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  • Bengaluru
  • 01:09 (UTC -12:00)
  • LinkedIn in/nalbuga

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ADuetrohit/README.md
Rohit R. Nalbuga — PCB, Embedded & RF Designer

Typing SVG

Profile Views LinkedIn Email Location



Living board — MCU powering up with power, USB, RF and analog blocks

———

🚀 About Me

board_t rohit = {
    .role      = "PCB & Embedded Systems Designer",
    .degree    = "B.Tech ExTC, expected 2027",
    .does      = "schematic -> layout -> firmware, one hand off",
    .domains   = { "RF", "biomedical", "robotics" },
    .learning  = "antenna & RF/microwave design",
};
  • 🔩 I take PCBs from schematic to fabrication-ready in Altium — 2-to-6-layer, controlled-impedance boards — and write the Embedded C firmware that runs on them
  • 🏆 My boards have been recognized at IIT (BHU) Varanasi Technex 2026 and IIT Bombay Techfest 2026
  • 🔭 Currently building a behind-ear biosensing wearable and a 6-in-1 biopotential sensor
  • 💬 Ask me about PCB stackups, controlled impedance, or biopotential front-ends

⚡ By the Numbers

🔩 5 📐 6-layer ⚡ 6-in-1 🎯 50 Ω / 90 Ω 🏅 IIT BHU
custom boards designed deepest stackup biopotential sensor controlled impedance Technex 2026 recognition

⚙️ From Schematic to Bring-Up

I own the whole chain — the board and the firmware on it.

%%{init: {'theme':'base','themeVariables':{'primaryColor':'#12324c','primaryTextColor':'#eaf6f4','primaryBorderColor':'#2f6b8a','lineColor':'#5fd3c4','fontFamily':'monospace','fontSize':'14px'}}}%%
flowchart LR
    A([ Schematic ]) --> B([ PCB Layout ])
    B --> C([ Controlled-Z<br/>+ DFM rules ])
    C --> D([ Fabrication ])
    D --> E([ Bring-up ])
    E --> F([ Embedded C<br/>firmware ])
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🛠️ Tech Arsenal

Domain Stack
PCB & EDA Altium KiCad
MCUs & Silicon STM32 Nordic ESP32 Arduino Analog Devices Renesas NXP
Firmware Embedded C C++ I2C/SPI/UART
Signal & RF Controlled Impedance RF

———

🔬 Projects

⚠️ Most design files are private (in development / client work). Happy to walk through any on request.

◆ Chordy — controlled-impedance ESP32-S3 board
4-layer · Altium · 50 Ω CPWG / 90 Ω USB, DFM to fab spec

◆ VELA — behind-ear sleep-tracking wearable
nRF5340 · 6-layer puck + 4-layer case · optical PPG + bio-impedance

◆ 6-in-1 EXG — biopotential sensor
TI TL074 · 2-layer · one front-end → ECG/EMG/EOG/EEG/EGG/ENG

◆ VEERA — multi-sensor IoT & robotics board
ESP32 + Arduino UNO · 2-layer · dual motor drivers · 15+ peripherals

◆ KARA_V1 — dual-MCU development board
STM32 + ESP · 4-layer · Altium

◆ AERIS — air-quality monitor
ESP32 · MQ sensors, calibration + filtering · Technex 2026 (IIT BHU) recognition

◆ High-Speed Line Follower — PID robot
sensor-array line tracking · Technoxian World Cup

◆ Internship builds — Karmic Nexus
PIC18F47K42 dev board · VC02 smart-farming · EV↔petrol switching circuit

🏆 Achievements & Roles

  • 🥇 Recognition (Hardware category) — Technex 2026, IIT (BHU) Varanasi, for the AERIS project
  • 🏅 Circuit Mania Winner ×2 (JDCOEM, 2025 & 2026) · 2nd Place, Circuit Competition (TGPCET)
  • 👥 Technical Head, e-Yantra Robotics Club
  • 📜 Firmware Engineering — L&T EduTech

———

📫 Let's Connect

LinkedIn Email

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  1. Battery-EKF-SOC-MATLAB Battery-EKF-SOC-MATLAB Public

    Extended Kalman Filter for Li-ion battery state-of-charge estimation in base MATLAB: 1-RC Thevenin model, OCV-based correction, benchmarked against Coulomb counting (0.4% vs 22% RMSE).

    MATLAB

  2. DesCriptor DesCriptor Public

    Component research for PCB design: describe a part, answer only the questions that need an engineer, get one recommendation verified against live Digi-Key stock and lifecycle.

    Python

  3. smart-gate smart-gate Public

    Smart Gate: an ESP32 automatic vehicle barrier (Wokwi) + a Blockly custom block + a no-backend site-management dashboard.

    JavaScript

  4. veera-pre-kit- veera-pre-kit- Public

    pre coded kit bassed on PIC based MCU