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The parts of the Arduino Uno are given
Arduino Uno is a microcontroller for controlling many components
A servo motor is a motor in which we can program just an angle from 0° to 180°.
In this project, we have used a tower pro micro 9g servo. We have to output 5v to the servo. Larger servos may use more voltage than that.
Unlike a DC motor, the servo motor has 3 pins. The brown wire is for GND or negative current, the red wire for positive current, and the yellow wire for PWM which is for outputting the angle.
The servo has two parts- the motor and the horn. The horn is the plastic thingy attached to the shaft of the motor.
The Arduino IDE has a library for Servo Motors. I will explain this in detail while explaining the code.
HC-05 Bluetooth module is a Bluetooth component for your Arduino. It can connect to your Bluetooth device as a master or a slave. It has 6 pins but we will use only 4 pins in our project – GND, 5v, TX, and the RX pin.