Octarudin Mahendra
Hi there, I’m Octarudin Mahendra 👋
Embedded System Engineer | Firmware Programmer | IoT Engineer
Embedded System Engineer focused on robust firmware & IoT using ESP32, STM32, and Raspberry Pi with FreeRTOS & Linux. I specialize in bridging the gap between hardware-level programming and modern software engineering practices like Clean Code, Layered Architecture, and CI/CD.
🛠 Tech Stack & Tools
- Computing Platforms:
ESP32 Series,STM32(Cortex-M),Raspberry Pi 3 Model B+,RP2040. - Operating Systems:
FreeRTOS,Linux(Ubuntu, Raspbian/Raspberry Pi OS). - Hardware Peripherals: UART, I2C, SPI, DMA, Timers, Interrupts, Watchdog, I2S, CAN Bus.
- Communication Protocols: Modbus (RTU/TCP), MQTT, HTTP/HTTPS, TCP/IP, LoRaWAN.
- Connectivity: Ethernet (W5500), LoRa, Wi-Fi, GSM/GPRS, GPS/GNSS.
- Hardware Design: Altium Designer, EasyEDA Pro (Multi-layer PCB Design).
- DevOps & Tools: Git, Docker, GitHub Actions (CI/CD), PlatformIO, ESP-IDF, STM32CubeIDE.
🎯 Current Focus & Learning
- Embedded DevOps: Architecting automated workflows for
ESP32&STM32using GitHub Actions for firmware builds and versioning. - Firmware Design Patterns: Implementing Layered Architecture (HAL/SAL/App) to ensure modularity and decoupling hardware from business logic.
- Quality Assurance: Mastering Unit Testing & Mocking (Unity/CMock) to implement TDD in embedded environments.
📈 Featured Projects
- Energy Monitoring System: High-precision power quality monitoring. Utilizes
ESP32-S3&FreeRTOSto sample data from PZEM-016 via Modbus RTU. Data is sent via MQTT to a Golang-based Dashboard. - Industrial IoT Gateway: Robust environmental monitoring using
ESP32&FreeRTOS. Integrates PMS7003 (Dust) and MH-Z19C (CO2) with reliable MQTT uplink and SQLite storage. - Dasai Mochi (Interactive Robot): Compact robot using
ESP32-C3. Features gesture recognition via MPU-6050 and an interactive HMI on a 1.3” OLED. - Firmware Architecture Templates: Professional boilerplates for ESP32 and STM32 implementing Layer-first Clean Code for modular development.
📫 Let’s Connect!
- LinkedIn: linkedin.com/in/octarudin
- Email: octarudin@gmail.com
“Usaha. Doa. Tawakal.”