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Cosmic particle vortex


Natchpai

Hey, I'm Tonpai

Electrical Engineering Student | Hardware & PCB Designer

I design analog, digital, and mixed-signal circuits, embedded hardware, and multilayer PCBs.
Currently exploring high-speed digital design and SoC hardware.

📖 Hardware Projects

Project Description
LQRx-InterleavedBuck Two-phase interleaved synchronous buck converter with digital LQR control.
STM32 LQR · Firmware
ESP32 Electronic Load Low-cost DC electronic load with analog and digital control.
ESP32 Op-Amp PI Control

🛠️ Tools & Other Projects

Project Description
Hardware-Copilot Claude Code skills and tools for hardware engineering.
Claude Code KiCad
kicad-workspace My KiCad libraries and project templates.
KiCad Libraries Templates

🔄 In Progress / On Hold

Project Description Status
AeroOptix-Horizon Dual-MCU flight controller developed with the AeroOptix Club.
STM32H7 STM32F1 Webpage
In Progress
myZettBrett Custom development board based on the AMD/Xilinx Zynq-7000 SoC.
Zynq-7000
On Hold

📋 Planned Projects

  • Nyquix — STM32-based mixed-signal DSP development board.
  • Custom microprocessor development board.

wave-space

💬 About Me

I'm an Electrical Engineering student interested in hardware and PCB design, especially mixed-signal circuits, digital hardware, and high-speed design.

I work on projects involving analog circuits, power supplies, embedded systems, and multilayer PCBs. I enjoy working on both hardware design and hands-on testing.

  • 📌Currently learning: High-speed interface layout, DSP, and SoC hardware design.
  • 🚩Goal: Become a well-rounded hardware engineer and PCB designer.
  • ☕Powered by: Coffee.

⚙️ Technical Skills

  • PCB Design: 4–10 layer PCBs, stackup planning, controlled impedance, differential pairs, length matching, DFM
  • Analog & Mixed-Signal: Op-amps, active filters, audio preamps, headphone amplifiers
  • Digital Hardware: Digital circuits, basic SoC hardware design
  • Power Electronics: Switching and linear regulators, synchronous buck converters
  • Hardware Development: Component selection, datasheet analysis, simulation, schematic design, PCB layout, debugging
  • Embedded Systems: STM32, LL drivers, real-time control
  • Control Systems: Digital LQR, PI control, analog and digital feedback loops
  • Testing & Measurement: Oscilloscope, thermal camera, FFT analysis
  • Engineering Tools: KiCad, LTspice, MATLAB, STM32Cube

🏢 Project Experience

Consultant | AeroOptix KMUTNB

  • Project: AeroOptix-Horizon, a dual-MCU flight controller developed with the AeroOptix Club.

🚀 Milestones

  • Microcontrollers: ARM Cortex-M, bare-metal C, STM32
  • Mixed-Signal & DSP: ADC/DAC interfaces, audio CODECs, DSP systems
  • High-Speed Hardware: High-speed interfaces and PCB design
  • Microprocessor Hardware: Custom STM32MP development board
  • FPGA & SoC: Lattice FPGA, AMD/Xilinx Zynq-7000

📬 Connect

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📊 GitHub Activity

GitHub stats GitHub streak

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