Charles L.

I turn ideas into physical products. With nearly 20 years of hands-on embedded engineering and an MSc in Computer Science, I'm one of the rare engineers who is equally comfortable with the circuit, the firmware, and the mechanical housing — and that combination is exactly what makes hardware projects ship. — THE GAP I CLOSE Most hardware projects don't fail at one discipline; they fail at the seams between them. The hardware engineer doesn't understand the firmware, the firmware engineer can't design the enclosure, and nobody owns the whole product. I do. With a software-engineering background and two decades on hardware, I can design your PCB (1–6 layers), write the embedded C or Linux driver, model the casing in SolidWorks, and hand-solder the BGA chips myself to prove it works. — WHAT I'VE BUILT Smart hotel room control systems (RS485-based central controllers driving lighting/HVAC/curtains), the Autel MS908 automotive diagnostic tablet (I led product design + product/project management, mass-produced), digital gun sights and thermal imaging scopes, TWS Bluetooth earbuds and charging cases (firmware + hardware, battery/power management), a car-charger PCB, industrial endoscopes, and my own AI-module hardware debugging tools — across consumer electronics, automotive, industrial control, and medical devices. — MECHANICAL & ENCLOSURE DESIGN Beyond electronics, I design product housings in SolidWorks for 3D printing and injection molding: snap-fit enclosures, button and cutout layouts, battery compartments, and DFM-ready parts that actually print and assemble — not just look good on screen. — FROM CONCEPT TO SAMPLE IN HAND Tell me your concept and I'll handle the full path: schematic, PCB layout, firmware, enclosure, and a working prototype. Based in Shenzhen — the center of the world's electronics supply chain — so your design doesn't stay on screen: prototypes spin fast (LCSC, JLCPCB, local factories), and I can coordinate fabrication and assembly. Having managed teams and departments, I treat deadlines, cost, and quality like it's my own product. Let's talk about your project.