1. ULTRASONIC SENSOR (HC-SR04) + LCD DISPLAY + BUZZER

Hardware: Arduino board, 10K ohm potentiometer, 16x2 LCD display, buzzer, ultrasonic sensor (HC-SR04), breadboard and hook-up wires

Software: Arduino IDE

2. SERVO MOTOR + PUSH BUTTONS

Hardware: Arduino board, servo motor, 1K ohm resistors (4), LEDs (2), push buttons (2), breadboard and hook-up wires

Software: Arduino IDE

3. MATLAB + ULTRASONIC SENSOR (HC-SR04) + SERVO MOTOR

Hardware: Arduino board, ultrasonic sensor (HC-SR04), servo motor, 1K ohm resistors (2), LEDs (2), hook-up wires and breadboard

Software: MATLAB

4. PYTHON (pySerial) + DC MOTOR

Hardware: Adafruit motor shield, Arduino board, DC motor, 1K ohm resistors (2), LEDs (2), hook-up wires and breadboard

Software: Arduino IDE, PyCharm

5. GUESSING GAME

Hardware: Arduino board (Mega), 16x2 LCD display, 10K ohm potentiometer, XBee S2 radios (2), Breakout board for XBee module, XBee Explorer USB, LEDs (3), USB cable (A-to-B), jumper wires, 9V battery + connector and breadboard

Software: Arduino IDE, PyCharm, XCTU