Introduction: DIY ! Smartphone Controller Car !

Hii Dear Friend's !!

I hope you are fine... 👌

Today I wiil Show You How To Make Smart Car

It can move forward and backward, left and right, change its speed, turn on / off front lights and also it can horn.
This is a quite simple design robot you can easily build it...

So Lets Start ):

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Parts Required:-

Arduino Uno R3

Acrylic Sheet

DC Motor and Wheel ×4

Motor Driver L293D

Bluetooth module HC-05

Li-ion battery 18650 x



Jumper Wire

Step 1: First Connect the Wires to the Motor

First you have to connect the wires to all the motors

Step 2: Now Fix All the Motors on the Chassis

Now, if you buy a chassis or are made by yourself, then you fix all 4 motors on it by glue gun or with double sided tape.

Step 3: Take Out All the Wires on Top of the Chassis

Now pull all 4 wires upwards as shown in the photo.

Step 4: Attach the Wheel to All Motors

Put The all Wheel In Motor

As shown in the Picture

Step 5: Now Fix the Arduino on the Board With Double Sided Tape

Step 6: Now You Fix the Motor Driver on the Arduino

Now fix the motor driver that you have on top of the arduino.


Step 7: Attach the Motor Cable in Motor Driver

Step 8: HC05 Blutooth Module

HC‐05 module is an easy to use Bluetooth SPP (Serial Port Protocol) module,designed for transparent wireless serial connection setup. ... This serial port bluetooth module is fully qualified Bluetooth V2. 0+EDR (Enhanced Data Rate) 3Mbps Modulation with complete 2.4GHz radio transceiver and baseband.

Step 9: Connect Blutooth Module in Arduino


Bluetooth Module Arduino Uno

Vcc 5v




Step 10: Mount the Blutooth Module

Step 11: Mount Led and Buzzer in the Chasis and Connect to the Arduino

Led Pin To Arduino pin 7

Buzzer Pin To Arduino pin 6

Step 12: Battery With Holder Mount Battery in Holder

Step 13: Programming

Step 14: Complete👌👌

Step 15: Nextpcb


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