# Circuit Diagram

The entire Circuit will be as below:

![](https://1854716099-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LskXJjPT2bXMIodrtZq%2F-MRv1R-o1zGlxNjfl9On%2F-MRv1Z1IqB_aLwHgBUHa%2Ffritzing.png?alt=media\&token=4db4283c-75b5-42fc-989d-fcfd3589370e)

The 2 Left motors will connect to Motor A on the driver board

The 2 Right motors will connect to Motor B on the driver board

A 3 X 18650 battery pack **positive** will be connect to the **VSS / 12V** terminal on the driver board and the **negative** will be connected to the **GND** terminal on the driver board.

The Arduino board will be powered by the same 3 x 18650 battery pack. 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

The Motor driver will be connected to the Arduino board as per below connections:

* 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

The bluetooth module will be connected to the Arduino board as per below connections:

* Bluetooth VCC -> 5v on Arduino Board
* Bluetooth GND -> GND on Arduino Board
* Bluetooth TX > PIN RX on Arduino Board
* Bluetooth RX -> PIN TX on Arduino Board