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Devraj-7/README.md

Devraj Patil — Embedded Firmware Developer

B.E. E&TC @ PICT Pune  |  R&D Intern @ Innotronix Labs  |  Open to embedded roles in Pune / Remote

What I work on

I build firmware for microcontrollers — configuring peripherals at the register level, debugging signal lines with an oscilloscope, and making sure the system behaves correctly on real hardware.

  • MCUs: STM32 (ARM Cortex-M), ESP32, Microchip PIC/AVR
  • Languages: Embedded C (primary), C++ (basic), Python (basic)
  • Protocols: UART · SPI · I2C · CAN (basic) · Modbus (basic) · Wi-Fi
  • Tools: STM32CubeIDE · Keil · KiCAD · ST-Link · Logic analyzer · Oscilloscope
  • PCB: 2-layer board design in KiCAD — schematic, layout, DRC
  • RTOS: Task scheduling, semaphores (FreeRTOS concepts)

Projects

ESP32 Face Recognition Door Lock

Real-time face recognition on a dual-core ESP32 with RFID fallback authentication and solenoid actuator control. Involved peripheral init, event-driven logic, serial debugging, and latency optimisation for continuous camera streaming.
ESP32 Embedded C SPI GPIO Real-time systems

Touchless IR Sensor Water Tap

IR-based proximity detection with real-time signal processing and relay actuator control. Tuned detection thresholds and timing to handle noise and improve response reliability.
Embedded C IR sensing Actuator control Signal processing

Automated Hydroponics Dosing System (IoT)

MCU-based automation with ADC sampling, pump control, sensor monitoring, and cloud connectivity for remote monitoring.
IoT ADC Embedded C Cloud integration

Experience

R&D Intern — Embedded Firmware · Innotronix Labs & Trading Pvt. Ltd. (Jun 2025 – Feb 2026)
Firmware development for industrial SMPS testing systems and access control hardware. Board bring-up, hardware debugging, KiCAD PCB design, production testing workflows, and technical documentation.

Embedded Systems Virtual Intern · Microchip Technology (2024)
Structured training in Microchip MCU/MPU architecture, peripheral configuration, and firmware development practices.

Education

B.E. Electronics & Telecommunication · PICT Pune · CGPA: 8.01 (2023–Present)
Diploma in E&TC · Government Polytechnic, Nashik · 87.5% (2020–2023)

Let's connect

Pinned Loading

  1. ESP32-Face-Recognition-Door-Lock ESP32-Face-Recognition-Door-Lock Public

    Real-time face recognition door lock on ESP32 with RFID fallback, relay/solenoid control, and latency-optimised camera streaming. Built in Embedded C.

  2. Automated-Hydroponics-IoT Automated-Hydroponics-IoT Public

    MCU-based IoT automation system for hydroponics — ADC sampling, pump control, sensor monitoring, and cloud communication. Hardware-software integration project.

  3. IR-Sensor-Touchless-Water-Tap IR-Sensor-Touchless-Water-Tap Public

    Embedded firmware for IR proximity-based contactless water tap. Real-time signal processing, threshold tuning, and relay actuator control. Written in Embedded C.

  4. Embedded-C-Practice Embedded-C-Practice Public

    C