote GPS device that uses CCE protocol, then translate the binary/hex data into a mqtt message as a json object containing string/int key value pairs. Please ask any question, more details will be given to the right person. Thank you, Chris

Quero testar um broker local – Mosquitto Para isso preciso de um programa que permita que eu simule a quantidade de dispositivos e permita definir a frequência de publicações MQTT. Exemplo: 100, 200, 300, 500 ou mais dispositivos publicando... E que também possa definir o número de Subscriber que irão receber as Publicações. O importante é que o programa faça o descrito acima. pode ser em qualquer linguagem.

I am looking for an experienced firmware developer to assist with the development of firmware on Nordic nrf9160 for our existing business. The primary function of the firmware is data collection and transmission. We require the following specific features in the firmware: - MQTT communication on custom hardware - Low power consumption - Secure communication protocols. The ideal candidate should have experience in developing firmware on Nordic nrf9160 and expertise in MQTT communication and secure communication protocols.

Solo personas de habla Hispana. Necesito hacer un software instalado en Linux, con interfaz grafica que realice lo siguiente: Recopilar datos de varios clientes, MQTT, InfluxDb, OPCua, Modbus, Modbus TCP, mewtocol, Ethernet/IP, etc. Que traspase los datos de cada cliente y que nos de las alarmas que podamos asignar previamente a cada cliente/valor. Los canales de salida para las alarmas son, VoIP,Telegram, Teams, Slack, RSS, Email, SMS, etc. Los canales de salida para BBDD son: influxDB Se busca persona seria, es posible involucrar como socio al 50% si interesa,

necesito crear un servicio pa...capaz de conectarse a un servidor opc-da y opc-hda. el cliente debe permitir explorar la red o manualmente configurar la ip y demas parametros requeridos para la configuracion. Luego de la conexion el cliente me debe mostrar los tagas y ramas disponible en ese servidor al que se conecto y enviarlos via mqtt a un servidor que puedo configurar indicando la frecuencia de lectura de los datos al opc. En resumen, un servicio que me me permita conectar a un servidor opc, consumir la data y enviarla via mqtt a un servidor. Requiero un desarrollador preferiblemente en .net pues es la tecnologia base del protocolo opc. las siguientes librerias permiten la conecion:

I need firmware development for ESP32-C3 for following tasks: -Ultra low power consumption design -Run on 2xAA batteries for more than a year -On-board Digital Temperature Sensor value reading and logging (logging period) -Sending to an MQTT broker (upload period) -Wait for commands from server after data upload -Wi-Fi parameter (SSID, passwd) set over BLE for lower power consumption -Data encryption -no webpage hosting or accesspoint mode needed Those are the main functions of the device. We need an experience for low power programming, we are able to design the circuit.

Hello! I'm looking for someone to help with a project monitoring weight and temperature (modbus rtu). The device used to monitor will be an Arduino, and the communication protocol required for MQTT is Ethernet. Data will need to be published to MQTT at a rate of every minute. Please let me know if you have experience with this type of project or have any questions. Thank you!

...with ESP32. General Qualifications - Developing FreeRTOS projects with ESP - Able to remotely update ESP software - It will communicate with the server via socket connection with MQTT - It will communicate via UART - Provide internet access with GSM Module - Able to communicate with MDB protocol There are ESP32, Quectel EC200 GSM Modules in the project. It communicates with ESP32 and Quectel GSM module via UART. It will also communicate with Vending Machine and Payment Devices with two UARTs. The software on the ESP will be updatable from remote servers. It will communicate with the servers over Socket with MQTT protocol. We are dealing with applications from experienced engineers with ESP32 and Quectel. Inexperienced candidates will not be considered. I expect you to w...

I'm seeking an individual who has experience with ESP8266 Module and DSC and Honeywell equipments. Project involves: - setup easy wifi connect on NodeMCU - Whenever an alert is triggered, send HTTP REQUEST - periodically send HTTP GET and POST REQUEST - parse json response to HTTP REQUEST and publish response - Whenever siren is activated, send HTTP REQUEST - Setup and configure a MQTT broker - provide a well-documented step-by-step process of how to implement these features

I am looking for a skilled freelancer to work on my project titled "Mqtt device data". The project involves working with sensor data sent through MQTT protocol. The ideal candidate should have experience with: - Working with sensor data - Setting up MQTT communication protocol - Monitoring data and ensuring data accuracy The project requires the freelancer to: - Set up MQTT communication using TCP/IP protocol - Monitor data sent from the sensor device for accuracy - Provide a platform for monitoring the data If you have experience in these areas, please submit your proposal.

I am seeking a freelancer who can help me with my RTU SMS-MQTT integration project. The primary goal of this project is to integrate my RTU system with other systems. I am not yet sure which MQTT broker to use, so I am open to recommendations from the freelancer. Additionally, I do not have a preferred programming language for this project, so I am also open to suggestions. Ideal skills and experience for this job include: - Expertise in RTU systems and their integration with other systems - Experience with MQTT brokers and their implementation - Knowledge of programming languages such as Python and C++ - The ability to recommend and implement the best MQTT broker for my project's needs.

...of detected chickens, to a log file. Moreover, the program should send a message via MQTT, containing the same information. Responsibilities: - Develop a Python program to run on a Raspberry Pi with an external USB camera. - Implement image capturing functionality at 30-second intervals. - Utilize advanced image processing and computer vision techniques to accurately count the number of chickens in a designated area of each image, regardless of their age. - Utilize the provided sample photos of chickens at different ages to train and fine-tune the algorithm. - Save the images to disk, including the image name, date, time, and chicken count, to a log file. - Configure the program to send a message via MQTT, containing the image name, date, time, and chicken count. Require...

I am looking for a freelancer who can help me with a project that involves converting MQTT (Message Queuing Telemetry Transport) data to MySQL. Specifically, I need someone who has experience with handling incoming data in JSON format and can extract and store all incoming data in the MySQL database. The incoming data is expected to come in more than once an hour. Ideal skills and experience for this job include: - Expertise in working with MQTT - Proficiency in handling JSON data - Experience with MySQL database management - Strong problem-solving skills to troubleshoot any data transfer issues If you are interested in this project, please let me know your availability and pricing. Thank you!

I am looking for a Thingsboard expert who can integrate Thingsboard Dashboard, Mongo, and MQTT. I already have an existing Thingsboard instance set up, and my primary purpose for the dashboard is data visualization. I will be displaying sensor data on the dashboard. Ideal skills and experience for this job include: - Experience with Thingsboard integration with Mongo and MQTT - Proficient in data visualization and creating custom dashboards - Knowledge in handling sensor data and implementing custom data in Thingsboard - Excellent problem-solving skills and ability to troubleshoot any issues that may arise during the integration process.

Need some help programming 4 models of QR code terminals. - ARM based - run RTOS - can connect to a TMS from the manufacturer - come with C libraries, full documentation, and support (within Eclipse IDE) Specifically, I need to have them - boot - allow them to connect to wifi - connect via wifi to the manufacturer provided TMS (for management) - connect to an IOT broker (for MQTT traffic) I have access to the manufacturer support.

I have an angular project which interact with mqtt. The job is migratting mqtt server to ec2 instance. Mqtt expert is required. Apply with "I can work on anydesk"

I need a freelancer to help me with a project that involves putting MQTT messages form a MQTT broker in a SQL database automatically, and sending messages to the MQTT broker from the web app. Unfortunately, my web hosting does not support Python or Node.js, so I would prefer to use PHP for this project or any other technology. The ideal freelancer will have experience with PHP, MySQL, and HiveMQ. Additionally, I require the use of MySQL as the database system for this project. Thanks in advance for your help!

MQTT Code for Arduino nano - Analog and Digital inputs to MQTT Broken on AWS.

We need to have a small parsing script for our MQTT broker, so we converts a JSON in an endpoint into different individual endpoints. Please contact us if you have previous experience with MQTT.

Looking for freelancer to build or script a method to allow logging directly from an MQTT broker into a spreadsheet (Preferably an online sheet) Should be able to start and stop the MQTT subscribe should be able to parse raw values into separate columns

Embedded Engineer who can write firmware for an Industrial Gateway from Scratch to Hero. Understanding & Experience in a. Modbus RS485 Communication b. 4g Network Communication c. MQTT Communication d. Database for Configuration from System App Open for Fix Bid, FTE, Contract, Hiring etc,.

I am looking for a developer to work on a project that involves using iBeacons with MQTT protocol for tracking the location of objects in real-time. The data should be stored on a server or (possibley the cloud) then presented on a Web Portal. The portal shall allow adding, removing, of gateways, beacons etc and showing the data stream. Use of MQTT as the communication protocol is we need to communicate with the gateways. Develop the program using open source broker such as Mosquitto, HiveMQ, and EMQ X, or the cloud-based MQTT brokers, such as AWS IoT Core, Azure IoT Hub, or Google Cloud IoT Core, which offer scalable and secure MQTT broker services. The web application or any other client can then subscribe to the relevant topics on the broker to receive...

I am in need of a developer who can help me fix a PHP script that will allow me to retrieve data from Hivemq MQTT broker and store it in a MySQL database on a shared hosting environment, and sends data to the broker. The ideal candidate should have experience in the following areas: - PHP scripting - MQTT broker (specifically Hivemq) - MySQL database management - Shared hosting environments The project involves troubleshooting the existing script and making necessary changes to ensure that data is being retrieved and stored accurately.

...emulates an MQTT device, sniffs the network of the device and captures the traffic, and saves the packets into a csv file (dataset). Its important that one or two attacks are executed to affect the traffic. This project requires that the programmer uses Python as the programming language and the MQTT protocol standard. Once the program is complete it should generate a CSV file that can be used for further analysis and machine learning model testing. There is a github project that is very similar to this, which i will link to you and you can use it for reference. I will give you the dataset that the model was trained on so the captured traffic can be similar. This project should be completed in a timely and efficient manner. If you are an experienced programmer who has an u...

I would like a multi-class MQTT tutorial, at first with the most basic concepts (from zero) and increasing the level with each class, starting to beginners and finishing with a professional mastering of the subject, to learn and understand completely how to use MQTT and become proficient of the subject. The minimum total duration of the course with all classes must at least 8 hours. I need good quality on the recording and the edition of the course. Also, the content has to be original, to be able to use it without restrictions. We will sign a contract of copyrighting cession before ending the project.

simulation of a mqtt based network is required which can be scalable.

I am looking for a freelancer who can help me with a simple task to show Mqtt device Live or not. The project requires the following skills and experience: MQTT Device: Raspberry Pi I am using a Raspberry Pi as my MQTT device. The freelancer should be familiar with the Raspberry Pi platform. MQTT Broker Setup: No Help Required I have already set up the MQTT broker. The freelancer does not need to help with the setup. Programming Language: JavaScript I would prefer to use JavaScript for this project. The freelancer should be proficient in JavaScript. The freelancer should be able to help me set up the code to show whether the MQTT device is live or not. The code should be simple and easy to understand. I am looking for a freelancer who can c...

Project Title: Thingsboard IoT Project I am looking for a freelancer who can help me with my Thingsboard IoT project. The main goal of this project is data monitoring. We want to collect data from environmental sensors and monitor it using Thingsboard. The ideal candidate for this project should have experience with IoT device management and data...and can create charts and graphs to visualize the monitored data. Skills and Experience Required: - Experience with Thingsboard IoT platform - Strong understanding of IoT device management - Expertise in data visualization using charts and graphs - Familiarity with environmental sensors and their data output - Experience with dashboard widgets and custom visualizations is a plus. And configure mqtt and influxdb to save database and mak...

Hi there! I am looking for someone to create a set of slides for my Industrial Internet of Things (IIOT) project with MQTT and associated technologies . The slides should be in Powerpoint format and visually appealing, focusing on the benefits of our product. I need someone with creativity, who can produce something unique and eye-catching. The desired output is a set of slides that show a comprehensive overview of our product, focusing on its benefits in an attractive way. The slides should present visually exciting content that displays the value of our product to the audience in a compelling fashion. This project requires someone who is experienced in creating visually compelling presentations in Powerpoint, and who has an understanding of the principles of design in creating ...

I need to use MQTT to send data from Publisher and Subscriber . I want to use Certificates ( Root, Client and Key) to run that code. The Certificates are created using AWS. The above functionality should be done using C# and deployed as a service in Linux machine.

I am looking for a developer to create a website that can display real-time MQTT data through data visualization. The purpose of the project is to display real-time status information (such as temperature and power consumption) received from a population of 100s of remote embedded devices. Users will be able to securely log in and view the data for their own population of devices. They will also be able to send commands (such as reboot) to individual devices. In terms of programming languages and frameworks, I have no specific preference. Communication with remote devices will be using MQTT messages and so an MQTT broker will also have to be implemented along with a simple database to store the received data. The site will probably be hosted on Amazon (AWS). Addit...

I need to implement a proof of concept. I upload some data to AWS IoT Core/MQTT broker on a JSON format. I need to get some values and store them to a cloud timescaledb.

I want an android app. We have a payment plugin application that can be downloaded via Google playstore. The application we will build will open this application by creating a token. It will detect the payment successful or unsuccessful status. Our another device will send the amount by mqtt. He will receive the amount via MQTT. It will publish pass/fail status as mqtt. So both the publisher and the subscriber will be. I am attaching the documents. source codes will be given to me.

... 2. Mqtt broker & client 3. Servo-lift Control via mqtt control 4. Sensor 5. Coin/note acceptor I want a background job running design and function. I want a job that allows customers to choose and pay from the machine, checking the motors on successful orders. Raspberry Pi 2 W and touch screen will be used. General features: 1. It will automatically open on boot. 2. MQTT broker and client will be installed. In various topics, there will be publishers and subscribers. 3. Products will store descriptions, photos, videos if any, price and stock codes and stock codes in itself. Google's Firebase realtime database will pull and save any changes from this data in your product. For each stock code, there will be separate lift and DC motor functi...

... 2. Mqtt broker & client 3. Servo-lift Control via mqtt control 4. Sensor 5. Coin/note acceptor I want a background job running design and function. I want a job that allows customers to choose and pay from the machine, checking the motors on successful orders. Raspberry Pi 2 W and touch screen will be used. General features: 1. It will automatically open on boot. 2. MQTT broker and client will be installed. In various topics, there will be publishers and subscribers. 3. Products will store descriptions, photos, videos if any, price and stock codes and stock codes in itself. Google's Firebase realtime database will pull and save any changes from this data in your product. For each stock code, there will be separate lift and DC motor functi...

I am looking for a skilled developer to help me build an IoT infrastructure that will collect data and allow me to control devices remotely. I have a specific list of devices and sensors in mind for this project. The ideal candidate will have experience with node.js and MQTT over WebSocket protocol, as well as expertise in Azure IoT Hub and Azure DPS Provisioning. Additionally, I require full firmware development assistance for the ESP32 C3.

I am looking for a skilled developer to help me build an IoT infrastructure that will collect data and allow me to control devices remotely. I have a specific list of devices and sensors in mind for this project. The ideal candidate will have experience with node.js and MQTT over WebSocket protocol, as well as expertise in Azure IoT Hub and Azure DPS Provisioning. Additionally, I require full firmware development assistance for the ESP32 C3.

Hello I need a MQTT developer and ESP32 developer for creating a simple home alarm system. Is just open/close GPIOS and SMS or email sending. I already have an example of WEBSERVER built-in in the ESP32 but need to add more zones or utilized more GPIOS

Tìm cộng tác viên Data Engineer Freelancer Thời gian làm việc khoảng 20h/tuần Mức lương 50k – 100k/giờ. Open cho bạn nào muốn làm việc và trả lương theo task Làm việc từ xa, thời gian linh động Công việc chính là HỖ TRỢ TÌM HIỂU về các công nghệ như Apache Airflow, Apache Druid, Apache Kafka, graphQL, flask, postman, MQTT, dashboard/ webapplication, OBC, Moxa, v.v…

Hi, I am looking for a skilled freelancer to develop a home automation application that will be available on both the iOS and Android candidate should also have sound knowledge and experience in backend web-development as the app will require integration with Hardware. Have knowledge about:- 1. IoT 2. MQTT 3. AWS 4. Hardware I am looking for an innovative, creative and proactive individual for this project who will understand my needs and develop an application of the highest quality. The applicant must provide regular updates and screenshots to ensure the proposed outcome aligns with my specifications. Above all, the freelancer should have an understanding of the principles and logic behind home automation technology and be able to apply it to the development of this ap...

• Based on the scenario provided above, determine a tide range. (Hint: use high and low tide values that are reasonable based on the tide data from website). • The publish topic must be “port-tide”. • Do not use authentication. • Create a script to publish the tide values every 5 seconds.

Mô tả: share màn hình hướng dẫn cài đặt mosquitto MQTT broker trên Linux (có mã hóa TLS). Test gửi message trong terminal, phần mềm MQTTX và MQTT explorer Ngân sách: 100k-200k (VND)