I will provide iot and wearable products prototype

5.0
5.0

China

I speak English, Chinese

6 orders completed

Embedded Systems Engineer, PCB design Expert, Prototype, Firmware Development

I’m an Electronics Engineer, Embedded Developer, and PCB Designer specializing in wireless electronics, microcontroller systems, and intelligent embedded solutions. With over 7 years of experience, I’...
About this Gig

I specialize in IoT and wearable product development from concept to production.

My experience covers embedded hardware design, firmware development, wireless connectivity, prototype bring-up, validation testing, and manufacturing support.

Completed projects include:

  • BLE and Wi-Fi wearable devices
  • nRF52/nRF53 and ESP32 based IoT products
  • STM32 and EFR32 embedded systems
  • Low-power battery-operated devices
  • Smart sensor and data acquisition systems
  • LTE, GNSS, BLE, Wi-Fi, and sub-GHz wireless products
  • Health monitoring and wearable tracking devices
  • Custom embedded Linux and RTOS-based systems
  • Prototype development and production-ready hardware

Technical expertise includes:

  • Firmware development using C/C++
  • FreeRTOS, Zephyr, ESP-IDF, STM32CubeIDE, nRF Connect SDK, and Simplicity Studio
  • PCB design with Altium Designer, KiCad, and EasyEDA
  • Hardware bring-up, debugging, validation, and optimization
  • Communication interfaces including BLE, UART, SPI, I2C, CAN, USB, and TCP/IP
  • Low-power optimization and reliability engineering

I focus on building reliable, manufacturable, and production-ready IoT solutions with clear communication and efficient development workflow from idea to final product.

Platform:

ESP32

Sensors:

Temperature

Humidity

Accelerometer

Ultrasonic

Microphone

Expertise:

Firmware development

RTOS

Microcontrollers

Networking

My Portfolio

Other Electronics Engineering Services I Offer

Reviews

1 reviews for this Gig
5.0

(1)
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(0)
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Rating Breakdown
  • Seller communication level
    5
  • Recommend to a friend
    5
  • Service as described
    5
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Most relevant
  • A
    image-docs

    alexyousefian

    GB

    United Kingdom

    5

    Very knowledgeable and a pleasure to work with. Highly recommended.

    Helpful?
    Yes
    No
Reviews

1 reviews for this Gig
5.0

(1)
(0)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Recommend to a friend
    5
  • Service as described
    5
Sort By
Most relevant
  • A
    image-docs

    alexyousefian

    GB

    United Kingdom

    5

    Very knowledgeable and a pleasure to work with. Highly recommended.

    Helpful?
    Yes
    No