Electronics & Communication Engineering in Bangalore

A low-power wireless sensor network for precision agriculture, with solar-charged nodes measuring soil moisture, temperature, humidity and pH at 500m intervals and transmitting data to a central LoRaWAN gateway. A Node-RED dashboard visualises field conditions and triggers irrigation solenoids when thresholds are crossed.

A quadcopter running ArduPilot firmware with an onboard Raspberry Pi 4 processing depth data from a stereo camera to detect and route around obstacles in real time. The drone maintains a pre-programmed waypoint mission while the avoidance layer overrides individual waypoints when obstacles are detected within 2 metres.

A wearable multi-parameter monitor measuring SpO2, heart rate, skin temperature and body position, transmitting readings via BLE to a gateway that pushes data to a cloud dashboard with anomaly alerts. The device runs on a CR2032 cell for 72 hours and uses a custom flexible PCB for the wrist-worn sensor pod.

A three-phase energy meter with a current transformer front-end, ATmega328P processing, and a 433MHz RF link to a central display unit — no wired communication required. The meter logs kWh consumption per phase, detects power factor deviation and sends tamper alerts when the CT clamp is removed.

A 5-DOF robotic arm that mirrors hand and wrist movements captured by an MPU6050 IMU glove in real time. Flex sensors on each finger translate grip gestures to the arm's end-effector, and a wireless nRF24L01 link between glove and arm controller provides 10ms command latency at 10 metres range.

An 8-bit Arithmetic Logic Unit implemented in Verilog with full combinational and sequential paths, synthesised and placed on a Basys 3 FPGA. The design targets minimum dynamic power through clock gating and operand isolation, with power consumption measured via the Xilinx Power Analyser and compared against a baseline RTL implementation.

A time-domain reflectometry (TDR) instrument that injects a calibrated pulse into a cable under test and measures the reflected waveform to calculate fault distance within ±1% accuracy. The system covers cable lengths from 10m to 2km and displays fault type (open, short, partial) and distance on an LCD.

A motorcycle helmet with embedded electronics that detects impact events via a 3-axis accelerometer, determines if the rider has been immobilised, and automatically sends an emergency SMS with GPS coordinates to pre-registered contacts. A BLE link to the rider's phone is used for configuration and ride logging.

A bidirectional visible-light communication system using high-speed LED drivers and photodiode receivers to transmit audio and text data at 1 Mbps over a 3-metre optical link. The system demonstrates OOK modulation, demonstrates sensitivity to ambient light interference, and measures BER as a function of link distance.

An ultrasonic-based parking assistance system with four HC-SR04 sensors covering the vehicle perimeter, an STM32 controller processing sensor fusion data, and an in-cabin display showing obstacle proximity with audio beep frequency proportional to distance. Calibrated to match OEM ADAS response curves.

An FPGA-based DSP demonstrator implementing FIR and IIR filters, FFT, and a digital oscilloscope function on a Xilinx Artix-7 board. Students interact with the kit via a PC GUI that adjusts filter coefficients in real time and displays the frequency response, making abstract DSP concepts immediately observable.

A multi-node body area network with three sensor nodes (ECG, PPG, activity) communicating over IEEE 802.15.6 compatible BLE mesh to a coordinator node that aggregates data and streams to a hospital information system. The system demonstrates TDMA scheduling, power management and data encryption at the coordinator.