c
carilmartinez

Ronnie M.

@carilmartinez

Embedded Firmware and PCB Engineer, ESP32, nRF52, STM32, KiCad

Ecuador
Spaans, Engels
Sommige informatie wordt in het Engels weergegeven.
Over mij
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.... Lees meer

Skills

c
carilmartinez
Ronnie M.
offline • 

Bekijk mijn diensten

Print circuit boards (PCB)
I will review your pcb design, schematic and layout before manufacturing
VanafUS$ 25 / projectMeer informatie
Print circuit boards (PCB)
I will do pcb design and schematic in kicad, ready for jlcpcb assembly
VanafUS$ 60 / projectMeer informatie

Portfolio

Werkervaring

Clervin

Electronics Laboratory Technician

Clervin • Parttime

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.

Escuela_Superior Politécnica del Litoral

Research Technician, Embedded Systems and IoT

Escuela Superior Politécnica del Litoral • Fulltime

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.

University_of Guayaquil

Pre-university Mathematics Instructor

University of Guayaquil • Parttime

Oct 2019 - Mar 2020 • 5 mos

Taught calculus and mathematics to incoming university students, strengthening their analytical skills and quantitative reasoning.