Mqtt trabalhos

...O presente projeto consiste no desenvolvimento de um Sistema Inteligente de Deteção e Mitigação de Fugas de Água baseado na Internet das Coisas (IoT). O sistema foi concebido com uma arquitetura de três camadas (Hardware, Backend e Aplicações Cliente) para garantir escalabilidade, segurança e monitorização em tempo real. A comunicação é estabelecida através de um protocolo de mensagens leve, o MQTT (Message Queuing Telemetry Transport), que permite a comunicação eficiente entre o microcontrolador e o servidor central. 2. Camada de Hardware: O Microcontrolador ESP32 O núcleo do sistema de deteção é o microcontrolador ESP32 Dev Kit C V...

...Tuya, Sonoff e ESP32 já integrados e controláveis via MQTT O que falta concluir: 1. Finalização da Skill Alexa Revisar e finalizar as respostas da Lambda para todos os handlers (Discovery, PowerController, RangeController, SceneController, etc.) Ajustar a comunicação bidirecional entre Lambda ↔ MQTT Broker (EMQX) Preparar e validar a publicação oficial na Alexa Skill Store 2. Camada PHP para Gestão de Dispositivos Implementar no backend PHP um sistema de cadastro e controle de dispositivos integrados ao MQTT: Cadastrar, editar e excluir dispositivos ESP32 Definir nomes das saídas (GPIOs) de cada dispositivo, que serão os nomes exibidos na Alexa Permitir renomear saídas manualm...

Preciso de um programador para gerenciar uma API que recebe dados de sensores via MODBUS RTU, converta os dados em MQTT e apresente na API em nuvem.

Quero testar um broker local – Mosquitto Para isso preciso de um programa que permita que eu simule a quantidade de dispositivos e permita definir a frequência de publicações MQTT. Exemplo: 100, 200, 300, 500 ou mais dispositivos publicando... E que também possa definir o número de Subscriber que irão receber as Publicações. O importante é que o programa faça o descrito acima. pode ser em qualquer linguagem.

O projeto geral baseia-se em dashboards com informações de equipamentos, processos, etc de linha de produção industrial. Esta parte da demanda anunciada tem a ver com a programação de dispositivos ESP32 para fazer coleta de sensores de pressão, vazão, contato seco para contagem de itens processados, etc. Desejável conhecimento em ESP32/Arduino. Codigo deve testar se dispositivo...linha de produção industrial. Esta parte da demanda anunciada tem a ver com a programação de dispositivos ESP32 para fazer coleta de sensores de pressão, vazão, contato seco para contagem de itens processados, etc. Desejável conhecimento em ESP32/Arduino. Codigo deve testar se dispositivo est&aacut...

Quero um projeto para receber dados da Coulomb meter e imprimir no display nextion e enviar via WIFI para o firebase ou MQTT

Hi João Pedro P., I noticed your profile and would like to offer you my project. We can discuss any details over chat. Nós temos um projecto com um Raspberry pi e um Arduino conectados a relays e sensores e a serem controlados pelo Node Red. O que nós gostaríamos era de fazer a adição de um shelly dimmer e com MQTT conseguir junta-lo a nossa aplicação. Gostavamos de explicar melhor e temos outros trabalhos. Trabalhos com hidroponia e agricultura vertical. Obrigado pela atenção,

1 - Desenvolver código fonte na IDE do Arduino. 2 - comunicação MQTT . 3 - interface web para configuração (endereço ip do broker MQTT, porta, tópico, rede WIFI, ip estatico ou dhcp , nome do host, atualiza de firmware OTA ) e apresentação de medição em tela. 4- Desenvolver esquemático e PCB no KICAD ou ISIS Proteus 5 - projeto do circuito usando ADE 7758 e ESP32 6 - Comprovar o funcionamento do código fonte na pratica. 7 - Tirar duvidas sobre o funcionamento do código e esquemático ligações e conexões. 8 - Ler registros como, tensão, corrente elétrica, frequência, potência ativa, reativa e aparente, fator de potencia (trif&aa...

Olá Hafiz Ahsan R., eu notei seu perfil e gostaria de lhe oferecer meu projeto. Preciso de um projeto de um monitoramento de tensão e corrente. Desenvolver código fonte na IDE do arduino. interface web para configuração (endereço ip do broker MQTT, porta, tópico, rede wifi, ip estatico ou dhcp , nome do host, atualiza de firmware OTA ) e apresentação de medição em tela. Desenvolver esquemático e ISIS Proteus Projeto do circuito usando ADE 7758, ESP32 e sensor de corrente efeito HALL HSTS016L

Preciso alguém com conhecimento IOT, ESP8266, Tasmota, MQTT, Home assistant, etc

1 - Desenvolver código fonte na IDE do arduino. 2 - comunicação MQTT . 3 - interface web para configuração (endereço ip do broker MQTT, porta, tópico, rede wifi, ip estatico ou dhcp , nome do host, atualiza de firmware OTA ) e apresentação de medição em tela. 4- Desenvolver esquemático e PCB no KICAD ou ISIS Proteus 5 - projeto do circuito usando ADE 7758 e ESP32 6 - Comprovar o funcionamento do código fonte na pratica. 7 - Tirar duvidas sobre o funcionamento do código e esquemático ligações e conexões. 8 - Ler registrados como, tensão, corrente elétrica, frequência, potência ativa, reativa e aparente, fator de potencia (tr...

Preciso do projeto de um medidor de energia com o ic ADE7758 trifásico com ESP32 MQTT (esquema elétrico,PCB, arquivo gerber e source code), com interface web de configuração de rede e calibração da medição.

Desenvolvimento de um hardware IoT, envolvendo Raspberry, com requisito de sinais de monitoramento de máquina, bufferização em perda de conectividade, dentre outros requisitos, fazendo interface via MQTT para broker na nuvem. O escopo necessário é de exclusivamente desenvolvimento da programação e concepção do hardware.

Desenvolvimento de uma solução em IoT com rede mesh baseada em placas ESP32 e ESP8266 com sensores ligados às placas. Utilizará como método de comunicação entre os pontos, a infraestrutura de rede Mesh, tendo como ponto de concentração uma placa ESP32 como Gatway WI-FI (300 disposit...ESP32 e ESP8266 com sensores ligados às placas. Utilizará como método de comunicação entre os pontos, a infraestrutura de rede Mesh, tendo como ponto de concentração uma placa ESP32 como Gatway WI-FI (300 dispositivos organizados automaticamente). O Gatway replicará os dados captados pelos pontos enviando-os a um servidor MQTT próprio que deverá ser instalado em m&aacut...

Descrição do projeto: 1- Instalar ThigsBoard em um sistema operacional Ubuntu. 2- Instalar sservidor MQTT (Mosquitto) 3- Instalar quaisquer outros programas, como: plataformas, protocolos, etc, que seja necessário para o funcionamento da plataforma ThigsBoard. 4- Criar um arquivo (um manual de instalação) que descreva tudo que foi instalado. Descrever as etapas de instalação (de todas as partes instaladas) de forma que se entenda exatamente o que foi realizado. Deve ser criado no formato word ou pdf. 5- Fazer teste de funcionamento utilizando "Pushing com MQTT" e "Subscribe com MQTT", as informações de recebimento/envio "Pushing" e "Subscribe", serão forn...

Temos um projeto para monitoramento de sensores , porta , temperatura e gás. Estamos precisando de um profissional para validar a programação e trafego de dados . Por exemplo , a placa manda para uma fila Mqtt na nuvem . O serviço busca na fila e manda para nosso software.

Modulo de configuração de rede e camada mesh no ESP8266 Conexão entre varios ESP8266, transferencia de dados via MQTT De preferencia em linguagem C ou Python

...desenvolvido com o Framework Ionic onde este app utilizará o Firebase como base de dados. O app precisa de uma tela de login (facebook e email) onde após o login existirá uma tela com a listagem dos itens encontrados no banco que geram conteúdo para o MQTT conforme o vinculo entre o usuário logado e seus dispositivos cadastrados no banco. Preciso de uma tela com um leitor de QR Code que será responsável por ler um código e vincular o usuário logado com o código lido. Sendo assim, na tela em que sao mostrados os dispositivos que o usuário pode monitorar (MQTT) isto deve ser feito automaticamente, o app vai ler o banco de dados e alimentar o ListView para o usuário. No momento em que o ...

.../>- Experência em Node.js e <br />- Experência com desenvovimento front-end (Angular.js, HTML5, CSS3, JavaScript, JQuery, Bootstrap)<br />- Experiência em NoSQL. MongoDB, Redis entre outros<br />- Experiencia com messageria(RabbitMQ ou outros)<br />- Experiência com desenvolvimento hibrido(Cordova, PhoneGap ou Xamarin)<br />- Experiencia com Georreferenciamento <br />- Conhecimentos com MQTT<br />- Conhecimentos com Sass, Less, Bower, Grunt<br />- Experiência com Metodologias ágeis(Scrum,Lean,XP)<br />- Conhecimentos em BigData<br />- Configuração de Arquitetura escalável de servidores da AWS ou semelhante<br />- Ter prática com testes automat...

.../>- Experência em Node.js e <br />- Experência com desenvovimento front-end (Angular.js, HTML5, CSS3, JavaScript, JQuery, Bootstrap)<br />- Experiência em NoSQL. MongoDB, Redis entre outros<br />- Experiencia com messageria(RabbitMQ ou outros)<br />- Experiência com desenvolvimento hibrido(Cordova, PhoneGap ou Xamarin)<br />- Experiencia com Georreferenciamento <br />- Conhecimentos com MQTT<br />- Conhecimentos com Sass, Less, Bower, Grunt<br />- Experiência com Metodologias ágeis(Scrum,Lean,XP)<br />- Conhecimentos em BigData<br />- Configuração de Arquitetura escalável de servidores da AWS ou semelhante<br />- Ter prática com testes automat...

.../>- Experência em Node.js e <br />- Experência com desenvovimento front-end (Angular.js, HTML5, CSS3, JavaScript, JQuery, Bootstrap)<br />- Experiência em NoSQL. MongoDB, Redis entre outros<br />- Experiencia com messageria(RabbitMQ ou outros)<br />- Experiência com desenvolvimento hibrido(Cordova, PhoneGap ou Xamarin)<br />- Experiencia com Georreferenciamento <br />- Conhecimentos com MQTT<br />- Conhecimentos com Sass, Less, Bower, Grunt<br />- Experiência com Metodologias ágeis(Scrum,Lean,XP)<br />- Conhecimentos em BigData<br />- Configuração de Arquitetura escalável de servidores da AWS ou semelhante<br />- Ter prática com testes automat...

Desenvolvedor Senior. Graduação Completa ou em fase de conclusão de concurso de Engenharia Mecatrônica/ Robótica. Expertise: Node.js - - MongoDB - MQTT - Cordova. Desenvolvimento em C é fundamental. 

php 5.6, nginx, mysql, acesso sudo ssh, npm e composer, além de MQTT e

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) • ...

...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...

...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...

...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....

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...

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...

...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...

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...

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