Autonomous+ Bluetooth(HC05) controlled Obstacle avoiding Robotic car using ultrasonic Sensors(HC-SR04)

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Components Required:

1 4WD Chassis
1 Arduino Uno/Nano

1 Arduino Nano Shield
1 Motor Driver
4 Ultrasonic Sensors
2 Lithium Ion cells
1 HC05 Bluetooth module
1 Buzzer

1 SPST switch

1 Mg90s servo motor

APPLICATION:

Arduino IDE



App used for mobile:




Circuit Diagram:


Steps to make this project:


1. Gather components like Arduino, DC geared motors with wheels, 4 Ultrasonic sensors,  1x 4WD chassis, L298N motor driver shield, Nano shield, battery 9 v, switch, Jumper wires and Mg90s servo motor.


2. Take the Acrylic sheets and place all 4 motors with wheels on it and screw them to make a car.


3. Place Ultrasonic sensors on the car (3 at front and 1 on back) and an mg90s servo at front to make one ultrasonic at front look for sideways as shown in the circuit diagram. The back ultrasonic sensor will detect the obstacle from backside of the car.


4. Connect HC05 Bluetooth module with the Arduino as shown in the pin diagram.




5. Connect Arduino and l298N motor shield on the car as  shown in the figure.



7. Do the connections.


8. Upload the code and connect switch with battery and l298N motor driver shield.

Code:


Your project is all set...!!!


Visit my YouTube channel once and see more interesting projects.

https://www.youtube.com/watch?v=Tlb_VRMgckc


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