Hover Car Floating Car project- Project for School Students-STEMROBO IMPACT

Hover Car Floating Car project aims to create a hover floating car that navigates on water using motors and fans, detects obstacles using two ultrasonic sensors, and can be controlled via a Bluetooth app. The car includes an alcohol detector to stop the motor when alcohol is detected, an RFID system with a servo motor for secure locking inside the car, and an I2C display to show messages.

Components Required

1. Arduino MEGA – 1
2. Ultrasonic Sensors (e.g., HC-SR04) – 2
3. Bluetooth Module (e.g., HC-05) – 1
4. DC Motors – 4 (2 for propulsion with motor driver, 2 for auxiliary functions with switches)
5. Motor Driver (e.g., L298N) – 1
6. Alcohol Sensor (e.g., MQ-3) – 1
7. RFID Module (e.g., MFRC522) – 1
8. Servo Motor – 1
9. I2C LCD Display – 1
10. Switches – 2 (for controlling auxiliary motors)
11. Breadboard and Jumper Wires – Several
12. Power Supply – For Arduino and motors
13. Hovercraft body – For the floating base

Connections

Arduino to Ultrasonic Sensors:

1. Ultrasonic Sensor 1:
   • Trig to D2
   • Echo to D3
   • VCC to 5V
   • GND to GND
2. Ultrasonic Sensor 2:
   • Trig to D4
   • Echo to D5
   • VCC to 5V
   • GND to GND

Arduino to Bluetooth Module (HC-05/HC-06):

1. Bluetooth TX to Arduino RX (pin 11)
2. Bluetooth RX to Arduino TX (pin 10)
3. Bluetooth VCC to 5V
4. Bluetooth GND to GND

Arduino to Motor Driver (L298N):

1. Motor 1:
   • Connected to Motor A output of L298N
2. Motor 2:
   • Connected to Motor B output of L298N
3. L298N Inputs:
   • IN1 to 6
   • IN2 to 3
   • IN3 to 7
   • IN4 to 2
4. L298N Enable Pins:
   • ENA to D8
   • ENB to D9

Arduino to Alcohol Sensor:

1. AO (Analog Output) to A3
2. VCC to 5V
3. GND to GND

Arduino to RFID Module:

1. SDA to 53
2. SCK to D13
3. MOSI to D11
4. MISO to D12
5. RST to 15
6. VCC to 3.3V
7. GND to GND

Arduino to Servo Motor:

1. Signal to D12
2. VCC to 5V
3. GND to GND

Arduino to I2C Display:

1. SDA to A4
2. SCL to A5
3. VCC to 5V
4. GND to GND

Switches to Additional DC Motors:

1. DC_MOTOR_Switch 1:
   • One terminal to motor 1 positive terminal
   • Others terminal to motor 1 negative terminal and 5V through a pull-down resistor
   • Switch pin to Arduino D14
2. DC_MOTOR_Switch 2:
   • One terminal to motor 2 positive terminals
   • Others terminal to motor 2 negative terminal and 5V through a pull-down resistor
   • Switch pin to Arduino D16

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