Mqtt jobs

...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....

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.

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...

... 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....

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...

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 &...

...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...

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...

...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 ...

...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....

...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...

...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...

...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...

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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...

...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...

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...

...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...

...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...

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...

...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...

Just Client connect with MQTT Broker

...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 ...

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...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 ...

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

...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 ...

...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...

...theme without touching source. Reporting is a big piece. Manual CSV/PDF exports are fine, but the system also has to fire off daily, weekly, and monthly summaries automatically. Those reports, along with alert notifications, must reach users by both e-mail and SMS. Because the platform will eventually speak to other in-house systems, please keep ThingsBoard’s API layer and common IoT protocols (MQTT, HTTP, CoAP, Modbus, OPC-UA, etc.) ready for straightforward integration. Deliverables • A working ThingsBoard CE instance on our Windows. • Role-based access control for Super admin / Admin / Local user. • Theming panel visible only to Super admin. • Automated and manual report generation (daily, weekly, monthly) with e-mail & SMS notifications....

Setup of High-Performance GPS Tracking Backend (VPS + MQTT) Objective: Configure a VPS to act as a dedicated GPS tracking engine. It must ingest data via EMQX (MQTT), process it using Traccar (for drift filtering and mileage), and expose a secure API for the main website (hosted on ) to consume. Architecture Overview Ingestion: Trackers publish to EMQX (MQTT Broker). Middleware: A custom Bridge Script (Node.js/Python) subscribes to EMQX and forwards data to Traccar. Processing: Traccar (running "headless") handles protocol decoding, geofencing, and mileage calculation (filtering GPS drift). Storage: PostgreSQL stores the high-frequency GPS history locally on the VPS. Integration: Your Website () calls the Traccar API (via Nginx Reverse Proxy) to fetch ve...

...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...

...to the existing dashboard and backend Write and maintain APIs for new features and integrations Optimize performance, logging, and error handling Work with our hardware and product team to replicate field issues Support version updates and small releases Maintain documentation for changes and deployments Required Skills Strong experience in IoT backend development API development (REST / MQTT familiarity required) Experience with databases used in IoT dashboards (SQL/NoSQL) Understanding of device communication, telemetry and data pipelines Debugging experience in production systems Ability to work independently and communicate clearly Good to Have Experience with ESP32/STM32 or similar controllers Familiarity with AWS IoT / Azure IoT / Firebase or equivalent Basi...

...loop monitors the output voltage and current. If the load increases and the voltage drops, the STM32 adjusts the PWM duty cycle in real-time to maintain a constant 230V/110V AC. ​4. "Smart" Features ​By integrating a communication module, your project moves beyond a standard inverter: ​Remote Monitoring: Send real-time data (Battery level, Solar yield, Load) to a mobile app or dashboard (Blynk or MQTT). ​Data Logging: Save energy production stats to an SD card or cloud. ​Protections: Implement software-defined over-voltage, under-voltage, and short-circuit protection that sends an alert to your phone. ​5. Technical Challenges to Consider ​Dead-Time Insertion: Crucial to prevent "shoot-through" (where both MOSFETs in a leg turn on at once, causing a short). S...

...updates, issue commands and generate audit logs. • Role-based access so help-desk staff see only what they need. Core Android agent • Silent enrolment via QR code, NFC or zero-touch. • Persistent device ownership so factory resets don’t break management. • Remote commands: wipe, lock, locate, push settings, install/uninstall apps. • Real-time telemetry streamed via secure WebSocket or MQTT. Security & network • All traffic between agent and server must be TLS 1.3. • Code should be signed; tamper attempts reported instantly. • Comply with Google Play Protect policies. Deliverables 1. Source code for server, Android agent and web UI. 2. Deployment scripts (Docker or Kubernetes). 3. Technical documentation an...

...operating system (Ubuntu LTS preferred) - Install and configure Docker and Docker Compose - Apply basic security hardening (SSH key access only, firewall rules, TLS for web access) - Ensure the setup is provider-agnostic and portable to other cloud providers or a local Linux server Data ingestion from The Things Network (TTN) - Configure a reliable data flow from TTN using MQTT (preferred) or TTN Webhooks - Deploy and configure an MQTT consumer (e.g. Telegraf) on the VPS - Secure and maintainable configuration (credentials, certificates, separation of concerns) - Clear separation between ingestion, storage, and visualization components Time-series data storage - Deploy and configure InfluxDB (self-hosted) as the time-series database - Design a clean measurement and tag s...

...local server / LAN usage Professional industrial look Web and WPF only consume APIs. They must not access database directly. 3. Scope of Work (Very Clear) Included (Your Scope) UI / UX design Dashboard screens Charts & graphs Tables & filters Login screens (UI only) API integration (GET requests only) Clean, professional industrial theme NOT Included Hardware communication Modbus / MQTT / protocols Database design or queries Data calculations (kWh, PF, TOD, etc.) Alarm logic or business rules All values shown in UI are already computed by backend. 4. Data Flow (For Understanding Only) Hardware → Server → Database → API → Your UI (Web / WPF) API response time: 1–5 seconds Real-time animation not required Refresh based dashbo...

...scikit-learn, or another lightweight embedded framework, provided training remains reproducible and inference can run on a modest ARM-based gateway. I will supply device firmware specs, traffic logs, and a full test sandbox once we get started. Deliverables • Trained model with documented architecture • Inference script or compiled module ready to embed on the IoT gateway (≤ 256 MB RAM) • REST or MQTT interface compatible with the Android app • Setup guide covering data prep, training pipeline, and deployment steps • Brief report on detection accuracy and false-positive rate Acceptance criteria The model must detect at least 95 % of hostile packets in our sample set while keeping false positives below 3 %, and it must load and run on the ...

...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...

...Your tasks cover the complete path from schematic capture through firmware and field testing. On the hardware side that means selecting components, drawing the schematic, laying out a compact PCB, and producing a clean BOM ready for ordering. Firmware must run on the ESP32 (Arduino or ESP-IDF is fine) and handle sensor polling, secure storage of readings, time-stamped uploads to a REST endpoint or MQTT broker, and a simple web-served status page so I can verify operation without a separate app. Because the device focuses on data collection and reporting, there is no remote-control logic required. Robust error handling, Wi-Fi reconnection, and OTA update support are essential so I can maintain units in the field without physical access. Deliverables • Complete KiCad (or s...

...processing, while the ESP32 aggregates the results, pushes them to the cloud over MQTT, and serves a simple web dashboard. Core scope – Mixed-sensor support: the front-end must accept both analog and digital sensors. – Analog path: implement on-FPGA filtering before results reach the ESP32. – Digital path: straight-through capture with room for future logic extensions. – Two-layer PCB integrating the ESP32, FPGA and sensor interface components. – SPI-based hand-shake between the two chips. Key tasks • Design the sensor input circuitry and full schematic. • Write and verify VHDL/Verilog blocks for filtering, counters and basic event flags. • Develop ESP32 firmware (ESP-IDF or Arduino) for SPI control, MQTT publishin...

...on one problem: understanding and visualising every minute of downtime on our manufacturing machines. The system has to sit on a web server (self-hosted or cloud), collect run/stop signals in real time or through manual entry, let operators assign a reason code, and then convert that stream of events into clear OEE, MTTR, and loss-Pareto dashboards. Core workflow • Data capture – REST, OPC-UA, MQTT or CSV upload from each machine, with a fallback manual form for operators. • Downtime reason logging – configurable hierarchy of loss codes, mandatory before a machine can be restarted. • Analytics – live OEE gauges, shift/day/week reports, reason-code heat maps, export to CSV/Excel, and an API for BI tools. • User & asset management ...

...bare-metal and RTOS platforms including FreeRTOS. My debugging capabilities using JTAG, logic analyzers, and oscilloscopes ensure reliable and optimized system performance. I have strong experience in RF Mesh, Zigbee, BLE, and LPWAN connectivity along with robust understanding of hardware schematics for seamless HW+FW integration. I have also delivered secure cloud-connected device solutions leveraging MQTT, CoAP, and AMI communication stacks. AI-Driven Engineering Leadership I am actively leveraging AI-assisted engineering workflows to: ✓ Accelerate firmware design and debugging ✓ Improve documentation and knowledge retention ✓ Enhance architectural decision-making ✓ Automate testing and code reviews This has enabled faster release cycles, improved quality, and stronger prod...

...Foreground background service compliant with Android 11 limits * Integration with provided REST APIs (HTTPS) and MQTT endpoints * Secure device onboarding using API-provided credentials * Periodic heartbeat and telemetry reporting Functional Requirements: * Configurable sending telemetry to API interval * Collect device information such as network status (SIM, signal strength, data usage, WiFi) * Collect device health information (CPU, RAM, storage, battery) * Optional GPS reporting (policy controlled, can be disabled) * WiFi hotspot (SoftAP) control and monitoring * Mobile network monitoring (signal strength, operator info) Security: * All communication over encrypted channels (HTTPS, MQTT) OTA Update Requirements: * Custom OTA update flow for the app * Checksum an...

...provide: • The hardware (ESP32, energy-meter IC, power supply) • Wi-Fi credentials for bench testing • Access to a fresh Google Cloud project What I need back: • Fully commented ESP32 firmware (Arduino or ESP-IDF) that captures Voltage, Current and Power-consumption values from the IC and publishes them to Google Cloud • Cloud configuration scripts or step-by-step notes so I can recreate the MQTT topic, database or storage bucket, and a quick way to verify incoming data (e.g., simple Cloud Function that echoes payloads to the log) • A brief README that covers build instructions, required libraries, and how to flash and monitor the device Once I confirm live data streaming for at least 24 hours without drops, the job is complete and I&rs...

...access the system to remotely read, write, erase, and manage EEPROM data, as well as download EEPROM-specific modules into the IoT device. -> Key Responsibilities Auth (JWT / Firebase) Secure communication (MQTT / REST / WebSockets) Device pairing + Wi-Fi provisioning EEPROM operations UI Hex/ASCII viewer Module library & downloads Logs, alerts, real-time status Clean UI/UX Testing + documentation ->Required Skills Strong experience in Android development (Java/Kotlin) Experience with authentication systems (JWT / Firebase Auth / custom APIs) Experience with REST APIs / MQTT / HTTP / WebSockets Knowledge of IoT-based mobile applications Understanding of Wi-Fi communication & real-time data handling Familiarity with secure data transmission &am...

...integrate three additional pillars: • Live camera feeds that stream alongside the moving asset. • Fuel-level monitoring with alert thresholds and consumption reports. • Driver-behaviour analytics for harsh braking, rapid acceleration and speeding. You’ll be enhancing, refactoring and testing what is already in place. The current stack is Java/Spring Boot on the back end, React on the front, and MySQL; MQTT bridges the incoming telemetry. If you can improve performance or reliability with a different framework (.NET, Node, Kafka, etc.) I’m open to sensible recommendations. Testing is not a checkbox—unit, integration and on-road validation with an AIS-140 GPS device must all pass before sign-off. I’ll supply the hardware and SIM for the live...

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...implement a Python-based on-device application that communicates with a C# backend server using MQTT for configuration, status reporting, and control messaging. Development will include - Design and implement a Python agent application running on an embedded Linux device for applying configuration data and handling status and control messages - Design and implement a test / reference C# server that accepts config parameters via UI and pushes to device fleet over MQTT (with docker and/or Aspire) - Define message formats and workflows for: a) Device configuration, b) Status reporting, c) Control / command messages The initial milestone will focus on pushing device WiFi hotspot configuration data via MQTT and modifying cisco like config file, then restarting relevant...

...integration with other devices or systems over Bluetooth, Wi-Fi, or an open REST API so the data can be shared or acted on elsewhere. You’re free to propose the most suitable tech stack, but I expect a cross-platform solution (React Native, Flutter, or similar) plus a lightweight backend (Firebase, AWS Amplify, or another scalable option). Sensor data will arrive via standard protocols (BLE, MQTT, or HTTP), so experience with any of these is a plus. Acceptance criteria: 1. Mobile app installs and pairs with a demo sensor within minutes. 2. Live temperature feed updates with no noticeable lag. 3. Alerts trigger reliably at user-set thresholds and are logged. 4. Historical data can be viewed and exported. 5. API documentation supplied for third-party integrations....

...or similar), no other sensing is required. Once motion is detected the event should be timestamped, packaged and sent through the on-board Wi-Fi interface to a configurable endpoint on my LAN. Key points you will handle • Initialise and read the chosen motion sensor reliably. • Set up stable Wi-Fi connectivity on the ESP32-S3 (station mode, WPA2). • Publish each motion event to an HTTP or MQTT endpoint – I’m open to whichever you can implement fastest. • Keep the firmware lightweight; power-saving features such as deep-sleep after inactivity are a plus. Deliverables 1. Well-commented source code for the ESP32-S3 (ESP-IDF or Arduino-ESP32). 2. Pin-out and wiring diagram for the motion sensor. 3. Build & flash instructions that le...