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    2,866 mqtt Jobs gefunden

    ...nicht stören. Lieferumfang, den ich erwarte: 1. Stückliste samt DEUTSCHEN Bezugsquellen für alle Bauteile (sofern diese nicht verlötet werden müssen. Ansonsten sollten die Geräte mit Bestandteil des Gesamtpreises sein. 2. Fertig aufgebautes und geprüftes Gerät im beschriebenen Gehäuse, alle Buchsen sauber beschriftet. 3. Vollständiger, kommentierter Quellcode inklusive YAML-Snippet oder MQTT-Schema für die Home Assistant-Integration. 4. Kurzhandbuch (PDF) für Inbetriebnahme, Kalibrierung und eventuelle Anpassungen. Da bisher alle Antworten aus dem Ausland kamen, möchte ich folgendes hinzufügen. Ich benötige das ganze sehr Zeitnah. Daher ist ein Versand aus dem Ausland nur Schweer möglich....

    €189 Average bid
    €189 Gebot i.D.
    18 Angebote

    ...eigenständige Android-App mit einem interaktiven Dashboard, das diese Werte live visualisiert. Geschwindigkeitsanzeige,IO Anzeige und weitere Steuerungsparameter sollen flüssig in Diagrammen, Instrumenten oder Karten erscheinen, sobald das Steuergerät sie sendet. Darüber hinaus will ich die Daten auch außerhalb des Telefons in Echtzeit sehen können. Ob per integrierter Web-Ansicht, WebSocket-Stream, MQTT-Broker oder REST-API ist flexibel – Hauptsache, ich kann von jedem Gerät mit Internet-Zugriff live zuschalten, ohne zusätzliche Hardware. Liefern solltest du: • Komplette Android-APK und Quellcode (Kotlin/Java/Flutter möglich) • Bluetooth-Anbindung an mein serielles 115 200-Baud-Protokoll • Interaktive...

    €579 Average bid
    €579 Gebot i.D.
    63 Angebote

    ...vollständig in meine bestehende Home Assistant-Installation integrieren. Dabei soll der Status meines Tesla-Fahrzeugs (inkl. Ladezustand, Standort, Fahrdaten etc.) zuverlässig angezeigt und für Automatisierungen genutzt werden können. Anforderungen: Installation und Konfiguration von TeslaMate (Docker oder direkt auf dem System, je nach Empfehlung) Integration von TeslaMate in Home Assistant (über MQTT, Grafana, o. ä.) Einrichtung der Tesla-Authentifizierung (Tokenverwaltung, Umgang mit ) Einrichtung von Dashboards in Home Assistant mit Fahrzeugdaten Unterstützung bei der Absicherung des Systems (z. B. Token-Speicherung, Zugriffsschutz) Umgebung: Home Assistant läuft auf einem Intel-basierten ASUS NUC (Proxmox-Umgebung) Internetzugan...

    €24 Average bid
    €24 Gebot i.D.
    7 Angebote

    ...welcher mir eine App für Push Notofications erstellen kann. Diese sollte auf iOS und Android funktionieren. Funktionen der App: - Anzeige der Push Notifikationen in der App - Anzeige eines Widgets auf iOS und Android in welcher die letzten 3 Push Notifikationen angezeigt werden. (Diese sollten nach dem lesen in der App aber verschwinden) - Möglichkeit diese als gelesen zu markieren - Aufsetzen eines MQTT Server / Mosquitto Server um keine third party Lösung für die benachrichtigungen zu verwenden - Nutzer muss es möglich sein sich für verschiedene Themen per Push anzumelden. (Bsp. Störungen, News, Hinweise) - Nach Möglichkeit sollten diese Nachrichten auch unterschiedliche Töne zugewiesen werden können - Um für Push Notofic...

    €489 Average bid
    €489 Gebot i.D.
    55 Angebote

    - Entwicklung von Backends (C/C++, FastCGI) - M2M Kommunikation (MQTT) - Secure Socket Programmierung (DTLS) - Datenbankprogrammierung (MySQL) - Authentifizierungs- und Authorisationsmanagement (z.B. OAuth2)

    €32 / hr Average bid
    €32 / hr Gebot i.D.
    8 Angebote
    Pyton Entwickler
    Beendet left

    Verbindungen von REST / MQTT zu OPC UA über das Edge + Funktionen einees Waagen und Mischrezept

    €49 / hr Average bid
    €49 / hr Gebot i.D.
    9 Angebote

    Hallo, ein fertiges Skript soll mit der Abfrage von 4 Tastern erweitert werden. Tastendrücke sollen an den definierten MQTT Server aus dem Skript weitergegeben werden. Skript läuft auf meinem NodeMCU V3. 4 Taster inkl. dbounce2 bibliothek. A premade script should be extended with 4 buttons. Debounce should be included, Button status should change an MQTT topic on the set webserver. Script is running on NodeMCU V4

    €126 Average bid
    €126 Gebot i.D.
    2 Angebote

    Guten Morgen Daniel wir möchten gerne eine einfachen Showcase aufbauen in dem wir zeigen können wie unsere Plattform per MQTT und REST mit anderen Lösungen, wie z.B. ThingsBoard, interagieren kann. Im ersten Schritt würde es uns reichen beispielsweise einen Maschinenstatus per MQTT darzustellen und eine einfache Abfrage per REST zu realisieren. Daher würden wir uns über eine kurzfristige Unterstützung von freuen. Gruß Jonas Steinfurth

    €17 / hr Average bid
    €17 / hr Gebot i.D.
    1 Angebote

    Diverse Regler und Sensoren für die Kältetechnik Entwickeln und Programieren Mit Raspi, ESP32, MQTT, SQL, ModBus .........usw.

    €1024 Average bid
    €1024 Gebot i.D.
    4 Angebote

    ...entwickelt werden. Die Seiter bietet Einstellmöglichkeiten für den externen WLAN-AP und den MQTT-Broker. Ebenso kann der DeviceName und der Name der Topics eingegeben werden. Durch speichern wir ein Restart initiiert und der ESP verbindet sich mit dem ausgewählten WLAN-AP und dem Broker. Dazu wird eine erste Anmelde Message geschickt. Der ESP wartet bis der Broker eine Start Senden Nachricht sendet. Daraufhin werden die Pakete vom Device (UART 100Byte) als MQTT Message zum Broker gesendet. Über den Broker können 3 Bytes direkt an das Device gesendet werden. Durch ein Byte aus dem Device oder aus dem Broker kann der ESP wieder auf Werkseinstellungen gesetzt werden. DEVICE --> UART --> ESP01 -----> MQTT ----> BROKER...

    €629 Average bid
    €629 Gebot i.D.
    1 Angebote

    Entwicklung einer Prototype App für Home Appliances Kommunikation zwischen Gerät und Mobile App über Cloud Services und MQTT (AWS IoT, Cognito) Statusanzeige des Gerätezustands Steuerung des Geräts Versand von emails Anzeige von statischen Informationen Navigationsmenu Konfigurationsdaten

    €7457 Average bid
    €7457 Gebot i.D.
    58 Angebote

    Erstellen von 2 Nodes für Node Red wie in der Anlage beschrieben. Nodes sollen die Daten aus einer DB oder von einem MQTT-Broker auslesen und die entsprechenden Daten präsentieren

    €540 Average bid
    Dringend
    €540 Gebot i.D.
    7 Angebote

    ...soil-moisture readings and short-term weather data, while also generating three forward-looking insights: predicted soil moisture over the next 6–24 h, likely weather changes in that window, and the water volume the system will probably consume. • Control logic that blends those predictions with simple rule-based safeguards (e.g., prevent watering during rain, pause if flow sensor detects anomalies). • MQTT or HTTP messaging between ESP32 nodes and the Pi, with basic encryption, plus a clear JSON schema so I can expand the network later. • Deployment scripts, pinout diagrams, and concise documentation that let me flash a fresh ESP32, drop it in the field, and see it register instantly on the Pi dashboard. Acceptance criteria 1. End-to-end simulation (se...

    €989 Average bid
    €989 Gebot i.D.
    57 Angebote

    ...Open-Collector outputs with configurable timing (30–300ms). • Command Queueing: Safe handling of concurrent or rapidly incoming commands without interrupting an active pulse sequence. • Secure & Robust Communication: MQTTS/HTTPS with TLS 1.2/1.3, server certificate validation, and secure certificate storage. Implementation of proper MQTT QoS (Level 1/2), including duplicate message detection and rate limiting. • Reconnect Resilience: The device must safely handle MQTT session reconnects and message re-delivery without duplicate execution, ensuring consistent state across network drops. • Transaction Integrity & Persistence: Implementation of idempotent command execution. The execution state must be committed atomically t...

    €483 Average bid
    €483 Gebot i.D.
    51 Angebote

    Embedded Firmware Engineer (ESP32-S3, MQTT/HTTPS, OTA, Local Installer Wizard) – Industrial Pulse Controller Description We are building an industrial Wi-Fi “pulse injector” controller (Payter/Nayax-like) for self-service car wash / vacuum stations. Customer scans a QR on the bay, opens our webapp, pays online, and the device generates configurable “coin pulses” (dry contact and open-collector) into the wash/vac controller. We need an experienced embedded engineer to deliver production-grade firmware for ESP32-S3 with: • Reliable Wi-Fi connectivity and auto-recovery • MQTT (preferred) or HTTPS command channel • Configurable pulse generation (timing, mapping, NO/NC/OC outputs) • Local Installer Wizard (AP mode + web UI) • ...

    €443 Average bid
    €443 Gebot i.D.
    23 Angebote
    AI-Driven IoT Irrigation Control
    4 Tage left
    Verifiziert

    ...soil-moisture readings and short-term weather data, while also generating three forward-looking insights: predicted soil moisture over the next 6–24 h, likely weather changes in that window, and the water volume the system will probably consume. • Control logic that blends those predictions with simple rule-based safeguards (e.g., prevent watering during rain, pause if flow sensor detects anomalies). • MQTT or HTTP messaging between ESP32 nodes and the Pi, with basic encryption, plus a clear JSON schema so I can expand the network later. • Deployment scripts, pinout diagrams, and concise documentation that let me flash a fresh ESP32, drop it in the field, and see it register instantly on the Pi dashboard. Acceptance criteria 1. End-to-end simulation (se...

    €415 Average bid
    €415 Gebot i.D.
    134 Angebote

    ...parsing ◦ Zero data loss under high load • Modbus RTU Master: ◦ Stable polling ◦ Configurable register maps for easy addition of new slave types • Integrations: ◦ MQTT with Home Assistant auto-discovery ◦ OTA firmware updates Dashboard • Frontend Stack: React, Vite, TypeScript, Zustand, Tailwind CSS • Build Optimization: vite-plugin-singlefile ◦ Single compressed HTML (~150 KB) • Hosting: Served locally from LittleFS • UX: ◦ Router-style captive portal for first-time provisioning ◦ Wi-Fi and MQTT setup without cloud dependency 5. Deliverables • Source Code: ◦ Full ESP32 firmware ◦ Complete React/Vite frontend project • M...

    €1550 Average bid
    €1550 Gebot i.D.
    70 Angebote

    ...Shopify’s JSON API and the hardware. Here’s what I already have and what I need from you: • Data source – Shopify: I only care about the store’s Total revenue figure. A lightweight call to the REST Admin API (or GraphQL if you prefer) is enough. I will supply the private-app credentials. • Destination – Hardware counter: It connects over Wi-Fi. You can target it with plain HTTP, WebSocket, or MQTT; whichever is simplest to flash onto a common ESP8266/ESP32 controller. I can handle the flashing if you give me the compiled binary or the Arduino/PlatformIO project. • Service layer: A Python, Node.js, or similar script that polls Shopify at a reasonable interval, parses the JSON response, and publishes the updated number to the device....

    €24 Average bid
    €24 Gebot i.D.
    51 Angebote

    looking for an experienced OT / Industrial IIoT freelancer to develop a small on-premise technical demo (PoC) related to an automotive Paint Shop (Pre-Treatment & E-Coat). The goal is to demonstrate a realistic Industry 4.0 data flow, fully on-premise, without modifying PLC control logic, and aligned with industrial cybersecurity best practices.

    €115 Average bid
    €115 Gebot i.D.
    46 Angebote

    I have an air-quality monitor prototype on breadboard and now need a production-ready PCB. The core of the board will be an Arduino Nano, linked to Wi-Fi for cloud logging and OTA updates. Only a particulate-matter sensor has to be integrated at t...or similar display. • All design files (KiCad or Altium), Gerbers, drill files, a fabrication drawing and an annotated, supplier-ready BOM. • Brief design notes that explain component choices, antenna clearance, power-budget calculations and how to reconfigure the spare headers for future gas sensing. Once I confirm the board boots, connects to Wi-Fi and streams raw particulate data over MQTT, the job is done. I’m happy to answer technical questions quickly so we can move from schematic to final Gerbers without unn...

    €155 Average bid
    €155 Gebot i.D.
    43 Angebote

    ... 1. Source code with Dockerfile and README for local spin-up 2. Deployed stack on my AWS account (API Gateway / Lambda or an EC2-based service, plus an RDS or DynamoDB backend) 3. Minimal front-end dashboard (React or simple server-rendered pages) styled just enough for internal use 4. Postman collection and API schema docs 5. One-hour hand-off session If you’ve connected hardware over MQTT, used AWS IoT Core, or have prior security/CISSP experience, please mention it—those skills will move you to the top of the list....

    €7234571 Average bid
    €7234571 Gebot i.D.
    123 Angebote

    Je souhaite développer un système embarqué destiné à l’automatisation domestique. L’objectif est de concevoir une carte compacte capable de dialoguer, via des modules de communication sans fil, avec divers capteurs et actionneurs déjà présents dans la maison ou ajoutés ultérieurement. Le travail inclut...pour fabrication • Code firmware documenté, compilable sur la plateforme retenue (par exemple STM32 ou ESP32) • Script ou procédure de tests démontrant la fiabilité des transmissions sans fil • Guide de mise en service étape par étape La solution doit rester modulaire afin d’ajouter facilement de nouveaux capteurs ou actionneurs par la sui...

    €385 Average bid
    €385 Gebot i.D.
    12 Angebote

    I’m building a live remote-monitoring dashboard that ingests MQTT messages from a teltonikak rtu 901 gateway along with temperature, pressure, and oxygen sensors and many other parameters from a controller. The stack I have in mind runs on DigitalOcean or AWS and is driven by Python on the back-end and JavaScript on the front-end, but I’m happy to discuss refinements if you can justify them. Current status • Devices is yet to publish raw readings over MQTT. • No cloud pipeline, storage layer, or UI exists yet. What I need next • A lightweight yet secure ingestion service (Python is preferred) that subscribes to the topics, validates payloads, and writes them to a scalable store on DigitalOcean. • A real-time dashboard in JavaScript th...

    €6 / hr Average bid
    €6 / hr Gebot i.D.
    21 Angebote

    The goal is to deliver a complete, production-ready IoT platform that automates a home’s lighting and HVAC while responding flawlessly to Google Home voice commands. Core build • Firmware or edge-side code that speaks to smart switches, dimmers, thermostats and temperature sensors, ideally over MQTT or another low-latency protocol. • Secure cloud back-end (Node.js, Python, or comparable stack) with REST and WebSocket endpoints so the mobile or web dashboard stays in sync in real time. • Database layer for device states, schedules and user profiles; relational or NoSQL is fine as long as latency stays low. • Google Home Action integration, including OAuth flow and fulfilment webhook, so “Hey Google, set living-room lights to 30 %” or &...

    €444 Average bid
    €444 Gebot i.D.
    136 Angebote

    ...firmware and companion software that can collect sensor data, push it to the cloud, and expose a clean API for downstream analytics or dashboards. Core needs • Firmware or embedded code that runs stably on the target hardware (ARM-based MCU) • Edge logic for data aggregation, local caching, and basic alert rules • Secure OTA update mechanism and device provisioning flow • Cloud integration (MQTT or REST) with authentication and encryption in place • A lightweight monitoring dashboard or reference client that demonstrates data ingestion and control commands I already have hardware schematics and a basic data model. Your deliverable will be well-documented source code, build instructions, and a brief test report showing successful connectivity t...

    €6047 Average bid
    €6047 Gebot i.D.
    27 Angebote

    I am setting up an ESP32 to drive an LED display and need reliable firmware that shows plain text messages received over MQTT. The messages will arrive in JSON format from my own application or directly through my broker; the code simply has to subscribe, parse the JSON, pull out the text field, and push it to the display. No animations or extra status indicators are required at this stage—just clear, readable text. Subscribe Topic : iot_display/application_to_display Publish Topic : iot_display/display_to_application Preferred tool-chain is Arduino IDE or PlatformIO with a familiar MQTT library such as PubSubClient or AsyncMQTT. Please keep the pin assignments and Wi-Fi credentials easily configurable in a header or defines section, and make sure the loop stays...

    €118 Average bid
    €118 Gebot i.D.
    6 Angebote

    ...solar plants. Project Objective To design and develop a custom SCADA-based Remote Monitoring System for solar power plants that enables real-time monitoring, analytics, alerts, and reporting. Scope of Work The freelancer will be responsible for end-to-end development, including: 1. Data Acquisition Integration with inverters, meters, weather sensors, SCBs, PLC/RTU Protocols: Modbus RTU / TCP, MQTT, OPC (preferred) 2. SCADA & Dashboard Development Real-time plant monitoring (DC/AC parameters) Plant-wise and inverter-wise dashboards Interactive charts & graphs (generation, PR, CUF, losses) 3. Monitoring & Analytics Energy generation (Daily / Monthly / Yearly) Performance Ratio (PR), CUF Equipment health monitoring Fault & alarm management 4. Alerts ...

    €3544 Average bid
    €3544 Gebot i.D.
    28 Angebote

    ...documentation and lightweight sample code that demonstrates how my developers can extend or modify the integration later. Successful delivery means I can walk through the warehouse, scan any tag, and immediately watch my dashboard update quantities and positions without refreshing or rescanning. If you already know your way around Zebra FX series readers, edge controllers, and standard tools like MQTT, WebSocket, or TCP sockets, we’ll be able to move quickly. I will supply current schema details and API endpoints as soon as we start....

    €280 Average bid
    €280 Gebot i.D.
    13 Angebote

    ...Implement: Vehicle Tracking: Real-time GPS tracking, trips, history, geofencing, alerts, speed monitoring IoT & Device Integration: MQTT connectivity, dashcam metadata, vehicle telemetry, sensors integration Web Dashboard: Fully SESLAA-branded portal with fleet management, analytics, reporting, alert management, and role-based access (Admin, Operator) Mobile Apps: Android and iOS apps for live tracking, alerts, notifications, and fleet management Analytics & Reports: Trip summaries, distance & speed analytics, event logging, notifications Alerts & Notifications: Geofence, overspeed, device offline, emergency alerts via email/push/SMS Security & APIs: Secure REST/MQTT APIs, HTTPS, JWT, and multi-device support Scalability & Future Integration...

    €316 Average bid
    €316 Gebot i.D.
    53 Angebote

    ...and determine its position inside a building by scanning nearby WiFi access points. Every 15-30 minutes (configurable) the unit must wake, calculate its coordinates, and post them to my cloud back-end. A single push-button on the device serves as a service call: when pressed it must instantly trigger two actions—send an email alert and push a notification to our web dashboard through a REST or MQTT endpoint. I am looking for a document set that details: • Hardware architecture: MCU, low-power WiFi module, antenna, sensor package, power source, and enclosure considerations • Firmware flowcharts covering WiFi scanning, interval sleep strategy, and button interrupt handling • Communication protocol, payload structure, and sample API calls for both perio...

    €3555 Average bid
    NDA
    €3555 Gebot i.D.
    25 Angebote

    ...hardware: custom or off-the-shelf waveguide antennas, power supplies, shielding, whatever tightens SNR for indoor use. • Build or refine the firmware and host-side software that pulls radar IQ data, runs real-time signal processing, and outputs clear heart-rate, breath-rate, and motion metrics. Language is flexible—Python, C++, or Node.js are all fine—as long as the API you expose is REST- or MQTT-friendly for my platform. • Provide calibration procedures and a repeatable test routine so I can validate accuracy against reference devices. • Package everything so I can drop it into Docker and deploy to our edge gateway. Acceptance criteria 1. Continuous heart and respiratory rates with ≤ ±3 bpm / ±2 rpm error in a quiet room at 1...

    €20 / hr Average bid
    €20 / hr Gebot i.D.
    83 Angebote

    Hello, I am looking for someone who can write a program for an ESP32. I have an ESP32 wrover devkit c. I also have about 40 ledvance smartlights ble mesh (gu dimmable white). I have installed the nrf mesh app, but would like to have communication with my home assistant server. I would need an ESP program that can make a ble mesh network or can be integrated in one. The ESP will be directed by mqtt (home assistant server) and will than be able to put the lights on/off, change their colour, change the light intensity. The lights can be provisioned by the ESP, but if not possible, I can also do this myself by means of the nrf mesh app. I would need a program for a network that can contain about 40 lamps. We can do the test with 3 lamps. After a successful test, I will then add the res...

    €144 Average bid
    €144 Gebot i.D.
    40 Angebote

    ...core team specializing in full-cycle IoT and embedded product help startups, researchers, and companies turn ideas into fully working, production-ready IoT products, from PCB and firmware to cloud, AI, and mobile Core Expertise Covers the Entire IoT Chain-> Embedded Firmware DevelopmentSTM32, ESP32, Arduino, nRF, PIC, Raspberry PiBare-metal & RTOS (FreeRTOS)BLE, Wi-Fi, LoRa, MQTT, CAN, SPI, I²C, UARTSensor integration, power optimization, OTA updates-> PCB Design & Hardware EngineeringSchematic + PCB design (EasyEDA, Altium, KiCad)Single-layer to multilayer boardsBOM optimization & DFM/DFA supportPrototype-ready Gerbers & manufacturing files-> Cloud, Backend & AI IntegrationAWS, Firebase, custom backend APIsIoT dashboards & device managemen...

    €29 / hr Average bid
    €29 / hr Gebot i.D.
    1 Angebote

    AWS IoT Core (MQTT) Integration – Smart Agriculture IoT Project Status Embedded firmware (STM8 + SIMCOM 7672 GSM): under development Mobile application: ready Web backend: under development Project Requirement Design and integrate AWS IoT Core (MQTT) backend Support GSM-based IoT devices Scalable architecture for multiple farmers and devices Scope of Work Create AWS IoT Core setup (Things, Certificates, Policies) Design MQTT topic structure (telemetry, commands, acknowledgements) Implement AWS IoT Device Shadow (desired / reported state) Command & ACK mechanism (no polling, offline device support) Fleet provisioning workflow for bulk manufacturing Configure AWS IoT Rules Integrate AWS IoT with Lambda and database Define App → Backend &ra...

    €388 Average bid
    €388 Gebot i.D.
    21 Angebote

    ...ThingsBoard Community Edition from scratch and tune it for production: PostgreSQL + TimescaleDB performance settings and backups enable user self-registration (/signup) Design architecture for real users (patients, doctors, trainers). Fully implement test data generator (Rule Engine + Script node) for algorithm debugging and demos (simulate P, Q, CO₂, O₂) Set up real data flow from physical device (MQTT or BLE via smartphone → ThingsBoard) Build beautiful, user-friendly dashboard (single template for all patients): real-time: P, Q, CO₂, O₂ charts large color indicator of current zone all visible in the official ThingsBoard mobile app. If you have experience deploying ThingsBoard for medical/breathing IoT devices — please share. Happy to see screenshots of similar d...

    €422 Average bid
    €422 Gebot i.D.
    18 Angebote

    ...generic. The container must host every bit of the optimisation logic; Home Assistant should interact with it only through a stable, versioned local API exposed on my LAN. Core capabilities I expect: • Optimise solar production in real time • Manage charge/discharge cycles for the household battery • Balance grid usage to minimise emissions and cost The add-on should support both REST and MQTT endpoints so I can choose the best fit for each automation. I also want the architecture ready for commercial rollout: semantic versioning, a straightforward update path, and hooks for future licensing or subscription checks (e.g., token validation at runtime). Deliverables 1. Production-grade Dockerfile and image published to a private registry 2. add-on manifest s...

    €13 / hr Average bid
    €13 / hr Gebot i.D.
    38 Angebote

    ...Local: Optimización para series temporales (5 sensores de suelo + caudalímetro por nodo). - Grafana: Dashboard de monitorización y panel de control de reglas dinámicas. - Python Engine (Core): Middleware para lógica de reglas, procesamiento de payloads y envío de comandos downlink (hexadecimal) para actuación sobre electroválvulas biestables de 5V. Requisitos Clave - Python Avanzado: Manejo de MQTT y lógica de control. - Protocolos: Experiencia con Modbus RTU over RS485 y tramas LoRaWAN. - Docker: Configuración de volúmenes, redes internas y persistencia en SSD. - Hardware: Control de GPIO y uso de Puente H (DRV8833/MX1508) para solenoides biestables. - Networking: VPN (Tailscale/WireGuard) y configurac...

    €2416 Average bid
    €2416 Gebot i.D.
    56 Angebote

    I need a publication-ready article that shows how IoT-enabled embedded systems are reshaping urban life in 2026. The piece must weave together the nuts and bolts of communication protocols such as MQTT and CoAP, explain where edge-side AI fits in, and bring the narrative to life by zeroing in on three flagship use cases: predictive healthcare, energy-efficient grids, and autonomous transport. I want to strike the sweet spot between technical depth and readability so engineers, city-planners, and non-specialist decision-makers all come away feeling informed and inspired. Solid SEO matters too; the article should be structured with a clear H1, logical H2/H3 sub-heads, a concise meta description, and a handful of thoughtfully chosen keywords that help the piece rank for smart-city a...

    €29 / hr Average bid
    €29 / hr Gebot i.D.
    53 Angebote

    ...fabrication-ready Gerbers. Firmware Most peripherals run, yet the connectivity setup is unfinished. I need rock-solid provisioning, reconnection logic, secure MQTT transport, and OTA hooks added to the existing C/C++ codebase. App integration Once the device is talking over MQTT, wire the mobile app to those topics so live sensor data appears in real time and pairing is painless. Deliverables • Revised PCB files and Gerbers • Completed ESP32 firmware with reliable MQTT connectivity • Updated app build showing live data • A brief test report and production checklist Acceptance criteria: the board must hold a stable MQTT link for 48 hours straight, the app must stream data without drops, and all changes compile without warn...

    €283 Average bid
    €283 Gebot i.D.
    21 Angebote

    Just Client connect with MQTT Broker

    €73 Average bid
    €73 Gebot i.D.
    2 Angebote

    ...of that data to the cloud or a self-hosted server so I can view it from anywhere. • A lightweight dashboard—web-based or mobile-friendly—that presents live readings, trends and simple analytics (averages, alerts when limits are exceeded, downloadable CSV). Please write clean, well-commented code (Python preferred, but I’m open to Node-RED or similar if it fits better), set up any required MQTT brokers, databases or APIs, and document the installation process so I can replicate it on additional Pi boards later. Deliverables 1. Source code and configuration files 2. Step-by-step setup guide with screenshots 3. Basic user manual for the dashboard 4. Short verification video that shows the system running and data appearing remotely ...

    €563 Average bid
    €563 Gebot i.D.
    43 Angebote

    ...Backend + React Dashboard + n8n Automation Project Description We are looking for developer(s) to build an MVP of an industrial IoT platform focused on the aquaculture sector. The initial goal is to have a functional system using synthetic data for commercial demonstrations. Technology Stack (Defined): Backend API: FastAPI (Python) Database: PostgreSQL + TimescaleDB Data Ingestion: MQTT / HTTP Automation: n8n (open source) Frontend: React Real-time: WebSocket / SSE Infrastructure: Docker, Hetzner Cloud Expected Deliverables 1. Core Backend (FastAPI) REST API for sensor data ingestion Data validation and normalization Multi-tenant architecture (client isolation) Data traceability Authentication and authorization 2. Database ...

    €1200 Average bid
    €1200 Gebot i.D.
    70 Angebote

    ...lighting systems • Smoke control systems • Lift supervisory panel • Ventilation system • Public-address (PA) system • CCTV system • Sprinkler pump system Remote HQ updates HQ requires three data streams: 1) continuous status of the arm (position, task, faults), 2) instant alerts for any detected or confirmed fire, and 3) regular system-health/diagnostic packets. Push methods can be MQTT, REST, or another secure protocol you recommend, but latency must stay under five seconds for alerts. Acceptance checklist • Robotic arm completes a full patrol loop and logs data without manual input • Any subsystem alarm triggers an immediate HQ alert and on-screen confirmation locally and remotely • Manual override from HQ pauses ...

    €411 Average bid
    €411 Gebot i.D.
    34 Angebote

    I need a production-ready SIAPP container that runs on the Siemens SICAM A8000 platform and acts as an MQTT client. The container must connect to a MQTT broker, read the A8000’s configured digital inputs, analog inputs and status signals, publish those values, and in the opposite direction subscribe to topics carrying status updates and control commands so the payloads can be written straight back into the matching SICAM signals. The work involves building the application on embedded Linux, packaging it as a SIAPP, and verifying it on real demo hardware. Clean logging, reconnect logic, and graceful handling of network interruptions are essential, as this will be deployed in an operational substation environment. SDK: Deliverables • Compiled SIAPP image

    €587 Average bid
    €587 Gebot i.D.
    76 Angebote

    ...lighting systems • Smoke control systems • Lift supervisory panel • Ventilation system • Public-address (PA) system • CCTV system • Sprinkler pump system Remote HQ updates HQ requires three data streams: 1) continuous status of the arm (position, task, faults), 2) instant alerts for any detected or confirmed fire, and 3) regular system-health/diagnostic packets. Push methods can be MQTT, REST, or another secure protocol you recommend, but latency must stay under five seconds for alerts. Acceptance checklist • Robotic arm completes a full patrol loop and logs data without manual input • Any subsystem alarm triggers an immediate HQ alert and on-screen confirmation locally and remotely • Manual override from HQ pauses ...

    €841 Average bid
    €841 Gebot i.D.
    85 Angebote

    ...dashboard versi pertama adalah menampilkan riwayat pengumpulan sampah agar pihak kebersihan dapat mengevaluasi pola angkut dan menyesuaikannya dengan cepat. Lingkup kerja yang saya butuhkan: • Rancang dan integrasikan rangkaian sensor ultrasonik (atau teknologi setara) untuk membaca tinggi sampah. • Kembangkan firmware agar sensor dapat mengirimkan data secara stabil—idealnya menggunakan MQTT atau protokol ringan serupa. • Buat backend dengan database terstruktur untuk menampung log riwayat pengumpulan dan endpoint REST/GraphQL sederhana. • Bangun dashboard web responsif yang memetakan lokasi tong, menampilkan grafik riwayat pengumpulan, serta pembaruan level secara real time. Saya membuka diskusi mengenai stack teknis; Node-RED, Python, at...

    €312 Average bid
    €312 Gebot i.D.
    5 Angebote

    ...dashboard versi pertama adalah menampilkan riwayat pengumpulan sampah agar pihak kebersihan dapat mengevaluasi pola angkut dan menyesuaikannya dengan cepat. Lingkup kerja yang saya butuhkan: • Rancang dan integrasikan rangkaian sensor ultrasonik (atau teknologi setara) untuk membaca tinggi sampah. • Kembangkan firmware agar sensor dapat mengirimkan data secara stabil—idealnya menggunakan MQTT atau protokol ringan serupa. • Buat backend dengan database terstruktur untuk menampung log riwayat pengumpulan dan endpoint REST/GraphQL sederhana. • Bangun dashboard web responsif yang memetakan lokasi tong, menampilkan grafik riwayat pengumpulan, serta pembaruan level secara real time. Saya membuka diskusi mengenai stack teknis; Node-RED, Python, at...

    €493 Average bid
    €493 Gebot i.D.
    7 Angebote

    ...MINI PC via Rasberry Pi - Implement additional sensor card logic for “miss detection.” - Ensure hardware and firmware can adapt dynamically to layout or software changes. 4. Cloud Communication and Remote Control - Enable network communication on MINI PC for remote access and control. - Implement OTA (Over-the-Air) software upgrades and remote monitoring. - Secure cloud connectivity using MQTT and HTTPS protocols. - Provide software architecture documentation for secure cloud integration. 3. Deliverables 1. PCB design package: schematics, Gerber files, BOM. 2. Assembled PCB prototype. 3. Configured MINI PC with game emulation software and integrated sensors. 4. Fully functional 14-hole sensor table prototype. 5. Integrated servo motors and “miss detection&rdqu...

    €397 Average bid
    €397 Gebot i.D.
    59 Angebote