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Ronnie M.
@carilmartinez
Embedded Firmware and PCB Engineer, ESP32, nRF52, STM32, KiCad
Ecuador
Español, Inglés
Sobre mí
Electronics engineer with 8+ years building embedded prototypes in university R&D, now doing an MSc at Universidad de Sevilla. I design custom PCBs in KiCad and write the C/C++ firmware that runs on them (ESP32, nRF52/BLE, STM32, LoRa). Today I repair photovoltaic-inverter and industrial control boards at component level, so I design with real-world failures in mind: protection, power integrity and manufacturability. You get clean files ready for JLCPCB/PCBWay, clear documentation and fast written replies. Send me your schematic, board photos or code and I'll tell you what I'd check first.
Habilidades
Ronnie M.
desconectado •
Revisa mis servicios
Placas de circuito impreso (PCB)
I will review your pcb design, schematic and layout before manufacturing
Placas de circuito impreso (PCB)
I will do pcb design and schematic in kicad, ready for jlcpcb assembly
Porfolio
Experiencia laboral
Electronics Laboratory Technician
Clervin • Tiempo parcial
Jun 2026 - Present • 4 mos
Component-level diagnosis and repair of photovoltaic-inverter and industrial control boards: power stages, protection circuits, regulators and control electronics. Fault finding with in-circuit and ESR measurements, schematics traced in KiCad when no documentation exists, part identification and replacement of obsolete components.
Research Technician, Embedded Systems and IoT
Escuela Superior Politécnica del Litoral • Tiempo completo
Jun 2017 - Dec 2025 • 8 yrs 6 mos
End-to-end development of embedded prototypes for applied research projects: schematic, PCB layout, firmware, sensor integration and functional validation. - Firmware in C/C++ on ESP32, Nordic nRF52 and STM32, using FreeRTOS or Zephyr depending on the prototype. - Wireless and network integration: BLE, Bluetooth Mesh, LoRa, UWB, MQTT and TCP/IP for data acquisition and transmission. - Applications in telemedicine (wearables), smart buildings and indoor navigation. - Raspberry Pi computer-vision experiments with YOLOv8s and MiDaS. - Functional testing and design iterations to improve prototype robustness and performance. - Technical coordination with multidisciplinary teams and international partners in Belgium and Italy. - Author and co-author of 6 scientific publications.
Pre-university Mathematics Instructor
University of Guayaquil • Tiempo parcial
Oct 2019 - Mar 2020 • 5 mos
Taught calculus and mathematics to incoming university students, strengthening their analytical skills and quantitative reasoning.
