Developed an autonomous mobile agricultural robot (Farmotron) engineered for ground-level crop harvesting. Integrated a 50x50x50cm square chassis with a high-speed Delta Robot Arm and a custom pneumatic soft gripper utilizing a vacuum pump and solenoid valve. Implemented a dual-camera vision system using OpenCV on Raspberry Pi 4B for environmental mapping and object detection, coordinated with an Arduino Uno via UART (115200 bps) for real-time inverse kinematics and precise motor actuation (NEMA 17 & geared DC motors). The prototype achieved a 90% detection accuracy and an 85% successful harvesting rate during controlled field trials.

Designed, simulated, and hardware-implemented a high-quality, triple-output regulated linear power supply unit engineered for electronic devices and control circuits. The system reduces and rectifies 220V AC utility power using a 24-0-24V center-tapped transformer and a full-wave bridge rectifier (3A, 1000V) into filtered DC. It branches into three regulated paths utilizing specific voltage regulators and protection circuits: a fixed +12V output (LM7812), a fixed -12V output (LM7912), and an adjustable positive linear DC output ranging from 1.25V to 30.2V (LM317T) controlled via a 10kΩ potentiometer. Performed comprehensive circuit simulation and validation using Proteus, engineered the 2D/3D PCB layouts utilizing EasyEDA, and executed full hardware assembly and testing on a breadboard and dedicated enclosure, incorporating discrete filtering capacitors, LED indicators, heatsinks, and cartridge fuse protection.