V2N AI Demo: Autonomous Car on HB-IIoT – Setup & Assembly

Open

Introduction

This document describes the mechanical and electrical assembly of the autonomous vehicle drive system.
The guide covers chassis preparation, DC motor installation, encoder wiring, and Arduino-based motor control using a dedicated motor shield.

Revision and Notes

Kit Contents

V2N

Open

Open

V2N EVK

V3 Robot Car DIY Kit

order link: https://a.aliexpress.com/_c4FHlaaR

Verify that all components are available before starting the assembly process

Part Name	Link	Picture

Part Name	Link	Picture
4 DC geared motors with integrated AB encoders	https://a.aliexpress.com/_c4FHlaaR	Open
Vehicle chassis with pre-drilled motor mounting holes (M1–M4)		Open
Wheels compatible with 6 mm D-shaft		Open
Motor mounting screws		Open
Arduino UNO		Open
Motor Shield V5.3		Open
4 Encoder cables (PH2.0)		Open

RPLIDAR

Part Name	Link	Picture

Part Name	Link	Picture
RPLIDAR A1M8-R6	https://a.aliexpress.com/_c34tAd51	Open

Screen

Camera

Part Name	Link	Picture

Part Name	Link	Picture
Logitech HD Pro Webcam C920	https://www.logitech.com/en-ch/shop/p/c920-pro-hd-webcam	Open

Battery

Mechanical Components

Part Name	Link	Picture

Part Name	Link	Picture
Spacers:M3x100mmx5pcs, M3x80,M3x70	https://a.aliexpress.com/_c4tcjSs7	Open
M3 Sscews set: option 2510, or just 4pc M3x10mm screws	https://a.aliexpress.com/_c3I0472T	Open
	Open
	Open

Mechanical Assembly

Motor Placement on Chassis

Open

The chassis supports four motors positioned symmetrically as shown below.

Open

Ensure that the motor shafts face outward and the gearboxes face inward.

Mounting Procedure

Assembling The Car

Connect the encoder cable connector to the designated connector at the rear of the motor until a click is felt, indicating a fully seated connection.
Verify that the connector is firmly attached and not loose.
Repeat this procedure for all four motors.

Open

Install the front swing arm bracket. Secure it using 3×6 screws.

Install the small brackets. Make sure to pay attention to the top and bottom orientation. Do not install them upside down. Fix the shaft in place: Use the retaining screw to secure the shaft from the inside Press and hold the through column while installing Install the motor on the opposite side as well. Ensure that the small bracket on that side is facing the correct direction. Secure the assembly using M4 screws.

Do not tighten the screws fully at this stage — they will need to be adjusted later.

Open

secure the front swing arm to the bottom plate.

Secure the two additional motors to the rear brackets. Then attach the brackets to the bottom plate.

Attach the Arduino board to the car chassis using the designated screws.

Attach it according to the following images:

Open

Connect the Motor Shield V5.3 to the Arduino Uno, and then connect the encoder cables and the power cables to the board according to the following image

Open

Attach the top plate using the appropriate screws.
Install the wheels in their positions (pay attention to the orientation of the wheels).

RPLIDAR Connection

Secure the LiDAR sensor to the designated mounting bracket using M2.5×14 screws.

Place the EVKIT V2N in the designated holes on the bracket.
Then, attach the bracket to the vehicle chassis using spacers and fasten it with M3×14 screws, according to the position and orientation shown in the image.

Open

Open

Connect the RPLIDAR to the EVKIT using the designated USB cable.

Connect the Arduino Uno to the EVKIT using the designated cable.

Connect the camera to the EVKIT using a USB cable.

Connect the batteries to the EVKIT and to the Motor Shield V5.3.

Make sure not to connect the batteries to the Arduino Uno.

Software Setup

Arduino

Cable setup and prerequisites

• USB cable

• git

• python3

• platformio (CLI)

Flashing Arduino Code

Clone the Repository:

Verify Project Environment:

Ensure that a valid environment exists (e.g. uno).

Connect the Board and Identify the Port

Connect the Arduino UNO via USB, then run:

Note the serial port (e.g. /dev/ttyACM0).

Build:

Upload (Flash):

Documentation