> For the complete documentation index, see [llms.txt](https://docs.kidscode.co.za/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.kidscode.co.za/arduino-robot-car/arduino-bluetooth-car/assembly-the-car.md).

# Assembly the Car

## Solder the motors

Solder each motor with a black and a red wire and attach them with the chassis.

![](/files/-MQ3YP_U33Y6vERbxWON)

## Attach the Motors

Attached the motors to the base of the car. Join the left side motor wires together as: **red wire --> red wire** and **black wire --> black wire,** similarly join the motors on right side together as: **red wire --> red wire** and **black wire --> black wire**

![](/files/-MQ3YWs__YQTzIpUByj6)

## Attached the Wheels

Add the Wheels to the motors

![](/files/-MQ3Z0Y9sPas3Kya28Ga)

![](/files/-MQ3Z4y2c9GO8VZV9M5n)

You can also view the video below as a guide

{% embed url="<https://youtu.be/0YUQ4s5XZqY?list=PLVcrH7rfVz6vqat1z8NBMmJgz5W39i3GY>" %}

## Connect the Motor Driver

The Motor driver will be the **back** of the car. The Motor driver will have two connectors, one for Motor A and another for Motor B.

Looking at the car from behind, connect the **Left motors** to **Motor A** and the **Left motors** to **Motor B.**&#x20;

Remember that the two left motors will connect to a single Motor A and two right Motors will connect to a single Motor B on the motor driver

{% hint style="info" %}
Remember that the two left motors will connect to a single Motor A and two right Motors will connect to a single Motor B on the motor driver
{% endhint %}

![](/files/-MQ3_fncDlXcy_eLr_Sq)

![](/files/-MQ3_jLlskUhfU5hiqIg)

![](/files/-MQ3_m3MU0zQRFy7JA5Q)

## Connect the Motor Driver to the Arduino

![](/files/-MQ3_J8o6_eKydScCz-Y)

![](/files/-MQ3_NjwC-5ISDdTENZp)

![](/files/-MQ3_S1y2o7H8v7CMrUu)

Connect the jumper wires as below:

**Please remove the jumper from ENA and ENB on the motor driver**

* Motor driver ENA -> PIN 9 on Arduino Board
* Motor driver IN1 -> PIN 8 on Arduino Board
* Motor driver IN2 -> PIN 7 on Arduino Board
* Motor driver ENB -> PIN 3 on Arduino Board
* Motor driver IN3 -> PIN 5 on Arduino Board
* Motor driver IN4 -> PIN 4 on Arduino Board

Connect the battery pack **positive** wire to the **VCC / 12V** terminal of the motor driver

Connect the battery pack **negative** battery to the **GND** terminal of the motor driver

Connect a jumper from the **VSS / 12v** terminal on the motor board to the **VIN** on the Arduino board. Connect another jumper from the **GND** on the motor driver to **GND** on the Arduino board

## Connect the Bluetooth Module to Arduino

Connect the Bluetooth module as shown below

![](/files/-MQ3gHwoWBvJyYq9QdFh)

![](/files/-MQ3gOns-Rnc7QgizArC)

Now you are done with the car assembly. Next you need to upload the code to the Arduino board, download the App and test.