y
yannaxu

Yanna Xu

@yannaxu
5.0(5)

Level 1

Project Management and Review, PCB, Power Electronics and Motor Drive, IOT

China
Chino, Inglés
Parte de la información aparece en idioma inglés.
Sobre mí
I am an embedded systems designer with 10+ years of experience in automotive and industrial products. I provide end-to-end development, from idea to working, reliable devices. I specialize in solving real-world issues: • Motor control and power electronics • Ultra-low-power design (µA level) • Noise / EMC problems • Debugging unstable SPI / I2C / CAN /LIN communication My work includes: • PCB design and hardware debugging • Firmware development (C / C++ / Python / Embedded Linux/ Qt) • MCUs: STM32, ESP32, nRF52 as well as Renesas, NXP and TI MCUs... Lee más

Habilidades

y
yannaxu
Yanna Xu
desconectado • 
Tiempo medio de respuesta: 2 horas

Revisa mis servicios

Placas de circuito impreso (PCB)
I will design, review, guide schematics, pcb, pcba, jlcpcb production, basic firmware
5.0(3)
DeUSD 50 / proyectoMás información
Sistemas integrados e IoT
I will design low power iot firmware with wifi, ble, lora, lcd by esp32, nrf52, stm32
5.0(2)
DeUSD 100 / proyectoMás información

5 Reseñas
5.0

(5)
(0)
(0)
(0)
(0)
Desglose de calificaciones
  • Nivel de comunicación del Freelancer
    5
  • Calidad de la entrega
    5
  • Valor de la entrega
    5
1-5 de 5 reseñas
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Más relevante
    O
    image-docs

    oleg_lucasevici

    Cliente recurrente

    MD

    Moldavia

    5

    Yanna Xu delivered an excellent PCB design and review service. Her communication was always clear and professional, making the entire process smooth and efficient. She completed the work on time and with great attention to detail. The PCB revision and report were exceptionally well prepared and demonstrated...

    USD100-USD200

    $

    3 días

    Tiempo

    gig

    Placas de circuito impreso (PCB)

    Útil?
    Sí
    No
    O
    image-docs

    oleg_lucasevici

    Cliente recurrente

    MD

    Moldavia

    5

    Working with Yanna Xu was an excellent experience. She is truly an expert in the firmware field and demonstrated outstanding technical skills throughout the project. Her code quality was exceptional — clean, well-structured, and highly maintainable. What impressed me most was how clearly she documented...

    USD50-USD100

    $

    4 días

    Tiempo

    gig

    Sistemas integrados e IoT

    Útil?
    Sí
    No
    E

    etrog2006

    IL

    Israel

    5

    Five-star experience! She was super fast to respond and caught onto the project requirements immediately. The quality of her work is top-tier, and she provided amazing service until the very last detail. Highly recommended, and I will absolutely work with her again!

    USD50-USD100

    $

    4 días

    Tiempo

    gig

    Sistemas integrados e IoT

    Útil?
    Sí
    No
    S

    stonez56

    Cliente recurrente

    TW

    Taiwán

    5

    Yanna Xu delivered an excellent PCBA design! The schematic was clean, well‑organized, and fully compliant with ERC/DRC checks. Communication was smooth and timely, and she provided clear documentation that made the process easy to follow. Highly recommended!

    USD50-USD100

    $

    6 días

    Tiempo

    gig

    Placas de circuito impreso (PCB)

    Útil?
    Sí
    No
    S

    stonez56

    Cliente recurrente

    TW

    Taiwán

    5

    Yanna Xu was outstanding in handling my PCBA manufacturing, design review, testing, and basic firmware validation tasks. He was consistently helpful throughout the entire process, and I had complete trust in her work. If you have PCBA design, review, testing related tasks, I highly recommended Xanna Xu!

    USD100-USD200

    $

    13 días

    Tiempo

    gig

    Placas de circuito impreso (PCB)

    Útil?
    Sí
    No