Saichandana
Tumma

FPGA-Based Electronic Voting Machine

Designed and implemented a Verilog RTL-based electronic voting controller on a Xilinx Nexys-4 FPGA using Xilinx Vivado. Implemented authentication, candidate selection, vote validation, vote counting, and control logic. The design was verified through RTL simulation and physical FPGA implementation.

Real-Time Embedded Fall Detection System

Developed a real-time fall detection system using an STM32 microcontroller, Embedded C, and an MPU-6050 accelerometer. Implemented a finite-state machine to detect sequential free-fall, impact, and post-fall stillness conditions. Integrated sensor and LCD communication using I2C and GPIO-based alerts.

DSP-Based Interference Mitigation in QPSK

Implemented an end-to-end QPSK communication experiment involving controlled narrowband interference. Used a Communication Trainer Kit for QPSK modulation/demodulation, a function generator for interference injection, and a Digital Storage Oscilloscope (DSO) for signal acquisition and measurements. MATLAB was used for spectral analysis, digital filtering, and BER evaluation.

Individual contribution: DSO-based signal acquisition, signal measurements, technical documentation, and testing and final demonstration preparation as part of the team.

Analog Circuit Design & IC Characterization

Performed analog circuit design and characterization experiments using Cadence, covering MOSFET characteristics, current mirrors, common-gate amplifiers, cascode amplifiers, and single-stage OTA analysis.