MQTT Jobs

Necesito desarrollar una aplicación móvil de monitoreo IoT que funcione de forma nativa tanto en iOS como en Android. La solución debe conectarse con mis dispositivos mediante API REST/MQTT y ofrecer tres pilares funcionales clave: • Alertas en tiempo real: notificaciones push instantáneas ante eventos críticos (por ejemplo valores fuera de rango o pérdida de conexión). • Control remoto de dispositivos: encendido, apagado y ajustes de parámetros directamente desde el teléfono, con confirmación de estado. • Informes y análisis de datos: panel histórico con gráficas, exportación a CSV / PDF y métricas comparativas que puedan filtrarse por fecha y dispositivo. Entrego ...

I need a sleek, mobile-first interface that hooks into my smart-home ecosystem and streams each device’s status the moment it changes. The back-end APIs are already in place (REST with optional MQTT for push), so your task is purely the front end: design, build, and wire up a responsive dashboard that can poll or subscribe for updates and paint them on screen without perceptible lag. Core requirements • Mobile optimisation is mandatory; the UI must feel native on both iOS and Android, whether you choose React Native, Flutter, or another cross-platform approach. • Real-time monitoring is the single focus—lights, thermostats, locks, and sensors should update instantly, with clear visual cues of values • Clean, modern visuals that suit a consumer smart-home ...

I am putting together a small IoT system centred on an ESP32 that only has to watch a single magnetic contact sensor (door/window style) and report its state instantly. The moment the sensor changes, I want a real-time alert pushed to the user—no daily digests and no threshold logic, just an immediate notification. What I need built is the complete path from sensor to screen: • Firmware for the ESP32 that reads the magnetic switch, connects to Wi-Fi, and publishes each state change reliably. • A lightweight broker or backend (MQTT, Firebase, or similar) to shuttle the message. • A simple mobile or web app that shows the current sensor status and fires off the push notification in under one second. • A concise README with flashing, deployment, and test inst...

Prototype Development Using Node-RED, MQTT, and Frigate We are looking for a freelance developer with strong experience in Node-RED, MQTT, Frigate NVR, and video system integration to build a functional prototype that combines video streams, simulated event messages, and correlation logic. Responsibilities • Install and configure: • Mosquitto MQTT • Node-RED • PostgreSQL • Frigate for video management and recording • Develop a correlation engine in Node-RED capable of: • receiving simulated HTTP calls, • handling and storing process states, • processing simulated MQTT messages, • generating final metadata, • storing results in a database, • linking metadata to recorded video clips via Frigate API. • Create a t...

I’m building a consumer-friendly home-automation product that focuses on two core features: smart security and climate control. Connectivity will be entirely Wi-Fi, so every module—whether it’s a door sensor, thermostat interface, or companion mobile app—must communicate reliably over standard 2.4 GHz networks without proprietary hubs. Here’s what I need from you: • Hardware design and rapid-prototype advice for low-power Wi-Fi nodes (ESP32, RTL8710, or similar). • Embedded firmware that pairs securely, supports OTA updates, and exposes REST/MQTT endpoints for security events and HVAC commands. • A lightweight cloud back end (AWS IoT Core, Firebase, or what you recommend) to aggregate data, push notifications, and enforce user roles. &...

I’m working on a college project that detects when a boarding-house door opens or closes with an HC-SR04 ultrasonic sensor driven by an Arduino-compatible ESP32. I need a complete, ready-to-run package: schematic, wiring diagram, and clean, well-commented code that compiles in the Arduino IDE (or PlatformIO if you prefer). The system must push data to the web so I can monitor it remotely and add more sensors later without rewriting everything. Web side I haven’t decided whether to host a custom site or ride on an existing platform, so I’d like your guidance. I’m comfortable with MQTT as the transport, but I’m open to your advice on whether to wrap that with ThingsBoard, Node-RED, or another lightweight stack. Whatever we choose, the web interface must show ...