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fatmanweb3/README.md

Hi, I'm Sudharsan

Embedded Systems Engineer | Hardware–Firmware Integrator

Core Identity

  • Embedded Systems Engineer specializing in bare-metal programming, RTOS development, and low-level hardware control.
  • Strong foundations in electronics, PCB design, and firmware engineering.
  • Experienced in building complete embedded solutions — from hardware architecture to firmware, drivers, and system integration.
  • Deep experience with FreeRTOS, Zephyr RTOS, and custom real-time embedded systems.

Tech Stack & Expertise

Embedded Development

  • MCUs: STM32, RP2040, ESP32, NXP, ARM/Cortex-based controllers
  • Languages: C, C++, Python, Rust (occasionally)
  • Firmware: Bare-metal, FreeRTOS, Zephyr RTOS, custom RTOS
  • Protocols: SPI, I2C, UART, CAN, USB, BLE, WiFi
  • Toolchains: GCC, CMake, Make, OpenOCD, J-Link, PlatformIO

Hardware & Electronics

  • PCB design and board bring-up
  • Schematics, circuit-level design, power design fundamentals
  • Hardware debugging, sensor integration, communication modules

Embedded Linux

  • Linux device drivers (beginner → intermediate)
  • Yocto basics and Linux board bring-up
  • Kernel configuration and hardware enablement

Practical Skills (What I Build)

  • End-to-end embedded systems (hardware + firmware)
  • Low-level hardware drivers and BSP setup
  • Bare-metal architectures and RTOS-based real-time applications
  • Hardware testing, debugging, optimization, and system bring-up
  • Embedded Linux integration and peripheral enablement

Currently Learning / Working On

  • Advanced Zephyr RTOS workflows
  • Strengthening Linux driver development
  • Bare-metal + RTOS hybrid system architectures
  • Expanding Rust in embedded environments

(Tech Areas I Work With)

Operating Systems / RTOS

OS Kernel Bare Metal FreeRTOS Zephyr RTOS Developer

MCUs & Hardware

STM32 RP2040 ESP32 NXP

Languages

C C++ Python Rust

Embedded Linux

Device Drivers Yocto Kernel

Contact

Pinned Loading

  1. i2c-lcd-driver i2c-lcd-driver Public

    This repository contains a collection of modular and portable I2C display drivers. These drivers are designed to be easily integrated into different systems, providing flexible support for various …

    C 1

  2. fatmanweb3 fatmanweb3 Public

    Time Traveller From Lemurian Age

  3. d6t_mems_thermal_sensor d6t_mems_thermal_sensor Public

    a quick and short guide on using d6t sensor and their various model, i have personally worked on D6T_32L_01A sensor, but other sensors do also have the same type of working behaviors

    C

  4. embedded-systems embedded-systems Public

    C

  5. Rpi_Pico Rpi_Pico Public

    CMake

  6. pi-zero pi-zero Public

    Stuffs About Raspberry Pi Zero W

    Shell