y
yannaxu

Yanna Xu

@yannaxu
5.0(5)

Level 1

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

China
Chinese, English
About me
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... Read more

Skills

y
yannaxu
Yanna Xu
Offline • 
Average response time: 2 hours

See my services

Printed Circuit Boards (PCB)
I will design, review, guide schematics, pcb, pcba, jlcpcb production, basic firmware
5.0(3)
Embedded Systems & IoT
I will design low power iot firmware with wifi, ble, lora, lcd by esp32, nrf52, stm32
5.0(2)

5 Reviews
5.0

(5)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    5
1-5 out of 5 Reviews
Sort By
Most relevant
    O
    image-docs

    oleg_lucasevici

    Repeat Client

    MD

    Moldova

    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...

    $100-$200

    Price

    3 days

    Duration

    gig

    Printed Circuit Boards (PCB)

    Helpful?
    Yes
    No
    O
    image-docs

    oleg_lucasevici

    Repeat Client

    MD

    Moldova

    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...

    $50-$100

    Price

    4 days

    Duration

    gig

    Embedded Systems & IoT

    Helpful?
    Yes
    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!

    $50-$100

    Price

    4 days

    Duration

    gig

    Embedded Systems & IoT

    Helpful?
    Yes
    No
    S

    stonez56

    Repeat Client

    TW

    Taiwan

    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!

    $50-$100

    Price

    6 days

    Duration

    gig

    Printed Circuit Boards (PCB)

    Helpful?
    Yes
    No
    S

    stonez56

    Repeat Client

    TW

    Taiwan

    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!

    $100-$200

    Price

    13 days

    Duration

    gig

    Printed Circuit Boards (PCB)

    Helpful?
    Yes
    No