Mqtt jobs

... paired with a DHT22 sensor. Collected readings must be published over MQTT to my Supabase/PostgreSQL back-end. The device will sleep most of the time, wake on schedule, take a reading, push it securely, then drop back into deep sleep. It also has to recognise a lost cellular link, attempt reconnection gracefully, and log any failures for later review. Power comes from a Li-po pack, topped up through a USB-C port, so the design needs an efficient charging and protection stage. Please deliver: • Complete, readable schematic (PDF + source) • Production-ready PCB layout with Gerber files • Fully documented Arduino/C++ firmware including: – Deep-sleep logic with wake intervals adjustable over serial – MQTT routine targeting Supabase...

...deployment approach. The scope of work includes: Validation of live CAN/J1939 telemetry packets against expected parameter IDs and signal integrity Structuring and organizing the telemetry environment, including naming conventions, device grouping, access permissions, and data hierarchy Configuration of reliable export workflows, including API-based exports and scheduled CSV delivery mechanisms, with MQTT capability considered optional for future scalability Documentation of the full deployment and configuration process to support repeatable rollout across additional assets and fleet deployments The desired outcome is a stable, scalable, and reproducible telemetry pipeline capable of delivering clean, structured data directly into the ESSNA AEMS™ environment for downstre...

I’m putting ...any other sensor technology you feel is best suited to the job, provided it stays reliable outdoors. What I need from you: • A complete hardware design: schematics, PCB files (if applicable), and a clearly identified bill of materials. • Firmware or microcontroller code that flags “object present” / “object absent” events for each shelf and can push that data over a simple interface (UART, I²C, MQTT—your recommendation). • A brief test protocol showing how you validated detection accuracy with different item shapes and materials. • Installation guidelines so a non-engineer can mount, wire, and weather-proof the system without guessing. If you’ve built anything similar, a short note on the resul...

...using parallel teams**. --- **Scope of Work:** You will be responsible for end-to-end implementation: 1. **PLC / HMI Data Extraction** * Configure HMI relay (GOT Gateway / FTP) * Map PLC registers (D, M, T, C) 2. **Edge Gateway Setup** * Linux-based gateway configuration * Data acquisition + buffering 3. **Communication Layer** * MQTT over TLS (QoS 1) * Reliable data transfer + backfill 4. **Backend Integration** * MQTT broker + InfluxDB * Data ingestion pipeline 5. **Validation** * <2 sec latency * Zero data loss * Stable PLC performance --- **Execution Model:** * Work will be executed via **parallel deployment teams (pods)** * Each engineer will handle assigned machine batches * Standardized deployment process will be fo...

...immediate confirmation. • Store a full access history—time-stamped events and which user issued each command. • Present all of that data in a detailed dashboard: live widgets, trend graphs, charts, and a scrollable log panel. • Send email and push notifications if the gate is forced, left open too long, or if the Pi or server drops offline. Core tech is flexible as long as it’s reliable; MQTT, Python, Node-RED, or direct ThingsBoard integrations are all fine. The server is already provisioned (Ubuntu 22.04, root access ready). I’ll want clean code, commented where it matters, and a short deployment script so I can recreate the setup on a spare Pi if needed. Deliverables 1. Raspberry Pi image (or Ansible/Bash script) that: – Drives...

...changes will be handled exclusively through these apps, not on the Pi itself. Real-time sync is important so the machine always enforces the most recent rules. I already have the Pi talking to the MDB harness and a skeleton API, so you will be extending existing Python code (or replacing it if faster) and wiring it to a clean frontend. Preferred stack is Python or Node.js on the Pi, REST/JSON or MQTT for communication, and any modern framework you like for the apps—just keep it lightweight and secure. Deliverables 1. Pi firmware/service that listens to MDB events, checks vend requests against limit rules, and logs every transaction. 2. REST API (hosted on the Pi or small cloud instance) exposing endpoints for limits, FOB CRUD, and schedule settings. 3. Responsive web dash...

...changes will be handled exclusively through these apps, not on the Pi itself. Real-time sync is important so the machine always enforces the most recent rules. I already have the Pi talking to the MDB harness and a skeleton API, so you will be extending existing Python code (or replacing it if faster) and wiring it to a clean frontend. Preferred stack is Python or Node.js on the Pi, REST/JSON or MQTT for communication, and any modern framework you like for the apps—just keep it lightweight and secure. Deliverables 1. Pi firmware/service that listens to MDB events, checks vend requests against limit rules, and logs every transaction. 2. REST API (hosted on the Pi or small cloud instance) exposing endpoints for limits, FOB CRUD, and schedule settings. 3. Responsive we...

...(Xtensa/RISC-V), Nuvoton, PIC, and Atmel (AVR/SAM) platforms. * RTOS & Firmware: Advanced proficiency in FreeRTOS (specifically for ESP32/ESP-IDF), multitasking, and low-latency system architecture. * Development Environments: Power user of industry-standard IDEs including Keil MDK, IAR Embedded Workbench, and VS Code (PlatformIO/ESP-IDF). * IoT & Connectivity: Deep understanding of IoT protocols (MQTT, HTTP, CoAP) and wireless integration (Wi-Fi, Bluetooth/BLE, LoRa). * Hardware & PCB Design: Strong foundation in electronics, including schematic capture, PCB layout, component selection, and hardware-in-the-loop debugging. Professional Philosophy: Bridging the gap between hardware and software by designing efficient, scalable embedded systems that prioritize power ma...

I need to completely re-engineer our current door-access controller so it speaks MQTT, then wrap that functionality inside a Python-based web application backed by an SQL database. The hardware vendor has supplied only raw documentation; no existing code can be reused, so everything—from the MQTT communication layer to the UI—must be rewritten. Core scope The finished system must let us issue open/close commands in real time, store every transaction, and deliver extensive reporting. Report generation, filtering options, and door control are all mandatory. The client will periodically push raw data straight into the database; the application should pick it up automatically and fold it into dashboards and downloadable PDFs that can easily exceed 50 numbered pages...

FoxTrack Bridge: Cloud MQTT Mode + UI Redesign FoxTrack () is a cloud-based 3D printing business management app. FoxTrack Bridge is an existing Go application () that users run on their local network to connect Bambu Lab and Klipper printers via LAN. The app is already built, tested, and in production, this job is to extend it with a new connection mode, redesign the setup UI, add a few features, and ensure it works as intended. 1. Bambu Cloud MQTT mode Currently the app only supports LAN Mode printers. I want to add a cloud connection path so Bambu Lab printers work without LAN Mode enabled. This means: - Login to Bambu Cloud API (email/password + 2FA handling) to get a token - Connect to `` using that token -

... * Energy meter (kWh tracking) * GSM/WiFi module (communication) * Implement communication between device and backend (HTTP API or MQTT) * Build and manage *OTA (Over-The-Air) firmware update system* * Ensure *offline functionality* (device should enforce rules without internet) * Implement *anti-tamper mechanisms* (bypass detection, alerts) * Collaborate with ASP.NET developer for API integration * Support prototyping, testing, and deployment --- ### *Technical Requirements* * Strong experience with *embedded C/C++ (Arduino or ESP-IDF)* * Experience working with *ESP32 or similar microcontrollers* * Knowledge of *IoT communication protocols* (HTTP, MQTT) * Experience with *GSM modules (SIM800/SIM7600)* is a plus * Familiarity with *energy metering or sensor integrati...

...states), PCA9685 servo control via pigpio, HC-SR04 ultrasonic sensing, GPS telemetry, and real-time MQTT communication on Raspberry Pi (C). The companion Flutter app handles MQTT-based robot control, ML Kit face detection for owner recognition, and speech-to-text command input. I also built an LLM-powered HR onboarding automation system during my internship — a RAG pipeline (FAISS + LangChain + GPT-4o) that reduced onboarding time by 87% and achieved 94.2% policy answer accuracy, deployed to 40 new hires in a live A/B pilot. What I can do for you: 1. ESP32 / Raspberry Pi firmware (C, C++, pigpio, PlatformIO) 2. Sensor integration: ultrasonic, IMU, GPS, capacitive touch, current sensing 3. MQTT, BLE, UART communication protocols 4. Flutter mobile app developm...

...(Xtensa/RISC-V), Nuvoton, PIC, and Atmel (AVR/SAM) platforms. * RTOS & Firmware: Advanced proficiency in FreeRTOS (specifically for ESP32/ESP-IDF), multitasking, and low-latency system architecture. * Development Environments: Power user of industry-standard IDEs including Keil MDK, IAR Embedded Workbench, and VS Code (PlatformIO/ESP-IDF). * IoT & Connectivity: Deep understanding of IoT protocols (MQTT, HTTP, CoAP) and wireless integration (Wi-Fi, Bluetooth/BLE, LoRa). * Hardware & PCB Design: Strong foundation in electronics, including schematic capture, PCB layout, component selection, and hardware-in-the-loop debugging. Professional Philosophy: Bridging the gap between hardware and software by designing efficient, scalable embedded systems that prioritize power ma...

...expansion to 5–7 people) Ensure architectural reliability, security, and scalability (including new markets like Australia and Europe) Participate in pilot projects and close critical technical gaps (HA, AI metrics, threat model) Who we are looking for: Experience as CTO / Tech Lead / Senior Architect in an IoT/AI startup (from MVP to commercial pilots) Hands-on experience with: LoRa, Modbus, MQTT, edge buffering (C/Rust/Python), time-series anomaly detection, microservices (Kafka), cloud (AWS), CI/CD, security (TLS, OWASP) Ability to hire, mentor, and lead developers Fluency in English (documentation, calls) What we offer: Equity stake in the project – to be discussed individually with the right candidate. This is a partnership role with no fixed salary at t...

...(temperature, vibration, current, etc.) coming from a set of industrial assets and I need a reliable machine-learning workflow that turns those raw readings into timely maintenance predictions. The goal is clear: forecast when each machine will require attention so downtime is minimized and spare parts can be scheduled in advance. You will receive a historical data dump (CSV and Parquet) plus a live MQTT feed for validation. After exploring and cleaning the data, build a model—traditional algorithms or deep learning, whichever gives the best performance—that outputs a remaining-useful-life score or binary “service-now” flag for every asset at regular intervals. Python with scikit-learn, TensorFlow or PyTorch is preferred so the final solution stays easy t...

...immediately publish the results to a cloud back-end for long-term storage and analytics. No on-device history needs to persist once the upload is confirmed, so the code should free local buffers promptly to keep RAM usage low. Core requirements • Real-time capture, template creation and matching on the ESP32 (FreeRTOS / ESP-IDF or Arduino-ESP32—whichever you’re fastest with). • Secure HTTPS or MQTT push to the cloud of my choice (AWS IoT Core is preferred, but your proven alternative is welcome). • Robust reconnection logic to avoid data loss during network drops. • Over-the-air update hooks so future firmware revisions can be flashed remotely. • Clean, well-documented C/C++ (or MicroPython if memory footprint is proven acceptable) ...

...changes in real-time using a load cell sensor and transmit the data to a web-based interface. Hardware Requirements: ESP32 microcontroller (Wi-Fi enabled) HX711 load cell amplifier Load cell (weight sensor) Stable and accurate measurement (handle noise and drift) Software Requirements: ESP32 firmware (C/C++ / Arduino framework) Real-time data acquisition from HX711 Wi-Fi communication (HTTP or MQTT) Data transmission to a web server Web Interface: Simple dashboard (web-based) Display current weight in real-time Show changes (add/remove items) Optional: alerts when weight changes beyond threshold Key Challenges: Noise filtering and stable readings Calibration of load cell Handling drift over time Reliable wireless communication Deliverables: Working ESP32 code Web interf...

ESP32 and Arduino will drive every part of this project, turning ordinary lights and appliances into WiFi-enabled devices that I can switch on or off, schedule, and monitor from a custom mobile application. The core involves designing smart switches, integrating common sensors, and pushing data to the cloud through MQTT and Firebase so I get real-time status updates wherever I am. I expect clean, well-commented C++ firmware, a neat PCB layout that is ready for fabrication, and a companion app built with Blynk IoT or a comparable framework. Android and iOS support are both welcome; feel free to recommend the most efficient route. Because I plan to scale beyond a prototype, component selection, power-safe routing, and OTA update capability are important. Clear circuit diagrams a...

...application so user can prefix the slot seeing the availability. I want a web based application which allows for user registartion where we capture face and other details and after that the user undertake some tests where IOT devices send data and which need to be correlated to user with date time. The system need a sensor IOT application also that listens to live sensor data arriving over MQTT (a raw TCP socket fallback is acceptable), stores each payload, and pushes the readings straight onto a real-time monitoring dashboard. The same backend must expose a small REST API so other systems can pull the latest value, a historical slice, or a simple health check. I prefer we use Postgresql like database so can maintain data records for 12 months easily. The data can be corelat...

...user interface (front-end). Interaction with our AI models will be handled through a pre-developed lightweight API. The front-end has push messaging capabilities, which have already been implemented using MQTT. The selected team members will be responsible for: - Customizing the Vuexy template in React to meet the specific requirements of our product. - Developing intuitive visual and graphical interfaces to effectively present the information processed by the AI ​​models. - Integrate and consume the existing API for communication with AI models. - Ensure the correct functioning of MQTT-based push messaging. We are looking for professionals with a deep understanding of the React development process and experience creating user interfaces that visualize complex data cl...

...already have and what I expect from you: • Sensors & acquisition: I can source standard piezo or MEMS accelerometers and an RPM pickup, but I need guidance on the optimal sensor grade, mounting positions, and a compact DAQ (Raspberry Pi, ESP32, NI cDAQ, or similar—open to your recommendation) capable of simultaneous sampling. • Connectivity & protocol: Data has to leave the shop floor securely. MQTT or REST over Ethernet/Wi-Fi is acceptable; if you favour another lightweight protocol, let me know why. • Cloud/backend: A small AWS, Azure, or on-prem InfluxDB/Grafana stack is fine so long as I end up with a browser-based dashboard that shows live values, historical plots, and colour-coded alarm states. Automatic e-mail/SMS alerts when vibration exc...

...app, and the ESP32 instantly confirms that the payment succeeded before triggering the rest of my system. What matters most is rock-solid transaction verification. The device must generate or display a QR code, listen for the incoming callback from PhonePe (or poll, if that is the only option PhonePe’s API allows), parse the response, and expose the result locally (GPIO change, serial print, or MQTT publish—I’m flexible on that detail as long as it is reliable). No receipt printing or push notifications are required; I only need a clear success/failure confirmation along with the amount and transaction ID. I already have the hardware (ESP32-WROOM, 2.4-inch TFT, and internet connectivity via Wi-Fi). What I’m missing is the firmware plus the exact API inte...

...ignition status, fuel-level sensor and an output relay for safe engine cut-off. • Over-the-air firmware update support so I never have to recall a device for basic fixes or tweaks. Firmware & Protocol The device should package GPS, fuel and status data in efficient binary or JSON packets and push them to my server over GPRS at configurable intervals (default 10 s when moving, 60 s when idle). MQTT or a lightweight TCP protocol is preferred for low latency. Downlink commands must allow engine cut/restore, geofence table updates and sampling-rate changes. Server & Interface A cloud-hosted backend (Node.js, Python or PHP with MySQL/PostgreSQL) will ingest the data, persist it and expose REST/WebSocket endpoints to a responsive web dashboard and an Android/iOS ap...

...development, covering everything from hardware design to firmware, cloud backend, web dashboard, and mobile you have an idea or an existing prototype, I can help you turn it into a fully working, production-ready IoT services include:• Custom PCB design, schematic & BOM • Embedded firmware development (ESP32, STM32, Arduino, nRF) • Sensor integration & communication (BLE, WiFi, LoRa, GSM, MQTT, Modbus) • Cloud backend & API development • Real-time dashboards & data visualization • Mobile app development (Android/iOS) • OTA updates, logging, and system optimizationI specialize in building scalable and reliable systems for applications like smart home, industrial automation, energy monitoring, healthcare, and tracking get a comp...

...feed data to– and receive commands from – an IoT dashboard app. The new build must keep every existing VoIP feature intact while adding: • A clean, non-blocking interface between the VoIP tasks and the new IoT task set. • Support for both voice playback and tone generation exactly as the current audio path provides. • Reliable sampling of the two AIs along with any DI events, packaged for MQTT/HTTP (whichever you find lighter on resources) so the dashboard can visualise live values and trigger actions back over RS-485 or GPIO. You are free to reorganise the code, create additional FreeRTOS tasks or refactor drivers as long as flash/RAM use stays within ESP32-WROOM limits. I will supply the present firmware, schematic and test credentials for t...

...workflow. From there it should dive straight into Technical Specifications aimed squarely at fellow developers. Key areas that must be covered • User Registration & Authentication – flow diagrams, data models, recommended encryption/auth methods (JWT, OAuth2, etc.). • Booking & Payment Process – booking life-cycle, real-time fare calculation, third-party payment gateway integration, WebSocket or MQTT suggestions for live status updates. • Driver & Vehicle Management – driver onboarding, vehicle records, assignment logic, availability tracking. Technical depth Please outline recommended tech stack options (e.g., Node.js/Express or Django for the backend, React or Vue for the frontend, relational vs. NoSQL storage, Redis for qu...

Project Title: OEE Monitoring System Development (ESP32 + Node-RED + Orange Pi + MQTT + SQLite) --- Project Description: I am looking for an experienced developer to build and complete an industrial OEE (Overall Equipment Effectiveness) monitoring system based on my existing architecture. The system is already partially designed, and the web dashboard is already available. The main task is to complete the data acquisition, processing, and integration layers. This is an edge-based industrial system, not a simple web app. --- System Architecture Overview: Machine → ESP32 → Orange Pi → Node-RED → MQTT → Dashboard ↓ SQLite (historical data) ↓ Firebase (cloud sync) --- Scope of Work: 1. ESP32 Development - Read machine data via: - D...

...workflow. From there it should dive straight into Technical Specifications aimed squarely at fellow developers. Key areas that must be covered • User Registration & Authentication – flow diagrams, data models, recommended encryption/auth methods (JWT, OAuth2, etc.). • Booking & Payment Process – booking life-cycle, real-time fare calculation, third-party payment gateway integration, WebSocket or MQTT suggestions for live status updates. • Driver & Vehicle Management – driver onboarding, vehicle records, assignment logic, availability tracking. Technical depth Please outline recommended tech stack options (e.g., Node.js/Express or Django for the backend, React or Vue for the frontend, relational vs. NoSQL storage, Redis for qu...

I’m building a logistics aggregator whose core purpose is shipment tracking for individual consumers. The platform should let a user create a shipment record, watch its progress in real-time on a map, and receive automated notifications—email, SMS, or in-app—whenever the status changes. Each parcel must also maintain a detailed shipment hi...polling updates • Audit-ready shipment history view per parcel • Admin panel to manage carriers, users, and failed events • Source code in Git with installation instructions Acceptance criteria: every status change reflected on the front end within 30 seconds, notifications delivered consistently, and history logs immutable. If you have prior experience integrating carrier APIs, WebSockets, or MQTT for liv...

...are welcome). Every inference event should be written to a log (CSV or lightweight database) with a timestamp, the detected emotion, and its confidence. When the same negative emotion (sad, angry, fearful, disgust) is observed repeatedly over a configurable window, an alert must fire—initially an on-screen banner and a console message are enough, but leave hooks so I can later plug in email or MQTT notifications. For visibility, wrap the system in a small dashboard built with Streamlit or Flask. The dashboard should: • stream the annotated video, • show the latest emotion and confidence, • display a rolling chart or table of recent detections, and • expose simple sliders or text fields to adjust alert thresholds without restarting the app. Acce...

Project Summary We need a senior developer or small senior team to build a production-grade web platform connected to ESP32-based devices via secure MQTT. This is not a simple website, not a UI-only task, and not a beginner project. We already have product direction, completed firmware, PCB work in progress, UI screens, and a detailed functional specification. We now need strong execution. What Must Be Built • Customer web application: QR flow, guest checkout, login, wallet, top-up, pay-and-start, session success, transaction history, map, support, settings, legal pages. • Business / fleet system: company wallet, vehicle management, driver/vehicle sub-accounts, assigned budgets, fleet usage, exports. • Operator dashboard: location-scoped transactions, revenue based o...

I need a 5+ years experienced full time Odoo developer to build a dedicated Management System module from scratch. The standard Sales, Inventory and Accounting apps won’t cover the workflows I have in mind, so the MS mus...live meter integrations or advanced analytics. Acceptance criteria • Module installs without errors through Odoo’s Apps interface • Demo data loads and displays correctly in all views • Dashboard charts render in real time when new records are added • No warnings in the server log after a full test cycle If you have prior experience integrating solar, wind or grid devices through API, MQTT or Modbus, mention it—it will help us move faster once the core module is in place. Please share examples or links to your previ...

...high-speed vehicle movement. Image enhancement, motion-blur compensation, and clever data-augmentation strategies are all fair game as long as they translate into measurable accuracy gains after conversion to TensorRT or ONNX. Alongside model work, you will craft a robust video pipeline with OpenCV and Python that can pull RTSP feeds, batch or single-frame them sensibly, and expose clean JSON or MQTT outputs for the rest of our stack. Field issues do crop up, so part of the role is writing self-diagnostics and remote-update hooks to keep hundreds of Jetson boxes healthy without on-site visits. Deliverables • Trained and optimised ANPR + vehicle detection/classification models (TensorRT engine files) • Real-time Python pipeline code with clear configuration files ...

I need a set of production-ready data-processing rule chains built inside Thingsboard Professional Edition to turn raw energy meter telemetry into a clean, timestamp-aligned kWh delta that my dashboards can consume. The flow I have in mind is straightforward: incoming readings arrive through MQTT, the rule chain pulls the previous value, calculates the delta in kWh, discards spurious negatives, then writes the result back to the correct asset’s timeseries and to a daily aggregation node. Once that pipeline is solid I can build my own widgets, so your focus is strictly on the rule-chain logic, node configuration and clear documentation. I can make available: - Metric names from devices - Live overview of our Thingsboard Instance and what we want via Teams or Zoom. Delivera...

...Docker & Kubernetes * Experience in supporting containerized applications * Strong troubleshooting and incident management skills * Ability to handle critical production issues independently * Comfortable working in weekend or shift-based roles Good to Have: * Experience with MQTT * Exposure to monitoring and logging tools Project Details: * Work Mode: Remote * Start: Immediate joiners preferred * Engagement: Hourly (Weekend-based) To Apply, please share: * Updated Resume * Total Experience * Experience with MQTT / Docker / Kubernetes * Current Location * Availability to start Serious applicants only. Candidates available for immediate weekend support will be preferred....

I’m building out a new Inductive Automation Ignition project and need an experienced hand focused on the SCADA side—specifically the HMI / visualization layer. The core platform is already licensed a...panel PC. – A short hand-off session with me walking through every template and script. - Python/Scripting: Ignition uses Jython (Python for Java). They should be able to write custom scripts for complex logic that built-in tools can't handle - PLC/Industrial Knowledge: Must understand how to read tags from a PLC (Allen-Bradley, Siemens, etc.) and understand industrial protocols like OPC UA and MQTT. - Core Certified, Gold preferred - Database Specialist If you’re fluent in Ignition, OPC UA, and have a strong eye for UI clarity, let’s talk&mda...

...a Pi; the exact mix of sensors is still open, so I’m happy to take your advice on whether a temperature probe, PIR motion unit, camera module—or any other component you like working with—best suits a first release. Here’s what I need from you: • Hardware guidance: pinout schematics and a clear parts list compatible with the Pi I already own. • Software stack: Python-based acquisition scripts, MQTT (or similar) publishing, and a lightweight dashboard—Grafana, Node-RED or any interface you prefer—as long as I can see live values in a browser. • Deployment help: step-by-step setup instructions so I can replicate the build on another SD card without soldering tweaks. • A short demo video or screenshots proving the data ap...

...compressor monitoring Display real-time data: Pressure Temperature Power consumption (from PZEM-004T) Historical data visualization (graphs, trends) Alerts & notifications (threshold-based) Device status monitoring (online/offline) Clean, professional UI (desktop + mobile responsive) Tech Requirements (Must Have): Frontend: React.js / (preferred) Backend: Node.js or Python Experience with MQTT / Modbus / REST APIs Real-time data handling (WebSockets or similar) Experience with Grafana / ThingsBoard / Node-RED dashboards is a BIG plus Nice to Have: Experience in IoT / industrial automation projects Familiarity with sensors, gateways, or edge devices Basic understanding of predictive maintenance Deliverables: Fully functional dashboard (MVP) Clean UI with graphs and aler...

...that follows the Healthypi-5 approach yet extends it for my medical research needs. In addition to heart-rate, SpO₂ and full-lead ECG capture, the device must record body temperature plus height and weight using the VL53L8CX ToF sensor and an HX711 load-cell interface respectively. All signals should stream in real time to an end-to-end IoT stack so I can review them from anywhere—think secure MQTT or HTTPS up to a lightweight cloud service, then a responsive dashboard or mobile view for live and historical plots. Key expectations • Hardware: complete schematic and PCB layout for the main board, daughterboards for the VL53L8CX and HX711 if required, and a parts list that sticks to widely available components. • Firmware: clean, well-commented code that han...

...mobile companion app or web dashboard where parents can view play sessions, receive basic alerts, and tweak settings. If you have better component or architecture suggestions, I’m open to them—what matters is reliability, low latency, and child safety compliance (EN 71, FCC/CE, etc.). Deliverables 1. Schematics, BOM, and PCB layout for the mat’s electronics. 2. Firmware with documented APIs (MQTT/REST preferred). 3. A demo mobile or web interface showcasing live data and simple alerts. 4. Assembly and testing instructions so I can reproduce the prototype locally. Acceptance Criteria • Mat streams sensor data continuously for at least 6 hours on one charge. • Latency from event to app display under 500 ms. • All code builds and runs ...

...charging station locator. Admin Dashboard (Web): Fleet management, real-time battery health monitoring, surge pricing control, and Nigerian tax/compliance reporting. Core Technical Requirements: Tech Stack: Preference for Flutter or React Native (Frontend) and Node.js/TypeScript or Go (Backend). Database: PostgreSQL with PostGIS for advanced geospatial queries. Real-time Engine: or MQTT for sub-second GPS and battery updates. The "EV Logic": Implementation of a dispatch algorithm that filters drivers based on Trip_Distance + Buffer < Current_Battery_Range. Payments: Integration with Paystack and Flutterwave (must support NGN "Pay with Transfer" flow). Mapping: Mapbox or Google Maps API (optimized for high-traffic environments like Lagos). Key Diffe...

...Queclink, or generic trackers using TCP/UDP protocols). 5. App Store Deployment: Handling the entire process of publishing the apps on the Apple App Store and Google Play Store. Required Technical Skills & Expertise: · Backend Development: · Proficiency in Node.js (JavaScript/TypeScript), Python (Django/FastAPI), or PHP (Laravel). · Strong experience with real-time data communication (WebSockets, MQTT, or raw TCP/UDP socket programming). · Database management (PostgreSQL with PostGIS for geospatial data, MySQL, or MongoDB). Experience with time-series databases (like InfluxDB) is a plus. · Frontend Development (Web Panel): · Experience with modern frameworks like React.js or Vue.js. · Must-have: Integration of mappi...

...telematics partners. Your job is to turn that groundwork into a production-ready web application: design the architecture, pick the tech stack you’re most productive with, write clean code, and set up CI/CD so deployments stay painless. If you’re comfortable mentoring a small in-house team as we scale, that’s an extra win. Tech highlights I expect to see • Real-time data streaming (, SignalR, MQTT, or a similar approach) • Solid mapping/geo-services experience (Google Maps, OpenLayers, Mapbox, etc.) • RESTful and/or GraphQL APIs with token-based security • Scalable database design (PostgreSQL with PostGIS, MongoDB, or equivalent) Acceptance criteria 1. A running web MVP deployable on a clean cloud instance. 2. Shipments update l...

...open-source software on mini-PCs/servers running Ubuntu Server OS or KVM Linux. - OS & VM Management: Enable remote login and ensure comprehensive OS management and Virtual Machine management directly through the Cockpit interface. - Hardware Control: Enable the inspection and updating of UEFI/BIOS settings via Cockpit. - UI Migration & Customization: Extract existing configuration pages for ESPA, Modbus, MQTT, and ixarma connections from our legacy Chipnet 3 app and implement them as custom menu items/pages within Cockpit. - Serial Port/Hardware Mapping: Map physical ESPA sockets (connected via serial ports) to the new Cockpit UI, allowing unique configurations to be saved for each incoming serial port. - Port Management: Identify and reserve specific network ports requi...

...the VPS to store logs, status data, and configuration profiles. • My own custom software (Python-based with a small C++ module) uploaded, installed, and kept version-controlled so I can roll out incremental updates to each robot. You are free to choose the exact Linux distro, web framework, and database engine, as long as the final setup is stable and clearly documented. Experience with ROS, MQTT, or similar robotics middleware will be helpful because the robots will ping the VPS through those protocols. Deliverables I expect: • Fully operational VPS with database running and reachable over a secure port. • Custom software deployed, started as a managed service, and hooked into a simple update pipeline I can trigger. • Step-by-step documentation or a...

...expectations • Live status tiles that change colour or flag alerts the moment a parameter moves out of range. • Trend charts and simple filters so I can compare yesterday’s shift to today’s at a glance. • A clean, responsive UI that runs in any modern browser and scales down gracefully on tablets mounted beside each line. • Backend connectors that can pull or receive data from our current gateways (MQTT or OPC-UA are both available; use whichever you’re most comfortable with). • Lightweight user management—just admin and operator roles—for view-only access. Deliverables 1. Source code and build instructions for both frontend and backend. 2. A running demo on your host so I can click through before hand-off. ...

I need a simple but polished iOS application, built as quickly as you can manage, that connects to a pre-configured MQTT server, listens to user-selected topics, and turns any incoming text message into a push notification. Every message should also be written to a local event log that can be reviewed later. Core workflow • At launch the app checks the broker and shows a clear status badge (connected / disconnected) on the main screen, along with basic counts for active alarms and stored logs. • From a configuration screen I can edit broker details (host, port, username, password, TLS on/off). • A separate subscription screen lets me add or remove topics on the fly. • A log viewer lists all received messages with timestamp and topic; tapping an entry ope...

...Queclink, or generic trackers using TCP/UDP protocols). 5. App Store Deployment: Handling the entire process of publishing the apps on the Apple App Store and Google Play Store. Required Technical Skills & Expertise: · Backend Development: · Proficiency in Node.js (JavaScript/TypeScript), Python (Django/FastAPI), or PHP (Laravel). · Strong experience with real-time data communication (WebSockets, MQTT, or raw TCP/UDP socket programming). · Database management (PostgreSQL with PostGIS for geospatial data, MySQL, or MongoDB). Experience with time-series databases (like InfluxDB) is a plus. · Frontend Development (Web Panel): · Experience with modern frameworks like React.js or Vue.js. · Must-have: Integration of mappi...

...equipment in the sense of keeping an eye on its live performance data from anywhere. The machinery is already fitted with basic IoT-ready sensors; what is missing is the cloud-to-device bridge and a clean user interface where I can watch throughput, temperature, and fault codes in real time. Here is the flow I have in mind: • Edge device pushes sensor readings via cellular data to a secure backend (MQTT or HTTPS—use what you are most comfortable with). • Backend stores, normalises, and exposes that data through an API. • A web or mobile dashboard pulls the feed and displays key performance metrics with alerts when values drift outside preset thresholds. That monitoring dashboard is the first milestone and the only compulsory feature right now. Being ab...

...model that can detect and recognise multiple faces in the same frame, then immediately tag each recognised person with a timestamp. All inference happens locally; only the processed results travel to the cloud, never the raw video. Model size, frame rate and power draw have to suit a typical Pi 4 with a standard camera module. Connectivity & data flow The Pi should expose a small, secure REST or MQTT service that pushes attendance events to the cloud and retries automatically if connectivity drops. A simple enrolment script should let me add new faces directly on the Pi or via an API call. Cloud side The frontend will live on my preferred cloud stack (a basic React or Vue single-page app is fine) and must focus on a clean Attendance Records view: searchable, filterable ...