IoT · Real-time industrial monitoring · 2023 — Present
Eleconar IoT
Real-time industrial IoT platform with MQTT and custom microcontrollers.
- Role
- Embedded & Full Stack Developer
- Period
- Feb 2023 — Present
The project
Eleconar is an industrial equipment company. The platform we built monitors plant devices in real time: sensor readings, machine status, alarms and remote commands. It’s the project where my two worlds meet — electronics (sensors, microcontrollers, PLCs, Modbus) and modern software (Next.js, NestJS, MQTT, Redis).
Communication architecture
Plant devices publish readings and events over MQTT with QoS tuned per message type (telemetry at 0, critical commands at 2). The NestJS backend subscribes to the relevant topics, normalizes, persists historical data in PostgreSQL and keeps a hot state in Redis to serve the live view without hitting the DB on every request.
Frontend
Next.js consumes the state via WebSockets to show operators dashboards with live readings, navigable history and alerts. The UI is optimized for industrial screens — high contrast, big numbers, keyboard navigation.
Firmware
Custom microcontroller programming in C/C++: analog/digital sensor reads, watchdog, I/O handling, Wi-Fi/Ethernet connectivity and MQTT publishing. For legacy gear we integrated Modbus communication with already-installed PLCs, avoiding replacement of working hardware.
Screenshots
Product screenshots in preparation. Due to industrial-client confidentiality, public images will be shared under prior agreement.
Why it’s different
Most full-stack devs have never touched an oscilloscope. I started there. When a device fails to respond I know whether it’s firmware, protocol, network or backend. That cross-domain hardware–software mastery is what makes this project possible.