01 / FIRMWARE
Secure OTA Firmware
Dual-slot firmware update flow with image validation, persistent metadata and rollback-oriented boot logic.
Selected
work.
Projects are presented as engineering evidence: architecture, firmware, hardware decisions, debugging and measurable outcomes — not just a list of technologies.
02 / CONNECTIVITY
BLE Indoor Localization
Beacon scanning, RSSI filtering and position estimation with a focus on repeatable measurements and embedded constraints.
UART / 115200 8N1 · CAPTURE
03 / DEBUGGING
Cortex-M HardFault Analyzer
Fault handler that captures stacked CPU state and fault registers to turn a crash into actionable debug evidence.
04 / AUTOMOTIVE
Automotive Black Box
CAN-oriented event logging and diagnostic capture with attention to arbitration, message priority and timestamped evidence.
Show the
bench.
Replace or extend these visuals with your actual board photos, KiCad layouts, oscilloscope captures and logic-analyzer screenshots. Real evidence beats decorative graphics.
BOARD / MCU
STM32 / ESP32 boards
Show the actual board, model and what the target was used to validate.
SCOPE / WAVEFORM
Oscilloscope measurements
Annotate frequency, voltage, timing, rise/fall time or the fault you actually found.
LOGIC ANALYZER
SPI / CS / CLK / MOSI / MISO
Logic analyzer captures
Use UART, SPI, I²C or CAN traces to prove the electrical and protocol side of debugging.
PCB / KICAD
KiCad PCB
Show schematic, PCB layout and the engineering decisions behind power or interface circuitry.
DEBUG / SWD
gdb → target remote
break main
> halted at 0x080014ac
Debugging setup
Document the debugger, target board, terminal and measurement equipment used to reproduce the issue.
BRING-UP
POWER
→
CLOCK
→
GPIO
→
UART
Bring-up evidence
Show the sequence from power-on to clock, GPIO, UART, peripheral and application validation.
My
timeline.
A progression from electronics fundamentals to embedded firmware, practical debugging and complete hardware–software systems.
Electronics foundation
Built my foundation around circuits, signals, microcontrollers and understanding how physical hardware becomes a measurable system.
Embedded firmware
Moved deeper into bare-metal development, peripherals, buses, interrupts, memory and deterministic firmware behaviour.
Hardware debugging
Expanded from writing code to measuring real behaviour with oscilloscopes, logic analyzers, UART, JTAG and GDB.
Complete embedded systems
Started building larger systems spanning OTA updates, crash analysis, device authentication, BLE and embedded interfaces.
Hardware / software boundary
Focused on embedded systems and firmware that can be measured, reproduced, debugged and trusted on real hardware.
What I
work with.
Structured by engineering function so a recruiter can understand capability without decoding a technology shopping list.
01
Languages
CCORE
C++OOP
PyTOOLS
shCLI
02
Microcontrollers
STMARM
ESPESP32
MCORTEX
03
Embedded
RTRTOS
IRQINT
DMADATA
TMRTIMER
04
Communication
↔UART
SPIBUS
I²CBUS
CANAUTO
BLERADIO
MQMQTT
05
Debugging
GDBDEBUG
JTAGSWD
LAANALYZER
OSCSCOPE
06
Tools & OS
CubeSTM32
KKEIL
VSCODE
GitVCS
RKRENODE
KiKICAD
🐧LINUX
Things I
have built.
Selected projects from my GitHub. Each card goes directly to the repository, where you can inspect the source, architecture, documentation and implementation.
01 / DEBUGGING
CFirmware Crash Analyzer
Silicon-grade HardFault analysis for ARM Cortex-M with fault capture, register inspection, persistent crash records and post-mortem symbolication.
02 / BOOTLOADER
CDual-Slot OTA Bootloader
Bare-metal x86 bootloader demonstrating a two-stage boot flow, dual firmware slots, update-state handling and automatic rollback.
03 / SECURITY
CESP32 Secure OTA
Secure firmware update system focused on signed firmware, anti-rollback protection and a cryptographic boot chain.
04 / IOT SECURITY
CSecure IoT Device Authentication
ESP32 + QEMU security project covering secure boot, firmware integrity verification, mutual TLS authentication and device revocation.
05 / WIRELESS
BLEBLE Indoor Localization
RSSI-based localization using beacon scanning, trilateration and filtering techniques for indoor zone detection.
06 / STM32
CSTM32 Bare-Metal CLI
Register-level STM32 firmware with a UART command interface for GPIO, timers and ADC control, plus custom memory-layout work.
Build. Measure.
Debug.
The portfolio should make one thing obvious: you don't just know the names of embedded technologies — you can use instruments, reason from evidence and turn failures into working systems.
NOW
Embedded / Firmware Engineering
Building projects around microcontrollers, communication interfaces, debugging and hardware-software integration.
Focus: STM32 · ESP32 · C/C++ · RTOS · UART · SPI · I²C · CAN · GDB · JTAG/SWD
NEXT
Deeper Systems Work
Strengthening low-level architecture, RTOS synchronization, bootloaders, drivers and board bring-up.
Goal: produce more measured evidence and complete engineering case studies.