leng shen

Dandong, Liaoning, China

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All-Time Earnings: $0
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Member Since: Dec 2020

As an experienced electronic engineer, I have been working in PCB design/layout and firmware development for 10+ years.
- Altium Designer, Cadsoft Eagle, Cadence Allegro, OrCAD, Ansoft, ADS, …Read More.

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Hubbster PCB board
Spectrum Device
Personal Air Controller
USB3.1 HUB design
Water Filter- Signal Gernerator
mc Thing - Roving Gateway
LoPY 4 cotrol board