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Achievement: Pull SharkAchievement: Quickdraw

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StevenReynoso/README.md

Hi there, I'm Steven Reynoso!

Embedded Systems Engineer & Robotics Specialist

Based in California

I am a Computer Engineering Master's student and Embedded Developer passionate about the intersection of hardware and software. I specialize in writing bare-metal C, building Real-Time Operating Systems (RTOS) from scratch, and developing autonomous navigation systems for mobile robots.

Tech Stack

Languages C C++ Python

Embedded & Robotics STM32 ROS ESP32 RTOS TinyML

Tools & Protocols Linux Docker Git CMake UART I2C SPI

Key Projects

Embedded Sleep Apnea Detection


  • Real-time medical inference on STM32F446RE (< 130ms latency).
  • Trained 1D-CNN in Python and deployed optimized C code via STM32Cube.AI.
  • Solved class imbalance using weighted training and Hardware-in-the-Loop validation.

Bare-Metal RTOS Kernel


  • Built a cooperative RTOS kernel from scratch in C (No HAL / No CMSIS).
  • Implemented custom task scheduling using SysTick and context switching.
  • Features GDB-debuggable task monitoring and real-time logging.

STM32 HAL Library


  • Custom low-level drivers for STM32F4 (GPIO, UART, SPI, I2C).
  • Direct register programming to bypass vendor bloat and minimize overhead.
  • Validated timing/drivers via Oscilloscope Tracing and Logic Analyzers.

Aloha Mobile Robot


  • Engineered autonomy software using ROS, OpenCV, and Intel RealSense.
  • Developed reactive control pipelines to correct sensor drift and PID misalignment.
  • Integrated robot models into NVIDIA Isaac Sim for simulation.

Connect with Me

Pinned Loading

  1. Sleep-Apnea-Detector Sleep-Apnea-Detector Public

    A real-time medical device prototype that uses Deep Learning (TinyML) to detect sleep apnea events from raw ECG signals directly on a microcontroller. This project demonstrates the end-to-end pipel…

    C 1

  2. Hal_Library Hal_Library Public

    Hardware Abstract Library for the stmF4 series chipset, with Doxy File documentation

    C

  3. task_monitor_rtos task_monitor_rtos Public

    Bare-Metal Task Monitor with RTOS, No Libraries. Serves as a task monitoring system on an lcd1602 display with dht11 temperature

    C

  4. RTOS_Task_Scheduler_No_library RTOS_Task_Scheduler_No_library Public

    STM32 Bare-Metal RTOS (Cooperative Task Scheduler)

    C

  5. MMA-Statistics MMA-Statistics Public

    Full-stack UFC & MMA fight data explorer with fighter stats, event listings, and Python-based web scraping.

    Jupyter Notebook

  6. Smart-Trash-Level-Monitor Smart-Trash-Level-Monitor Public

    Smart Trash Level Monitor (Embedded C++ System): Monitors the level of space in a trash bin