Senior embedded firmware consulting for mission-critical IoT and industrial products. Built with tested architecture, secure OTA, and documentation your team can own.
Open-source RTOS trusted by industry
GZM Embedded Systems is a Brazilian consultancy specialized in embedded firmware for products that cannot fail. We deliver custom end-to-end solutions for companies that need quality, reliability, and full control over their firmware.
We work across every phase of the development cycle in energy, automotive, industrial, IoT, and commercial automation sectors: architecture, implementation, automated testing, production line validation, and field support.
Firmware delivered end to end. From architecture decisions to field deployment, with tested code, secure updates, and documentation your team can maintain.
Clean firmware that survives team turnover. Modular design with Zephyr, NuttX, or FreeRTOS on STM32, ESP32, nRF52, RP2040, and RISC-V.
Deploy firmware updates without bricking devices. MCUboot with RSA/ECDSA signing, AES encryption, and recovery channels over CAN, RS-485, UART, or SD Card.
Protocol stacks that work in the field. CAN-FD, CANopen, J1939, Modbus, DNP3, MDB, ISO-TP, Zigbee, and LoRa integrated and tested against real equipment.
Touchscreen UIs your field teams can use. LVGL and TouchGFX on RGB (LTDC) and SPI displays, with VNC for remote diagnostics.
Understanding the problem before writing a single line. Risks mapped, interfaces defined, partitioning decided.
Modular firmware with automated testing and reviews. Incremental merges into a working device from week one.
Production-ready code plus training and documentation. Your team owns the codebase, not the consultant.
Development of a new embedded measurement system for fuel distribution loading terminals, with Ex (Explosive Atmospheres) certification for operation in classified areas. The system monitors flow rate and totalizes volume across two independent measurement lines, each with a dedicated HMI. A central controller coordinates actuators and alarms across the station.
Key features implemented:
Recorded talks, webinars, and articles on embedded firmware, RTOS, and system architecture. All delivered in Portuguese at Embarcados community events since 2020.
Our team develops your firmware project end to end. Quick email, all information kept confidential.
