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Writer's pictureTechnical Tamizha

Arduino RC car without Motor Driver

Updated: Nov 10, 2021

Make an extremely simple Bluetooth controlled Car without motor Driver.


The idea was to make an extremely simple Bluetooth controlled Car without motor Driver,


It can move forward, backward, left, right and stop by giving letter inputs of 'F', 'B', 'L', 'R' and 'S' respectively.


Note: The DC motor can't control directly with Arduino. So we going to use relay to control DC motors.


If you have any trouble comment or contact me in Instagram : @technical_tamizha_official



Components :

Arduino Nano

HC05

2 channel Relay

2 x BO motors & wheels

Car chassis

2x 18650 battery & Holder

Male to Female Jumper Wires





Watch the tutorial video - Tamil - English





  • Fix 4 Motors in the Car chassis.

  • Connect all the 4 Motors as per Circuit diagram.

  • Fix all the components in the Car Chassis and finish the Circuit connection.

  • Upload the program to your Arduino board.

  • Download the RC car controller app from Playstore - Download

  • Set the RC Car command in the app.

  • Forward - F

  • Backward - B

  • Left - L

  • Right - R

  • Stop - S

If you have any trouble comment or contact me in Instagram : @technical_tamizha_official



Circuit Diagram :



Program & Circuit Diagram :




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