Ye Q.

I am an embedded systems and electronics engineer specializing in PCB design, firmware development, motor control, power electronics, and engineering software.
I can take a project from schematic and PCB design through embedded firmware, board bring-up, control algorithms, testing, and PC-side diagnostic/configuration tools.
My main experience includes:
• STM32, GD32 and ESP32 embedded systems
• 2–4 layer PCB schematic and layout design
• Mixed-signal, power supply and sensor interface design
• BLDC/PMSM motor control, FOC, SVPWM and closed-loop control
• FreeRTOS and embedded C/C++ firmware
• UART, SPI, I²C, CAN, RS485, Modbus and MQTT
• Bootloaders, OTA update and fault-recovery systems
• Qt, .NET and Rust/Tauri engineering and diagnostic tools
I have also worked on industrial motor-control systems, including five-phase stepper motor control for semiconductor vacuum-valve applications.
I focus on practical, manufacturable designs and pay close attention to power integrity, grounding, signal integrity, protection, component availability and DFM.
I am available for PCB design, embedded firmware, prototype development, design review, debugging and complete embedded-system development.