02Service
IoT & Embedded Systems
Embedded work is where a connected project succeeds or quietly fails. We write firmware for devices that have to run unattended for months — on unreliable power, over patchy cellular links, in environments that are hot, dusty, and vibrating.
What this includes
Embedded firmware
Bare-metal and RTOS firmware for STM32 and ESP32 targets, with a bias toward deterministic behaviour and recoverable failure modes.
Cellular IoT connectivity
LTE module integration (EC200U and similar) over AT commands, with MQTT transport, store-and-forward buffering, and reconnect logic that survives real network conditions.
GPS & telemetry
Fleet and asset tracking built on Teltonika FMB-series and comparable hardware, including custom decoding and back-end ingestion.
Sensor integration
Real-time acquisition across analogue and digital sensors, plus LoRa multi-hop relay networks for sites where cellular coverage does not reach.