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MehediEEE45/README.md

PCB Design · Embedded Firmware

Hi, I'm Mehedi 👋

I design PCBs and write embedded firmware that work on real hardware. Final-year EEE student at Shahjalal University of Science and Technology (SUST), RoboSUST member, and Auto Grand Prix champion.

Fiverr LinkedIn Email

What I do

  • PCB design: schematic and 2/4-layer layout in KiCad, EasyEDA and Altium, with Gerber, BOM and pick-and-place files ready for JLCPCB or PCBWay
  • Embedded firmware: ESP32, STM32 and Arduino, FreeRTOS, bare-metal C, sensors, motor control, Wi-Fi, BLE and MQTT
  • PCB review: schematic, layout and DFM checks before you order
  • Prototypes: breadboard projects turned into compact custom boards

Featured projects

Project What it is Stack
PCB Portfolio 4-layer ESP32-S3 smartwatch, USB-C PD power board, STM32 line-follower board KiCad · EasyEDA · JLCPCB
Delta-Bot ESP32-C3 desk robot with an animated OLED face, touch gestures and a phone dashboard C++ · PlatformIO · NimBLE
Battery Management System Monitors voltage, current, temperature, SoC and SoH, with relay cut-offs and MQTT over TLS ESP32 · FreeRTOS · MQTT
ESP32 Health Monitor Multi-patient heart rate, SpO2 and temperature streaming ESP32-S3 · MQTT
STM32 Audio Classification Real-time on-device audio classification with MFCC preprocessing STM32F746G · TFLite Micro
Robotic Arm Touch-controlled 4-servo arm with a 3D-printed body STM32F746G Discovery

Tools and tech

KiCad EasyEDA Altium ESP32 STM32 Arduino FreeRTOS C C++ Python PlatformIO MQTT

Achievements

  • 🏆 Champion, Auto Grand Prix V6.0 (autonomous robotics), SUST
  • 🥇 Winner, UIHUB-24 / Unibator, ORCA autonomous project
  • 📄 Conference paper presenter, IEEE EICT 2025
  • 🎓 Ran hands-on STM32 microcontroller workshops for SUST students

Building a hardware product? Message me on Fiverr or connect on LinkedIn.

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  1. Battery_Management_System Battery_Management_System Public

    ESP32 Battery Management System: monitors voltage, current, temperature, SoC and SoH (INA219 + LM35), charge-relay cut-offs, real-time MQTT over TLS, FreeRTOS firmware with OLED display and EEPROM …

    HTML

  2. ESP32-Health-Monitor ESP32-Health-Monitor Public

    A scalable IoT healthcare system using the ESP32-S3 to live-stream multi-patient Heart Rate, SpO₂, and Temperature data via MQTT. Supervised by Mohona Das Gupta (Lecturer, Dept. of EEE, SUST).

    JavaScript

  3. Audio-Classification_with_Stm32F746G- Audio-Classification_with_Stm32F746G- Public

    Real-time audio classification for STM32F746G Discovery: on-device MFCC/log-mel preprocessing and optimized inference (TFLite Micro or STM32Cube.AI). Includes firmware integration, model-conversion…

    2

  4. Delta-Bot Delta-Bot Public

    ESP32-C3 desk companion robot with an animated OLED face, touch gestures, phone web dashboard, voice commands, Pomodoro timer and virtual pet. PlatformIO C++ firmware, 3D-printed body.

    C++

  5. pcb-portfolio pcb-portfolio Public

    PCB design portfolio: 4-layer ESP32-S3 smartwatch, USB-C PD power board, STM32 line-follower robot. KiCad, EasyEDA, Altium, JLCPCB-ready.

  6. Robotic-Arm Robotic-Arm Public

    This is a hobby project to make robotic arm . I am use stm32f746 disco board for touch four servo motor 90 degree rotation able . the arm i design and print in my university department lab.

    C