SunFounder Smart Car Kit V2.0 User manual

Preface
About SunFounder
SunFounder is a technology company focused on Raspberry Pi and Arduino open source
community development. Committed to the promotion of open source culture, we strive to
bring the fun of electronics making to people all around the world and enable everyone to
be a maker. Our products include learning kits, development boards, robots, sensor modules
and development tools. In addition to high quality products, SunFounder also offers video
tutorials to help you build your own project. If you have interest in open source or making
something cool, welcome to join us! Visit www.sunfounder.com for more!
About the Smart Car Kit V2.0 for Arduino
This smart car can go forward and backward, and turn left and right. Controlled by the
SunFounder Uno board, it can realize IR remote control, line following, hand following,
obstacle avoiding, etc.
This car kit is a great platform for you to get started with robotics. After assembling the car
based on the instructions in this booklet, you will learn how to operate the smart car through
6 experiments corresponding to the aforementioned movements. Furthermore, you can
extend more functions or build your own robot based on what's learnt.
Note:
Go to LEARN -> Get Tutorials -> Smart Car Kit V2.0 for Arduino on our website
www.sunfounder.com to view the related code and other materials. Please read this manual
carefully before experiment. You are suggested to follow this guide to assemble the smart
car model and carry out each experiment taking the wiring steps with diagrams. Then, with
the knowledge needed, you may be able to DIY another car!
Free Support
If you have any TECHNICAL questions, add a topic under FORUM section on our
website and we’ll reply as soon as possible.
For NON-TECH questions like order and shipment issues, please send an email to
[e-mail]. You’re also welcomed to share your projects on FORUM.
SunFounder

Contents
Components List ..................................................................................................................... 1
Acrylic Plate ...................................................................................................................... 1
Mechanical Fasteners ..................................................................................................... 2
Power Accessories ........................................................................................................... 3
Electronic Accessories..................................................................................................... 3
Tools.................................................................................................................................... 5
Self-provided Components ............................................................................................ 6
Introduction to the Smart Car V2.0 for Arduino................................................................. 7
Get Started .............................................................................................................................. 8
Arduino .............................................................................................................................. 8
Description.................................................................................................................. 8
Arduino Board –SunFounder Compatible ............................................................ 8
Install Arduino IDE ...................................................................................................... 9
Add Libraries............................................................................................................. 12
Sensor Shield ................................................................................................................... 13
Motor Driver Module...................................................................................................... 15
Step-down DC-DC Converter Module ....................................................................... 17
Switch Module ................................................................................................................ 19
Ultrasonic Module HC-SR04 Distance Sensor............................................................. 20
Line Follower Module..................................................................................................... 21
IR Receiver Module........................................................................................................ 22
Servo................................................................................................................................. 22
Car Assembly ........................................................................................................................ 24
Front Wheels.................................................................................................................... 24
Deflecting Plate + Front Wheels................................................................................... 25
Deflecting Plate + Rocker Arm .................................................................................... 26
Rear Lower Plate + Rear Wheels.................................................................................. 27
Deflecting Top Plate ...................................................................................................... 29
SunFounder

Servo + Chassis + Battery Holder.................................................................................. 30
Adjust the Servo.............................................................................................................. 34
Chassis + Deflecting Plate ............................................................................................ 36
Chassis + Driven Wheels ................................................................................................ 37
IR Receiver + Ultrasonic + Line Follower...................................................................... 40
Other PCB Assembly ...................................................................................................... 41
Circuit Building................................................................................................................ 42
Experiments ........................................................................................................................... 50
Experiment 1 Going Forward and Backward ............................................................ 50
Experiment 2 Turning Right and Left............................................................................ 50
Experiment 3 IR Remote Control.................................................................................. 51
Experiment 4 Line Following ......................................................................................... 52
Experiment 5 Hand Tracking ........................................................................................ 54
Experiment 6 Obstacle Avoidance............................................................................. 54
SunFounder

1
Components List
Acrylic Plate
SunFounder

2
Mechanical Fasteners
Component
Name
Qty.
M1.5*8 Screw
6
M3*12 Countersunk Screw
4
M3*6 Screw
18
M3*8 Screw
40
M3*10 Screw
10
M3*28 Screw
6
M4*10 Screw
8
M4*20 Screw
4
M3*10 Copper Standoff
16
M3*13 Copper Standoff
6
M3*25 Copper Standoff
6
M3*30 Copper Standoff
4
M3*35 Copper Standoff
4
M4*30 Copper Standoff
4
M1.6 Nut
6
M3 Nut
17
M4 Nut
4
M3 Self-locking Nut
2
M4 Self-locking Nut
4
SunFounder

3
F694ZZ Flange Bearing
4
Power Accessories
Component
Name
Qty.
Tower Pro MG995 Micro Servo
1
Gear Motor
2
Driven Wheel
2
Driving Wheel
2
Electronic Accessories
Component
Name
Qty.
SunFounder Uno
1
SunFounder

4
Sensor Shield
1
DC Motor Driver Module
1
Step-down DC-DC
Converter Module
1
Switch Module
1
HC-SR04 Ultrasonic
Module
1
Line Follower Module
1
IR Receiver Module
1
SunFounder

5
IR Remote Controller
1
18650x2 Battery Holder
1
Ribbon (13cm)
2
USB Data Cable (1m)
1
12cm Male-to-Male
Jumper Wire
6
10cm Male-to-Female
Jumper Wire
2
10cm Female-to-Female
Jumper Wire
10
25cm 3-pin Anti-reverse
Cable
1
25cm 4-pin Anti-reverse
Cable
2
Tools
Component
Name
Qty.
Cross Screwdriver
1
Cross Socket Wrench
1
SunFounder

6
Heat Shrink Tube
1
Self-provided Components
The following components are not included in this kit.
Component
Name
Qty.
18650 3.7V Rechargeable Li-
ion Battery
2
Note:
1. You are recommend to use 18650 batteries without a protective board. Otherwise, the
car may be cut power and stop running because of the overcurrent protection of the
protective board.
2. For unprotected batteries, please purchase those with the anode bulged out (as shown
below), so that it can ensure the well connection with the battery holder.
3. If you only have batteries with the protected board, it’s ok. To use it, you can remove the
board on the cathode. But you should operate with care to avoid any hurt; Since the
metal shell is connected to the cathode for most batteries, please don’t use screw driver
or other metal objects to remove, or the battery may get shorted and be burnt if the shell
is connected to the positive pole accidentally.
SunFounder

7
Introduction to the Smart Car V2.0 for Arduino
The smart car is a great platform for you to get started with robotics. According to the
instructions in this manual, you will learn not only how to assemble a robot car but also play
the smart car through 6 experiments. After mastering every experiment, you can extend its
functions or build your own platform based on our smart car platform.
With the modules and sensors added, the smart car can go forward, go backward, and turn
left and right. Besides, it can realize IR remote control, line following, hand tracking, obstacle
avoidance, etc. Many boards and sensors are used in this project such as the sensor shield,
motor driver module, step-down DC-DC converter module, switch module, ultrasonic
ranging module, photosensitive module, obstacle avoidance module, and line follower
module. Different modules are used to achieve corresponding functions. And the car is
controlled by SunFounder Uno board. Next let's first check these modules in detail.
SunFounder