I design circuits and build electronics
from custom PCBs to cleanroom silicon
Renad Alanazi is an electrical engineer based in Riyadh, Saudi Arabia. Every project in this portfolio was taken from blank schematic to working, validated hardware.
Every one taken from blank schematic to working, validated prototype. Not a proof of concept.
Personal Alert Device: 1100 mAh Li-ion, wireless charging, continuous lab validation.
Automotive rain-sensing prototype: MOSFET headlight drivers, relay-driven wipers, measured on hardware.
Four projects, each taken to working hardware
Semiconductor fabrication, automotive electronics, discrete analog control, and connected wearables. Each one built and validated by Renad Alanazi.
Semiconductor Fabrication Project
Cleanroom microfabrication project taken from mask design to wafer-level chip fabrication.
Deliverables: Patterned silicon wafer, process documentation, and inspection imaging at each step.
Read the case study
Automotive Rain-Sensing Control System
Automotive prototype that detects rain and automatically activates headlights and wipers at adaptive intensity.
Deliverables: Optical rain sensor, MOSFET headlights, relay-driven wipers, activation under 2 seconds.
Read the case study
Discrete Logic Traffic Controller
Fully analog traffic light controller built end to end with 555 timers, comparators, and CMOS logic gates.
Deliverables: Working signal with sound-activated on/off, regulated power, and per-colour LED drivers.
Read the case study
Personal Alert Device
Compact wearable safety device taken from concept to a working prototype with custom electronics and wireless charging.
Deliverables: Custom 2-layer PCB, wireless charging, 1100 mAh battery, 72 h tested runtime.
What the portfolio demonstrates
Six technical domains, each backed by hardware that was designed, assembled, and validated. Not simulated.
PCB Design & Layout
Schematic capture, multi-layer PCB layout, BOM generation, and DFM-ready Gerber outputs using Altium Designer and KiCad. The Personal Alert Device PCB (30 × 40 mm, 2-layer) went from layout to production-ready board.
Power Electronics
MOSFET-based switching circuits, relay drive logic, Li-Ion regulation, and battery management. Applied in the automotive rain-sensing system: dual-stage MOSFET headlight control and relay-driven wiper motor on a 12 V supply.
Embedded Systems
Microcontroller hardware design covering STM32, ESP32, and nRF platforms, with BLE communication, sensor integration (heart rate, temperature), I²C/SPI/UART, and firmware bring-up on custom boards.
Wireless Charging
Inductive charging system design: transmitter coil, receiver, rectification, and charge management circuitry integrated into a compact wearable PCB with a 1100 mAh Li-ion cell.
Hardware Validation & Testing
Bench-level debugging with oscilloscopes, logic analyzers, and DMMs. Functional test planning and documented validation, including 72-hour continuous runtime testing and sub-2-second activation measurement.
Semiconductor Fabrication
University cleanroom experience: photolithography, mask design, wet and dry etching, resist strip, and optical microscope inspection at each process step on silicon wafers.
Boston University Electrical Engineering
ABET-accredited undergraduate program with rigorous laboratory components in circuit design, semiconductor physics, embedded systems, and power electronics. The same technical areas applied in every project in this portfolio.
What separates this portfolio
Three things that distinguish this portfolio. The evidence is in the case studies.
Cleanroom fabrication
Most EE graduates have never held a silicon wafer. Renad has executed a full photolithography process flow in a university cleanroom: mask design, photoresist application, wet and dry etching, and optical inspection at each step. This is hands-on semiconductor physics, not textbook knowledge.
Analog design without a microcontroller
The portfolio includes a fully discrete traffic light controller with no firmware and no MCU. Built with 555 timers, op-amp comparators, and CMOS logic gates, it demonstrates command of analog electronics at a level that embedded-only engineers rarely need to develop.
Every prototype was validated on real hardware
Schematic to tested hardware, not schematic to PDF. The Personal Alert Device ran for 72 hours in continuous testing. The automotive prototype activated in under 2 seconds, measured on the bench. The traffic controller drives real LEDs from a real regulated supply.
Ready to interview an Electrical Engineer who builds hardware that works?
Renad Alanazi is actively seeking full-time roles in Saudi Arabia. Resume, portfolio, and references available on request.
Or reach out directly at protocircuitlabs@gmail.com