Bluetooth Controlled Pick and Place Robotic Arm Car using Arduino

The Bluetooth Controlled Pick and Place Robotic Arm Car is an integrated electromechanical system built around an Arduino Uno microcontroller. At its core, power is supplied by a 12V Li-ion battery, which is safely stepped down using an LM2596 DC-DC buck converter to provide the appropriate voltage levels for the logic and actuation circuitry, managed by a physical power switch. Wireless communication is handled by the HC-05 Bluetooth module, which pairs with a custom Android application to receive user commands. These serial commands are processed by the Arduino Uno, which translates them into specific output signals. For mobility, the Arduino interfaces with the L298N motor driver to regulate the speed and direction of the 2WD drive motors. Concurrently, the system controls three MG90 metal gear servo motors mounted on the laser-cut acrylic robotic arm and chassis. The servos execute precise angular movements for the arm's joints and gripper mechanism, allowing it to pick up and place objects. Jumper wires, a breadboard, and various mechanical fasteners like screws, nuts, and spacers physically secure and electrically connect all components together.