Profile image of CometJu
Flag of China Jilin, China
Member since December 30, 2018
1 Recommendations


Online Offline
I have 8+ years experiences related to hardware and firmware development. - Electronics circuit design(schematic, PCB, simulation) - Microcontrollers(Microchip PIC, ARM, AVR, 8051) - Arduino projects(LED, various LCD, Keyboard, Mic&Speaker, Memory,...) - Wire/wireless communications (Ethernet, WiFi, Bluetooth, ZigBee, USB, RS232/485, CAN, I2C, etc.) - Device development and programming using FPGA/CPLD - sensors (temperature, humidity, precipitation, air pressure,...) - RF/Microwave Devices(active/passive) development I always will satisfy your needs perfectly and clearly. I can work in full-time, 12+ hours/day and can work in your timezone. Also will keep good communication. Best regards, Li.
$30 USD/hr
21 reviews
  • 96%Jobs Completed
  • 96%On Budget
  • 82%On Time
  • N/ARepeat Hire Rate


Recent Reviews

  • image of Yousf I. Looking for a PCB designer $35.00 USD

    “There was a trouble to work with him but at least, we could get the final result. Thanks. His quality is good enough.”

  • image of Turcanu I. Project for Li J. $100.00 USD

    “There was some argument with the freelancer, but we finally got satisfied result. I think he is professional and always want to learn something. I recommend this freelancer.”

  • image of Donal M. Project for Li J. £100.00 GBP

    “Very happy with the schematic work Li J. completed for me.”

  • image of Veysel O. Project for Li J. -- 2 $400.00 USD

    “he supplied well job”

  • image of Kent M. Temperature sensor, display and control (12 volt) $250.00 USD

    “Work was adiquate, but had problems delivering on time. Also did not deliver the what I reqestind in full, had to redo the design to fasilitate the origional ask.”

  • image of Aman B. PCB design for 32 led output control $305.00 USD

    “good Job done, good knowledge, good programmer. Helpful guy. will hire again. Thanks”


Hardware and Firmware developer

Apr 2014

I 'm working in this company as a Hardware and Firmware developer.



2009 - 2014 (5 years)


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