Schematic & layout
2–4 layer board design
PCB Design Portfolio
Hello there, welcome to my site. I’m Hoang Duy.
PCB Design | Schematic & 2–4 Layer Layout
I’m an Automation and Control Engineering Technology graduate focused on PCB design, power supplies, component selection and board layout.
PCB Design KiCad & AltiumPower AC/DC · DC/DCBasic STM32 · ESP32
From schematic design and component selection to PCB layout.
Open to PCB Design Engineering opportunities.
KiKiCad
Altium Designer
PCB Toolkit
STM32CubeMX
Arduino IDE
Codex
Claude CodeAC/DC & DC/DC
Power conversion fundamentals
STM32 & ESP32
Basic C/C++ and interfaces
Practical tools
Multimeter & oscilloscope
Design Workflow
DESIGN WORKFLOW
- 01
Requirements
Define board functions, interfaces, power needs and design constraints.
- 02
Simulation
Check critical power and analog circuits where simulation is useful.
- 03
Schematic
Select components, capture circuits and prepare the bill of materials.
- 04
PCB layout
Place and route components with stackup, return paths and manufacturing in mind.
- 05
Design review
Review design rules, electrical rules and key layout constraints.
- 06
Manufacturing files
Prepare fabrication outputs, BOM and assembly documentation.
- 07
Prototype / PCBA
Assemble and bring up the IoT Node prototype; other boards are design-complete.
- 08
Testing & validation
Check board operation and troubleshoot with practical electrical test tools.
ENGINEERING STUDIES
Featured Case Studies
PCB design projects covering industrial power and embedded hardware.
IoT Node and Gateway
THE PROJECT
ESP32-based IoT hardware for sensing, data logging and relay control.
PROJECT WORK
- Designed 220 VAC to 24 V, 5 V and 3.3 V power conversion.
- Integrated SHT31, RTC, EEPROM and SD card.
- Added RS485, Wi-Fi, LoRa and relay control.
RESULT
Prototype completedProject result
PCBA completedProject result
TOOLS & INTERFACES
Industrial Pump Controller & Data Logger
THE PROJECT
STM32F407 controller for pump monitoring, VFD control and data logging.
PROJECT WORK
- Designed 12 V, 5 V, 4 V, 3.3 V and 1.8 V power rails.
- Integrated RTC, EEPROM, SD card, relays and buzzer.
- Added CAN, RS485, RS232, Ethernet and SIM7600/GNSS.
RESULT
Design completedProject result
TOOLS & INTERFACES
Have a hardware challenge to explore?
↓ Download ResumeSELECTED WORK
Recent Projects
Personal PCB design projects, from schematics to board layout.
PCB DESIGN PROJECTS
5 of 5 projects
PERSONAL HARDWARE PROJECT↗
IoT Node and Gateway
Integrated ESP32 IoT board with LoRa, RTC, microSD and two relay channels, powered by 220VAC.
PERSONAL HARDWARE PROJECT↗
Industrial Pump Controller & Data Logger
STM32F407-based controller for industrial pump monitoring, VFD control and data logging.
PERSONAL HARDWARE PROJECT↗
ESP32 Datalogger
My personal ESP32 Datalogger hardware project, shown in Altium Designer.
PERSONAL HARDWARE PROJECT↗
ESP32 PLC
ESP32-S3 based PLC for industrial automation and IoT, with digital I/O, 4–20 mA analog interfaces and Modbus RS485.
PERSONAL HARDWARE PROJECT↗
6 Fan Controller
STM32F070-based intelligent PC fan controller with six PWM channels, four adjustable-voltage channels and USB control.
Personal PCB design projects by Hoàng Duy. Results reflect the completion status provided for each project.
ABOUT ME
PCB Design & Power Electronics
I graduated in Automation and Control Engineering Technology from Ho Chi Minh City University of Technology and Engineering. My main focus is schematic design, component selection and 2–4 layer PCB layout.
I work with KiCad and Altium on power conversion and industrial board designs.
CORE SKILLS:
- Schematic capture and PCB layout
- AC/DC, DC/DC power supplies and PCB fundamentals
- Component selection, stackup, constraints and routing
- Basic C/C++ and STM32/ESP32 hardware familiarity
ENGINEERING BACKGROUND
Education & Experience
PCB design training, engineering education and electrical experience.
Education
Ho Chi Minh City University of Technology and Engineering
Automation and Control Engineering TechnologySep 2019 – Sep 2026
- Automation Engineering
3DVisionLab – AIoTSemiconductor
PCB Design TrainingOct 2026
- Schematic design and PCB layout
Experience
ST Engineering Solution JSC
Electrical TechnicianApr 2024 – Aug 2025
- Wired AHU, FCU and DDC control panels.
- Worked with the team to troubleshoot issues.
Hung Thinh Phat Elevator
Electrical TechnicianSep 2025 – Sep 2026
- Installed electrical systems and components.
- Wired control panels; troubleshot and serviced elevator faults using electrical diagrams.
TOOLS & ENGINEERING KNOWLEDGE
Technical Skills
PCB Design & Tools
Schematic design, component selection, 2–4 layer layout and design-for-manufacturing basics.
Power Supply Design
Power conversion fundamentals and PCB design for multi-rail systems.
Communication Interfaces
Industrial and board-level communication protocols.
Testing & Design Review
Hands-on electrical testing and troubleshooting.
IoT & Connectivity
Wired and wireless connectivity used across board projects.
Embedded Fundamentals
Basic C/C++ and familiarity with STM32 and ESP32 hardware.
QUESTIONS & ANSWERS
Frequently Asked Questions
PCB design tools, board layout and project documentation.
Which PCB tools do you use?
KiCad and Altium Designer for schematic capture and PCB layout.
What is your PCB design scope?
Schematic design, component selection, 2–4 layer layout, stackup, routing, BOM and manufacturing outputs.
What power designs have you worked on?
AC/DC and DC/DC conversion using Buck, Boost and LDO topologies.
Do you work with microcontrollers?
I have basic C/C++ and hardware experience with STM32 and ESP32.
Which interfaces have you used?
I2C, UART, SPI, CAN, RS232, RS485, Ethernet and USB.
What testing tools do you use?
Multimeters and oscilloscopes for practical electrical checks.
GET IN TOUCH
Let's Talk For your Next Project(s)
Discuss a PCB project or say hello. Explore my board designs, technical skills, or experience.
- Schematic design and PCB layout
- Power supply and component selection
- Board constraints, routing and BOM
- Basic embedded hardware integration