Pruthvi pruthvi828

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║  PRUTHVI JADHAV // HARDWARE, RF & DIGITAL FABRICATION SYSTEMS ENGINEER                       ║
║  Core: ESP32 Architecture · Antenna & RF Design · KiCad PCB Layout · 3D Printing · Laser Cut ║
║  Location: India  ·  Telemetry: Active  ·  Open-Source Scout: Online (04:30 UTC Daily)       ║
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🛰️ Hardware Engineering & Fabrication Pillars

⚡ 1. ESP32 & Embedded Microcontroller Systems

Microcontroller Core: Deep expertise in ESP32 (ESP32-DEVKITC-32U, Xtensa dual-core 240MHz), STM32, and Arduino.
Firmware & RTOS: Deterministic real-time multitasking with FreeRTOS, hardware timers, DMA, and ultra-low-power deep sleep cycles.
Bus Protocols: Hardware UART, high-speed SPI, I2C, I2S audio streaming, and ADC sensor conditioning.
OTA & Diagnostics: Over-the-air firmware deployment, serial debugging, and logic analyzer bus decoding.

📡 2. RF Engineering, Antennas & Wireless

Antenna Design: 2.4 GHz PCB trace antennas (inverted-F, meandered IFA) and external IPEX/U.FL antenna matching networks.
RF Trace Geometry: 50Ω controlled-impedance coplanar waveguides with ground and microstrip routing.
Signal Integrity: Minimizing return loss (S11), impedance discontinuities, and RF harmonics.
EMI/EMC Shielding: Continuous ground stitching vias, isolation fences, and noise-immune power decoupling.

📐 3. Custom PCB Design & Manufacturing (KiCad)

EDA Toolchain: Schematic capture, multi-layer routing, design rule checks (DRC), and 3D modeling in KiCad.
Board Architecture: Star grounding, analog/digital ground plane partitioning, thermal via heatsinks, and copper pours.
Design for Manufacturing (DFM): Complete Gerber, drill, and BOM generation for automated SMD (0603/0805, QFN) assembly.
Audio & Power Stages: Dedicated hardware synthesis (DFR0299), transient voltage suppression (TVS), and LDO regulation.

🖨️ 4. Digital Fabrication & Rapid Prototyping

3D Printing (Additive): Custom snap-fit enclosures, sensor brackets, and structural drone mounts engineered for FDM (PLA/PETG/ABS).
Laser Cutting (Subtractive): Precision vector kerf compensation, interlocking tabbed joints, and acrylic/MDF robotic chassis.
Mechanical CAD: 2D/3D CAD drafting (AutoCAD, Fusion 360) ensuring 0.1mm tolerance stack-up with internal PCBs.
Hardware-Software Integration: Building rugged physical prototypes from raw stock to working embedded products.

🤖 Autonomous Robotics & Low-Level Internals

IIT Bombay e-Yantra (Echo-Balancer): Competed in the e-Yantra Robotics Competition (eYRC), developing an autonomous 2-wheel inverted-pendulum self-balancing robot utilizing closed-loop PID control and real-time IMU sensor fusion.
Autonomous UAV & Drone Dynamics: Multi-rotor quadcopter airframe assembly, ESC brushless motor timing, and radio-telemetry links.
Low-Level Android ADB & DSP: Low-level SurfaceFlinger display pinning (120Hz continuous refresh rate), real-time optical PPG biometric pulse sensing via Camera2, and 120 FPS audio FFT spectrum analysis.

🚀 Flagship Engineering Portfolio

Project	Domain	Technologies	Impact & Engineering Highlights
CyberDesk Phone Suite	Systems & Hardware Bridge	`FastAPI` `ADB` `WebAudio FFT` `Biometrics`	Real-time low-latency Android hardware control, 120Hz audio DSP visualizer, optical PPG heart monitor, and autonomous safe OSS scout.
TARS Embedded Suite	Embedded Hardware & AI	`KiCad` `ESP32-32U` `DFPlayer` `3D Print`	Custom 2-layer KiCad PCB, ESP32-32U core, hardware speech synthesis, and custom 3D printed enclosure.
Echo-Balancer	Robotics & Dynamics	`C++` `PID` `Laser Cut` `IMU Fusion`	IIT Bombay eYRC robotics competition entry; inverted-pendulum self-balancing dynamics with laser-cut chassis.
Phone Clean & Diagnostics	Android Internals / DSP	`FastAPI` `ADB Shell` `WebAudio FFT` `PPG`	Low-level 120Hz display pinning, optical photoplethysmography (PPG) biometrics, and acoustic ejection.
DR-DOOM Workshop	Systems Automation	`PowerShell` `Python` `CLI`	Modular system automation framework recognized by the community (6★ Stars, 11 Forks).
Canva-Automate	Headless Pipeline	`Python` `Selenium` `PIL`	Automated headless graphic design processing, batch certificate creation, and asset exports.
UniStay Platform	Full-Stack Systems	`TypeScript` `React` `Tailwind` `REST`	Full-stack platform streamlining verified student housing booking and inventory management.

🛠️ Hardware & Maker Arsenal

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_{"Bridging silicon, RF acoustics, and physical fabrication into intelligent machines." — Pruthvi Jadhav}

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