Изображение профиля dalong243020
Флаг China Harbin, China
На сайте с 15 июня 2019 г.
2 Рекомендации


В сети Офлайн
I'm a qualified Software(C++ /iOS/Android/Webserver) and electronics engineer having rich 13yrs+ experiences. Have worked with following peripherals & technologies: - Android & iOS App Development -Social SDKs(Facebook, Twitter, Admob, Google APIs and all other sections of Social) -MySQL, PHP, JSON, UI/UX - Wireless: Bluetooth (2.0 and BLE), WiFi (ESP8266 and ESP32), RFID, nRF24L01+, etc., - 9DOF IMU sensors (accel+gyro+mag) + data filtering (complementary, Kalman, Madgwick filters), - Ethernet & TCP/IP stack, Developed numerous C libraries for using sensors and shields with STM32 ARM and have experience of creating a device from scratch, doing both firmware and PCB development (Autodesk Eagle CAD). Additionally, I teach C & microcontrollers programming at TechMaker Patent holder, invented a device for measuring wind velocity and direction, which won a number of awards at Intel International Science and Engineering Fair 2009 Kinds regard.
$30 USD/hr
6 отзыва(-ов)
  • 100%Выполненные работы
  • 90%В рамках бюджета
  • 100%Своевременность
  • 13%Рейтинг повторного найма


Последние отзывы

  • изображение Avinash S. Project for Jin Q. -- 2 $1500.00 USD

    “Great work as usual. Lot of communication and clear goals. Looking forward to working more with Jin.”

  • изображение Avinash S. Project for Jin Q. $500.00 USD

    “Developed on time.......Communicates and asks proper question. Very involved and likes to improve project in general.”

  • изображение Alan J. Analog circuit simulation with Tina-TI $150.00 USD

    “Did circuit simulation work quickly and was very responsive.”

  • изображение Avinash S. Circuit Design and Simulation - Automotive Electronics $500.00 USD

    “Good Work.....very helpful!”

  • изображение Jay G. Project for Jin Q. $155.00 CAD

    “Fast and great developer. Will hire again.”

  • изображение Gavrichkov O. Wireless Bar Code Scaner -- 2 $2425.00 USD

    “Perfect freelancer. He made fast work. I will hire again.”

Опыт работы

Mobile(iOS/Android/Webserver) development

Jan 2016 - May 2019 (3 years)

As I am a skillful software developer, I have developed mobile apps with backend.

Camera Target Detection System & Drone Control System Develop

Mar 2015 - May 2019 (4 years)

I'v worked on developing Camera Target Detection System & Drone Control System Develop... And then gained a good experiences. In developing team, my level stays on top. So the company got the excellent Profit.



1983 - 1989 (6 years)


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