Mqttcông việc

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…

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)

Hiện tại tôi cần dev Flutter làm ứng dụng mobile về iot, tech yêu cầu: Flutter, getx, mqtt broker. Đã có ui, api. Làm việc cứ done UI nào thì trả phí UI đó. Sờ kai: da lô: 0985 tám sáu năm 4 năm bảy

1. Viết phần mềm MQTT broker chạy trên máy PC chủ, kết nối với các MQTT clients (MQTT client có thể là thiết bị IOT...) 2. Viết app trên nền tảng IOS hoặc Android, kết nối tới MQTT broker - Đăng ký/Đăng nhập (Tên, điện thoại, mail) - Kết nối MQTT broker - Thêm thiết bị IOT (điều khiển/hiển thị tham số) Có thể tham khảo app Blynk

1. VIết phần mềm MQTT broker chạy trên máy PC chủ, kết nối với các MQTT client ( MQTT client có thể là thiết bị IOT hoặc là PC công nghiệp ) 2. Viết các app trên nền tảng IOS hoặc Android, kết nối tới MQTT broker

...Arduino code from a UDP connection to MQTT. I want to replace the UDP entirely and maintain the existing functionality while adding MQTT. I have the Main Arduino sketch that connects to the server via UDP. This must now be changed and delete all references of UDP and change with MQTT. I have a sample sketch that I have written which connects to my server with MQTT. This must now be ported over to the Main sketch. I have a Mosquitto Broker running on my server. Skills and Experience Required: - Proficiency in Arduino programming - Experience with MQTT protocol - Knowledge of server communication - Understanding of device-to-device communication - Strong problem-solving skills Tasks to be completed: - Port the existing Arduino code from UDP connection...

We are looking for a programmer to finish our firmware, they have delivered it to us and it seems to have errors. Project description: Iot device connected to App and server through MQTT (Already working). We are looking for a collaborator who has the following experience: -Programming in "C" language -Management and knowledge in IDF expressif -Management of free-RTOS -Knowledge of structured programming -Knowledge of ADC signals Jobs to finish: - Wifi local network configuration for Esp32 microcontroller - OTA installation (remote updates via server) - Installation of Radio Frequency module -Code check in "C" to repair it or program it again. We offer: Team of collaborators in all areas (Electronics, App. Backend) Daily support as required. Contact the profess...

I am looking for a Python expert with expertise in IOT, specifically in the areas of Bluetooth and Wi-Fi. The ideal candidate should have experience with MQTT as the preferred communication protocol for the project. The expected data load for this project is heavy. This project involves syncing M2M data with IOTDB. The project requires someone with strong Python skills and experience in handling large data loads in an IOT environment. Budget <$200

...in Android applications ANDROID Foreground Service Expert to handle autonomous Bluetooth data sync in transmit ( Many to Many Sync with Shortest Path Detection and Selection) What we have in mind , The Application Android App will scan for 1 minute and transmit the UUID to central Server , the server will respond which mobile will initiate the communication with the device , it will use M2M ( MQTT Communication ) User on his phone will notify the user in notification bar no to move away from the device the app is trying to connect and will show the progress bar of the communication and data upload. Android Native App ( for version 11,12,13+ ) I am looking for an Android Foreground Service Expert to handle the autonomous Bluetooth data sync in transmit for my project. The m...

...positioning - very high knowledge on RTK, AGPS, DGPS, RTCM 3 - very high knowledge on ESP prototyping The current idea is to use ESP8266/ESP32 based devices, along with central managed solutions. generic goal: - identify the current device position as accurate as possible, preferable a few cm - provide well documented code - send position details with accurate time, accuracy of position via MQTT to MQTT server - positions are stored on device in the case no internet connection available - on having connection all "old" stored data are transmitted first and then current data is sent - schedule of position detection can be configured in seconds - schedule of deep sleep of ESP can be configured in seconds - solution shall be highly energy conserving, since in late...

...positioning - very high knowledge on RTK, AGPS, DGPS, RTCM 3 - very high knowledge on ESP prototyping The current idea is to use ESP8266/ESP32 based devices, along with central managed solutions. generic goal: - identify the current device position as accurate as possible, preferable a few cm - provide well documented code - send position details with accurate time, accuracy of position via MQTT to MQTT server - positions are stored on device in the case no internet connection available - on having connection all "old" stored data are transmitted first and then current data is sent - schedule of position detection can be configured in seconds - schedule of deep sleep of ESP can be configured in seconds - solution shall be highly energy conserving, since in late...

I am looking for a freelancer who can help me with a project titled "Motor Control ( MQTT ) from Website and Design of the Website". Motor Control Functionality: - The specific motor control functionality I require is speed control. Website Platform: - I want my website to be built on a custom HTML/CSS platform. Website Design: - I already have a specific design in mind for the website. Ideal Skills and Experience: - Experience in motor control functionality, specifically speed control. - Proficiency in custom HTML/CSS website development. - Ability to bring my specific website design to life.

I am looking for a full-stack developer with experience in Laravel and React native development. I have the existing code and need to update the server and mobile app. These are the web server and mobile app to control the window opener, thermostat, and temperature sensor. The devices are connected to the server via MQTT and the user can control the devices on the mobile app. If you have experience in building an IoT system, it would be preferred. Please show previous examples in the proposal. These are the source code links. The server is hosted in Digitalocean. Laravel: React Native:

...positioning - very high knowledge on RTK, AGPS, DGPS, RTCM 3 - very high knowledge on ESP prototyping The current idea is to use ESP8266/ESP32 based devices, along with central managed solutions. generic goal: - identify the current device position as accurate as possible, preferable a few cm - provide well documented code - send position details with accurate time, accuracy of position via MQTT to MQTT server - positions are stored on device in the case no internet connection available - on having connection all "old" stored data are transmitted first and then current data is sent - schedule of position detection can be configured in seconds - schedule of deep sleep of ESP can be configured in seconds - solution shall be highly energy conserving, since in late...

...Modification to Add MQTT Client We are seeking a skilled freelancer to modify our existing embedded firmware (Version 3.0) to add an MQTT client. The ideal candidate will have experience in firmware development and MQTT protocols. Preferred MQTT Broker: Yes, we have a specific MQTT broker in mind. However, we are open to recommendations from the freelancer if they have experience with other reliable brokers. Additional Features: - Improved Connectivity: We want to enhance the device's connectivity capabilities to ensure seamless communication with the MQTT broker. - The freelancer will need to ensure that the modified firmware maintains the security enhancements and device management features present in the current version. If you have ...

ANDROID Foreground Service Expert to handle autonomous Bluetooth data sync in transmit ( Many to Many Sync with Shortest Path Detection and Selection) What we have in mind , The Application Android App will scan for 1 minute and transmit the UUID to central Server , the server will respond which mobile will initiate the communication with the device , it will use M2M ( MQTT Communication ) User on hisphone will notify the user in notification bar no to move away from the device the app is trying to connect and will show the progress bar of the communication and data upload. Android Native App ( for version 11,12,13+ ) I am looking for an Android Foreground Service Expert to handle the autonomous Bluetooth data sync in transmit for my project. The main purpose of the foreground...

Need a codesys expert that can create programs and use web based SCADA to complete secure data over MQTT Knowledge of MqTt , ignition is a plus

...positioning - very high knowledge on RTK, AGPS, DGPS, RTCM 3 - very high knowledge on ESP prototyping The current idea is to use ESP8266/ESP32 based devices, along with central managed solutions. generic goal: - identify the current device position as accurate as possible, preferable a few cm - provide well documented code - send position details with accurate time, accuracy of position via MQTT to MQTT server - positions are stored on device in the case no internet connection available - on having connection all "old" stored data are transmitted first and then current data is sent - schedule of position detection can be configured in seconds - schedule of deep sleep of ESP can be configured in seconds - solution shall be highly energy conserving, since in late...

I am l... Remote access to Hardware can be provided for testing. Main Purpose: - The main purpose of using MQTT with the SIM7500 Modem is real-time data communication. The library should support ESP32-WROOM32 SoC with Arduino IDE. Additional Features: - The library should include basic MQTT support, as well as support for MQTTs. - SMS functionality are required. - Library should have functions to check the connections status, maintain connection SIM7500 Modem Support: - The library does not need to support multiple SIM7500 Modems simultaneously. Ideal Skills and Experience: - Experience with Arduino and developing Arduino libraries. - Experience with ESP32 devices - Strong knowledge of MQTT protocol and its implementation. - Familiarity with the SIM7500 Modem ...

...positioning - very high knowledge on RTK, AGPS, DGPS, RTCM 3 - very high knowledge on ESP prototyping The current idea is to use ESP8266/ESP32 based devices, along with central managed solutions. generic goal: - identify the current device position as accurate as possible, preferable a few cm - provide well documented code - send position details with accurate time, accuracy of position via MQTT to MQTT server - positions are stored on device in the case no internet connection available - on having connection all "old" stored data are transmitted first and then current data is sent - schedule of position detection can be configured in seconds - schedule of deep sleep of ESP can be configured in seconds - solution shall be highly energy conserving, since in late...

...scalable WebApp backend - Enable seamless interaction with the existing frontend - Create an adaptive, mobile-first platform - Implement advanced features like geolocation, real-time tracking, and multi-language support Technology Stack: - Language/Frameworks: Node.js + , Java + Spring Boot - Database Management: NoSQL (MongoDB), PostgreSQL, MySQL - Queuing/Messaging: RabbitMQ, Apache Kafka, MQTT, Websockets - Authentication: OAuth, JWT, Passport - Continuous Integration: CI/CD Key Milestones: - Backend Foundation (8 weeks) - Core Functionality Implementation (8 weeks) - Optimization, Testing, and Deployment (8 weeks) Budget Estimate: Total Estimated Budget: $3,000 ** After this Phase, we will proceed with mobile apps development, this is for webapp purpose ** Interested dev...

...Experience: - Strong knowledge and experience in designing hardware and firmware for industrial communication devices - Proficient in Modbus and OPC and MQTT communication protocol - Expertise in custom PCB design - Familiarity with data logging frequencies, specifically continuous and interval-based logging Project Description: We are seeking a talented team with expertise in electrical hardware and firmware design for an industrial datalogger cum gateway communication device. The device should able to take all industrial process parameters and electrical parameters in thr form of RS485 and also direct DI, AI mode to send these data to the server through MQTT communication. This smart gateway device should have inbuilt 4G and 5G GSM sim slot facility in addition to eath...

Do not copy and paste you will not be accepted or do discussed . Start off by saying first line . I believe we can do this because we have …. I need a team that does migrations for a living and has worked on open stack , aws and can fix issues fast Who can configure Colo instantly and find root issues Knows mqtt and can work instantly Need consuktant work to start with and move onto bigger jobs

I am looking for a freelancer to develop a simple web dashboard for a sensor project. The project requires the collection of distance data from the sensor. Using an MQTT Broker online (access provided), you have to connect via MQTT client websocket or MQTT API. 1.- Chart for visually displaying a distance (chart graph working as a level meter obtained value) 2.- Table with Date and Value (date and value obtained from the sensor) 3.- Config button, to put all the MQTT server data connection and topics subscription. 4.- There is a Data scheme already for receiven the data from MQTT 5.- Capable of sending a message to mqtt client in that topic Design Preferences: - I am open to suggestions for the design of the dashboard. - You can use an already m...

I am looking for a skilled mobile developer to create a home automation application with MQTT and AWS server integrations. The primary purpose of the app will be remote control, and it should be designed for both iOS and Android operating systems. The home automation device I’m using is smart bulbs, which the application should be able to monitor and control. I would also like the app to be able to schedule operations, as well as monitor energy usage. If you think the challenge is something you’d be interested in, please reach out and let’s discuss further details.

Ready made platform ready to go to manage battery storage devices using mongo db linked to mqtt with api to link to our application Do not bid if you have not done this before please I have design I just need the backend

...issued and store in memory to be later retrived using ble. Mode 2 (LTE): same as mode 1 plus mqtt, mqtt topics: (ex Box/device serial number/cmd) - lock status (there's a pin to read it) - camera captured image - command topic to recieve from broker - response: to receive command response commands: - unlock - cam capture image - check lock status - update stored pass codes - disable/enable keypad - update broker details (new broker details will apply after reboot) - reboot esp32 Mode 3 (wifi) same as 2 just connection method is wifi ble services and commands: - user service for unlocking and pass codes update and images retrive - configuration service: mode select / read wifi credential update / read mqtt broker update / read serial number update / read keypa...

I am looking for a freelancer who can help me with my project titled "Esp32 Modbus rtu Mqtt/rest api". The project requires expertise in Modbus RTU, MQTT, and REST API communication protocols. Purpose: - The project involves data collection, device control, and data transmission. Timeframe: - The expected timeframe for the completion of the project is more than 2 weeks. Skills and Experience: - Experience with Esp32 and its programming language. - Proficiency in Modbus RTU, MQTT, and REST API protocols. - Strong understanding of data collection, device control, and data transmission. - Ability to integrate these protocols seamlessly. - Prior experience with similar projects is preferred. If you have the required skills and experience, please bid on this p...

i want to make a GPS tracker PCB that will connect to my server using either TCP or MQTT. To achieve this, I'm considering using a main chip like the ESP8266, ESP32, or ATmega328. Additionally, I'll need two other chips or modules: one for GNSS/GPS and another for the SIM data connection. My goal is to achieve accuracy comparable to the Chinese GPS trackers available on AliExpress. I've looked into Quectel and Simcom, but there are numerous options available,i want some combination that offer performance and cost-effectiveness. you can suggest different chips if u think that they should be used. pcb will have some other basic sensors but thats easiest part --only bid if u have experience with gps and gprs/lte

Create a Building Analytics Platform/database using Azure to collect, store, analyse, and visualize data from various building sensors and systems. The goal is to provide our clients with building dashboards that show actionable insights into their building's performance and efficiency. Recommendations on the best and most secure way to communicate with Niagara 4 based Building Automation platforms (MQTT, APIs, etc) and which will allow for easier data mapping for future buildings etc. Scope: - Set up a Microsoft Azure IoT Hub to securely connect and manage IoT devices/sensors. - Configure device connection and authentication methods. - Design and implement a robust database schema to store sensor data efficiently. The adoption of Haystack 4 tagging would be beneficial. - E...

i want to make a pcb that will get gps data and send to my server via tcp (or mqtt) so i want to add there a chip that i can write a code like in arduino : My suggestion is to use 1. esp8266 (or esp32) -( and then via tx rx to conntact the gps and data chip) 2. for GPS: gps neo m8n or 6m 3. for data connection sim8000 You can suggest me any other chip if you think we should use pcb need to have some other sensors to detected movement (if someone shake it or drop it) 5. also orientation ( so i can check if its upside down or up)

C# .Net application (existing project) MQTT client can't connect got issue need to fix. As small task budget as per state. And Payment only SGD If ok, pls contact.

C# .Net application (existing project) MQTT client can't connect got issue need to fix. As small task budget as per state. And Payment only SGD If ok, pls contact.

C# .net application MQTT client can't connect need to fix existing code If interest, pls contact Payment only SGD & as small task see budget range

We are looking for a programmer to finish our firmware, they have delivered it to us and it seems to have errors. Project description: Iot device connected to App and server through MQTT (Already working). We are looking for a collaborator who has the following experience: -Programming in "C" language -Management and knowledge in IDF expressif -Management of free-RTOS -Knowledge of structured programming -Knowledge of ADC signals Jobs to finish: - Wifi local network configuration for Esp32 microcontroller - OTA installation (remote updates via server) - Installation of Radio Frequency module -Code check in "C" to repair it or program it again. We offer: Team of collaborators in all areas (Electronics, App. Backend) Daily support as required. Contact the profess...

I am looking for a skilled developer to create an MQTT Consumer Telegraf Input Plugin for my project. The ideal candidate should have experience in developing plugins using Telegraf. Programming Language: - The plugin should be developed using Python, Java, or Go. MQTT Broker: - I have a preferred MQTT broker that I would like to use. Data Variation Complexity: - The plugin should be able to handle high levels of data variation complexity, including many data variations and complex patterns. This is a long-term project with a fixed cost. If you have the necessary skills and experience, please reach out to discuss further details.

need a full stack developer developer who knows everything about mqtt mosquitto. nice if you also know python development DO NOT WRITE TO ME if you can..

I am looking for a freelancer to upgrade our existing POS system software. The specific requirements for this project include: - Changing the API integration for our payment provider due to a mer...development skills, particularly in the area of POS systems. - Proficiency in API integration and experience with payment provider systems. - Familiarity with bug fixing and performance optimization in software development. - Good experience with esp32 and Arduino ide. In addition, all client details (SSID, pw etc.) is in a JSON file on the esp32 in the spiff, we need MQTT implemented, so that all details stored in spiff can be changed over mqtt. If you have experience in upgrading POS systems and are confident in your ability to handle the firmware changes required, please subm...

I am looking for a developer to create a mobile app for my IOT device. The app needs to be developed for both iOS and Android platforms. The primary function of the app is to both control and monitor IOT devices. I have specific design (MockUp) and feature requirements for the app. Skills and e...app needs to be developed for both iOS and Android platforms. The primary function of the app is to both control and monitor IOT devices. I have specific design (MockUp) and feature requirements for the app. Skills and experience needed for this project: - Experience in developing mobile apps for both iOS and Android platforms - Knowledge of IOT devices and how to control and monitor them with MQTT - Ability to implement specific design and feature requirements for the app PS: Revise f...

laravel code will be provided. develop iot link on leftside menu. iot uses mqtt broker. read document to develop functionality.

I am looking for a midlevel firmware developer with experience in Python programming language. The project requires working with Raspb...with Raspberry Pi hardware platform Ideal Skills and Experience: - Strong understanding of Python and experience in firmware development in RaspBerryPi - Able to understand PCB schematics and develop interfaces for microcontroller components - Proven experience with firmware involving I2C components, GPIO and sensors - Must have knowledge on REST API for IOT integration, and message brokers like MQTT - Ability to work independently and solve complex firmware issues - Strong troubleshooting and debugging skills If you have the required skills and experience, please submit your proposal along with relevant examples of previous firmware development...

I need an Arduino MQTT logger that will read, process, and send data to an MQTT server. The logger will be recording 4-20mA signal sensor data. The frequency at which the logger will record data will vary, allowing for a variable data rate. Other Peripherials are available as (current consumption, temperature sensor I2C, EEPROM I2C, RTC I2C, I/O Expander I2C mainly). If there is no connection to the internet. Sensor log is stored in eeprom. While back online, send data queue packets. Arduino UNO + Ethernet Shield 2 + custom board for peripherals --> connected to ethernet to obtain internet (No wifi) Connect to Hive MQTT Broker online. Skills and experience required for this project: - Proficiency in Arduino programming - Knowledge of MQTT protocol and serv...

I Need someone as a professional system architect within iot platform based on MQTT. need good alternatives to IBM iot-Watson. I need help and advice to make a choice for my product

Current flutter app gets json data from mqtt broker. 1. Adjust UI based on additional json data formats. 2. Remap the app to use new format. 3. Connect to mobile app to web for authentication/approval etc. 4. Adjust app settings screen. Will provide anydesk access.

I am in need of a programmer who is experienced in working with MQTT Broker, InfluxDB, VictoriaMetrics, and AlertManager. The project requires the use of Python as the preferred programming language. Scenarios .. 1. I have a device which when i link to a wifi , it creates a new topic and starts pushing mqtt data on it. As we want to monitor mqtt data , we need a mechanism to know what new topic / device started sending . Now Consider every 1 day 100 new devices are creating new topics and publishing data over mqtt broker and we need to parse and data and perform alert/ save etc. Since the Format of MQTT might differ as there are different models publishing . I am looking for solution expert who can work and solve the problem of scalability and reduce...

...configuration data that has been created. then perform simple filtering on the data obtained in the form of conversion or adding simple arithmetic operations. Then the data can be processed directly to be sent to the server via mqtt / opc but if needed for further processing can be entered into the queue for processing. after that the data can be sent. - Management Operational There is an identifier for each data based on the configuration data that has been created. and the identifier is set in the options menu. besides that there is also a menu for setting the mqtt / opc configuration. Like a Keepware (IOT Gateway) The freelancer should be able to understand the client's hardware requirements and develop a robust and efficient gateway application that ca...

Buscamos un programador para acabar nuestro firmware, ya que nuestro colaborador actual no podrá estar por un tiempo por asuntos personales. Descripción del proyecto: Dispositivo Iot conectado a App y a servidor a través de MQTT (Ya funcionando). El firmware en su mayoría esta acabado, las tramas y ordenes ya programadas funcionan perfectamente. Buscamos a un colaborador que tenga la siguiente experiencia: -Programación en lenguaje "C" -Manejo y conocimientos en espressif IDF -Manejo de free-RTOS -Conocimiento de programación estructurada -Conocimientos en señales ADC Trabajos a terminar: - Configuración de red local Wifi para microcontrolador Esp32 - Instauración de OTA (actualizaciones en remoto a trav&ea...

...for a freelancer who can integrate an MQTT client with an existing Win32 C application (). The purpose of this integration is to enable real-time data communication. At this stage, publishing only is required, no subscription. Skills and Experience: - Strong experience in Win32 C programming - Knowledge of MQTT protocols and concepts - Familiarity with the Mosquitto MQTT broker - Understanding of real-time data communication principles - Ideally some knowledge of B&R Automation PVI interface, although this is well documented and we can offer guidance there. Specific Requirements: - The integration should be compatible with the Windows XP 32-bit operating system and consist of a single portable executable file - The MQTT client should be able to connect ...

I am looking for a freelancer who can help me with my Bluetooth Commands over MQTT project. The main goal of this project is to implement Bluetooth commands over MQTT. Preferred Platform: I would prefer to implement MQTT using CloudMQTT. Report Generation: I have specific guidelines for the report generation and I am looking for someone who can meet these requirements. Skills and Experience: - Strong experience in implementing Bluetooth commands over MQTT - Proficiency in working with CloudMQTT - Ability to generate reports based on specific guidelines - Knowledge of Python is required as the project involves developing a Python service. Please note that this is a fixed cost project with a budget of $7500.

Serial to MQTT bridge I am looking for a freelancer who can develop a serial to MQTT bridge for my project. The bridge will need to communicate with a serial device using the RS-232 protocol. Skills and experience required: - Strong knowledge and experience in serial communication protocols, specifically RS-232 - Proficiency in MQTT and experience with the Mosquitto broker - Ability to develop a bridge that can convert serial data to MQTT messages and vice versa - Familiarity with IoT platforms and MQTT data publishing Data publishing frequency: - The desired data publishing frequency on MQTT is 2 to 5 min Please note that the project requires a strong understanding of serial communication protocols and MQTT, as well as the ability to d...