Qbot User Manual

Qbot%20User%20Manual%20

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Qbot Robot Car Kit
User Manual

Warming tips
1. Please charge the battery in time if you find Qbot running slow and the indicator is
dimming.
2. Infrared obstacle avoidance sensor, line tracking sensor are sensitive to infrared
interference, they might not work in strong light.
3. The ultrasonic sensor must be installed according to the instructions. Incorrect
installation can cause damage to the ultrasonic sensor.
4. When using infrared remote control, there should be no object between the remote
controller and the receiver.
5. Don’t let metal objects touch the circuit board and the electronic component on
circuit board, otherwise the product may be damaged.
6. The product contains small parts, do not let children eat by mistake.
7. Please use the included charger to charge the battery, otherwise it may cause a fire
and explosion.
8. Do not short-circuit, dismantle, destroy the battery or throw the battery into the fire,
otherwise it may cause dangerous.
9. Pay attention when connecting the computer: the switch is turned off, the USB is
not recognized and cannot be connected, and then the switch is still not connected.
You can only open the switch first, then plug in the USB to connect.

Catalog
Warming tips.................................................................................................................. 1
Catalog.....................................................................................................................1
1 Introduction................................................................................................................. 1
1.1 Product introduction.......................................................................................... 1
1.2 Features............................................................................................................. 1
2 Main assembly.............................................................................................................2
2.1 Product list.........................................................................................................2
2.2 Product parameters............................................................................................ 3
2.3 Components.......................................................................................................4
2.4 Overall component display................................................................................6
3 Installation and Operation........................................................................................... 7
3.1 Overview........................................................................................................... 7
3.2 Mobile phone APP............................................................................................ 8
3.2.1 Download Mobile APP.......................................................................... 8
3.2.2 Mobile phone APP to control the Qbot................................................. 9
3.3 Infrared remote controller............................................................................... 16
3.4 WeMake Software...........................................................................................17
3.4.1 What’s WeMake Software................................................................... 17
3.4.2 How to install WeMake on your computer.......................................... 17
3.4.3 How to connect Qbot to WeMake.........................................................20
3.4.4 Install the driver.....................................................................................20
3.4.5 How to use WeMake to install firmware...............................................23
4 Troubleshooting.........................................................................................................39
5 The Historical version of the user manual.................................................................41

Introduction

1.1 Product introduction

LewanSoul-Qbot is an educational robot based on graphical programming and
Arduino platform. This robot is perfect for learning STEAM and robotic knowledge.
Perfect choice for robot lovers and beginners to learn robotics, electronics and
programming. Beside, Qbot is a Smart Robot Car Kit with Ultrasonic Sensor, Light
Sensor, Line Tracking Sensor, OLED Display Screen, Bluetooth Module, Infrared
Remote Control ( Receiver), Free Mobile APP for Arduino. The whole assembly
process of Qbot only takes 2 minutes, so that you are no longer bothered by the
tedious assembly. The holes in the robot can be compatible with the LEGO bricks and
you can extend its function yourself, this means that Qbot will have infinite
possibilities. ( which means that Qbot will have infinite possibilities for you to
discover. )
Hope that Qbot can be a good partner in your study and life!

1.2 Features

A
Various electronic modules: Integrated infrared, line tracking, dot matrix,
ultrasonic, RGB light ( Indicator), Bluetooth 4.0 module and more than 10 electronic
modules.
B Quick assembly: The whole assembly process of Qbot only takes 2 minutes.
C Compatible with LEGO bricks: It can be used to expand the compatibility( by
using LEGO) between the hole position and LEGO bricks.
D Various ways of mobile phone control: We provide customers with a mobile APP,
there are three working modes: Gravity mode, ( Line-drawing control mode) drawing
line mode and stick rocker mode to enhance the interest and experience of Qbot.
( help you enjoy much fun from Qbot)
E Support Scratch programming: It allows us to learn to program and control the
robot quickly. ( Easy programming way, help you quick to learn)
F Plenty of learning material and gameplay: Rich in courses and play ways; We
provide users with 16 kinds of Qbot gameplay, each of them has a very detailed video
tutorial.

Main assembly

2.1 Product list
Motor driven board

Upper plate

Ultrasonic sensor

Charger

Lithium battery

Infrared remote control

Screwdriver

Screw and copper pillar kit

USB cable

2.2 Product parameters
Net Weight

About 0.308 pounds

Material

Fiberglass

Bluetooth module

Support

Package Dimensions

9.8 x 6.2 x 2.4 inches

Programming software

WeMake(based on Scrach2.0)
Windows Arduino IDE Support

Input

Edge sensor, Button module, Line
tracking sensor, Ultrasonic sensor,
Infrared receiving module

Output

Buzzer, RGB lights, two motor ports

Communication interface

USB, Bluetooth

Microprocessor

Arduino UNO

Power supply

One 3.7V 600mAh Lithium battery

Diameter

85mm

2.3 Components
Name of Component

Picture

Quantity

Upper Plate

Motor Driven board

Ultrasonic sensor

Infrared remote

controller

Copper pillars and
screws

Several

Lithium battery

Flat Cable

Charger

2.4 Overall component display

Tips:The Function Button is the button that If you click it, Qbot will run the built-in
program on it.

3.1 Overview

Installation and Operation

1. Different functions require different code；
2. The default installation is Bluetooth and infrared firmware so that you can use the
cell phone and infrared remote control to control the Qbot directly. There are 16 kinds
of gameplay code in this product, and bluetooth and infrared firmware are one of
them. There is only one firmware on the Qbot at the same time. If you upload other
firmware (such as Gesture control code) to Qbot, the mobile APP and infrared remote
control cannot be used；
3. If you want to control the Qbot through using Bluetooth module or infrared remote
controller, the programs that we need to download first are the same. You can refer to
the above link or QR code；
4. Different parts of Qbot have different functions, you can explore more fun from it；
5. When your phone fails to connect to Qbot, please check out whether the Bluetooth
firmware has been already downloaded or not.
Here are the icon and link and QR code(Table 1):
Table 1
Icon

Link
http://bit.ly/2wCKlz6

QR code
h

6. Here are the link and QR code concerning YouTube and Dropbox of Qbot. (Table
2)
Table 2
Learning video
Link

http://bit.ly/2xKMgBl

QR code

Software, mobile app,
code, etc.
http://bit.ly/2wCKlz6

3.2 Mobile phone APP

3.2.1 Download Mobile APP
Types
Link

Table 3
Android System
http://bit.ly/2EITSEJ

iOS System
https://apple.co/2CxiAYw

QR code

(1) You can open the Installation package and download it on your mobile
phone(Refer to Table 2). (And you can also refer to the table above )
(2) If you open the Installation package you can find the Mobile App(Android Only)
Note:
1. If your phone system is Android, this file prepares for it. If it is Apple system, you
can search for "Qbot Lobot" in APP Store and download it.(Refer to Table 3)
2. Qbot Android app released version 1.4, the modification information is as follows:
a. Repair Bluetooth connection unconnected after accidental disconnection;
b. Optimize part of the interface.
The following figure is a software diagram of the an Android system and an iOS
system respectively.

3.2.2 Mobile phone APP to control the Qbot
(1)First turn on the switch of the Qbot

(2)Then open the Qbot APP that have been download on your mobile phone.

(3)After connecting the Bluetooth,you can start controlling your Qbot.

Note:
1. The automatic search function of Bluetooth is closed by default.
2. If you click the Auto scan button, it will automatically scan Bluetooth itself;
3. If you click the icon in the lower right corner,you will see the picture following:

If the connection fails, restart the APP and reconnect several times. (Please remember
using the Bluetooth inside the phone app rather than the one on your phone system.)
If you connect to the Qbot successfully, you can do the following.
When you click the Qbot,you will see picture as following:

Here is the introduction of each icon:
Table 4
Icon

Meaning

Icon

Meaning

Turn
on
the
Bluetooth switch.

Once you touch the
button that picture
shows, the light on
the upper plate will
shine.

Distance
value
between
the
ultrasonic
sensor
and the obstacle are
shown through this
icon.

It means that the
lights on the Motor
Driven board are
illuminated
randomly.

Stick mode: this
mini bubble uses to
control
the
movement of Qbot

Make
alarm.

Change to gravity
mode.

the

Qbot

First, you may notice the Numbers on the Ultrasonic section. This number represents
the distance between the Qbot and the object in front of it. The distance will change as
the way it moves.

Then, you can click the Gravity control icon, you can control the movement of Qbot
by moving your mobile phone. In fact, we offer two modes to control the movement
of Qbot, and the other is stick mode, which means you can operate the Qbot through
the virtual button on your phone.

After that, if you click the Random light, the lights on the Motor Driven board are
illuminated randomly. If you click on the third icon, the light on the Upper Plate will
light up.
Last, if you click on the fourth icon, the Qbot will alarm.
If you click the Dawn line icon, you will see picture as following:

You can draw any route you want Qbot in the gray part, then click Play this icon, then
Qbot will follow the route you draw, and you can clear the previous route (click Clear
screen icon). As is shown in the picture, if you draw a heart-shape in the gray part, the
Qbot will go around the shapes that you draw.
Here is the function of the icon:
Clear the route you
draw on the screen.
Let Qbot to follow
the route you have
drawn.

When you press
this button, you can
stop the Qbot at
any time.

3.3 Infrared remote controller

Our package contains infrared remote controller, you can use in combination with
Qbot.

Hardware principle of infrared remote controller: Infrared light is a light that our
human eye can not see. We regard the infrared remote controller as a flashlight that
can emit infrared light, and the infrared receiver module as an eye that can only see
the infrared light.

When we press button 2 on the remote controller. Qbot will move forward and if we
press button 8, it will move backward. Pressing button 4 means turning left, button 6
means turning right. (Refer to 3.4.6 Gameplay and Its Corresponding Programs)

3.4 WeMake Software

3.4.1 What’s WeMake Software

WeMake is a graphical programming tool based on Scratch 2.0, which is developed
by our company. We can use this software to control. Through WeMake
programming we can achieve the interaction between software and the physical world
to make QBot do corresponding response according to the changes in the environment.
WeMake's simple operability makes it possible for everyone to build their own
intelligent robots without having to learn esoteric electronic knowledge.

3.4.2 How to install WeMake on your computer
You can download the installation file of WeMake.
Table 5
Icon

link
http://bit.ly/2wCKlz6

Open installation file and select installation path.
Click “next”

Select destination location.
The installer will install WeMake into the following folder.
17

QR code

Click next to continue, if you want to select other folder, click”browse”.

The installer is now ready to install WeMake into your computer.
Click install to continue with this installer, if you want to review or change the
settings, please click “back”.
18

Installing.
The installer is installing WeMake into your computer, please wait.

The WeMake installation wizard finishes.
The installer has installed WeMake into your computer, this application can be run by
selecting the installed shortcut.
Click “finish” exit the installer.
Only after QBot is connected to WeMake, we can use WeMake to program QBot.
19

3.4.3 How to connect Qbot to WeMake

First, we need to connect Qbot to computer by using Micro USB cable, and open
WeMake software. Then, you can edit some programs by WeMake.

3.4.4 Install the driver

Use the WeMake at the first time, you should install the driver.
Select the corresponding path in Menu> Connect> Install Driver

Open the driver installation interface

Waiting for installation.
Next select the corresponding COM port in Menu> Boards> Qbot

Click COM6 to display Connected

Different computers may have different ports(don’t choose COM1), you can open the
DeviceManager, expand "Ports (COM & LPT) .

3.4.5 How to use WeMake to install firmware
There are two ways for controlling the Qbot, one is using Infrared remote controller
and the other one is through mobile phone App. Different functions require different
firmware to control. If you use the first way to control the Qbot you can control it
directly by the Infrared remote control, because the default state of Qbot that the
firmware we have installed. If you use the second way you should install the firmware
by yourself.
After connecting the Qbot, then find the firmware that of mobile phone App control,
and open it.

Note:
1. The default state is infrared and Bluetooth firmware.
2. The infrared and Bluetooth functions are by default.
Select the corresponding port in Menu> Edit> Ardunio mode.

Then click the “ Upload to Ardunio”.

When it appears Upload finish, you can start control your Qbot with mobile phone.

3.4.6 Gameplay and Its Corresponding Programs

You can get gameplay and its corresponding programs on the following.Here is the
icon, link and QR code:
Table 6
Icon

link

QR code

http://bit.ly/2wCKlz6

Here are gameplay and its corresponding programs:
1. Hardware principle of buzzer
A buzzer can send out various tunes of different beats.

Software Command
Script Type

Command

Comment

Robots

Get the distance measured
ultrasonic module

Robots

The playing tone is 1/8 of the C4
beat

Create a target: Ultrasonic detects the distance automatically,the closer the distance is,
the higher the alarm frequency of the buzzer. When only 5cm from the wall is
detected, Qbot stops and the buzzer make long sound of beep which indicates that the
parking is completed.
26

2. Infrared remote control
Script Type

Command

Comment

Robot Module

To determine whether a button on
the infrared remote controller has
been pressed or not.

Robot Module

To determine whether a button on
the infrared remote controller has
been long pressed.

Create a Target: Qbot controlled by infrared remote controller
Realization: When we press button 2 on the remote controller. Qbot will move
forward and if we press button 8, it will move backward. Pressing button 4 means
turning left, button 6 means turning right.
It is noted that the procedures corresponding to both Bluetooth and infrared remote
control are the same.

3. Avoid the edge
In this episode, we continue to use the line tracking sensor to achieve some other play.
This also allows everyone to know more applications of line tracking sensor in the
actual scene.
Software Command:
Script Type

Command

Comment

Robots

Get the status of Edge sensor 1

Robots

Get the status of Edge sensor 2

Create a Target: Our map is a large black runway, and Qbot can be placed inside the
runway. After turning on the switch, it will run when it touches the black line. That
means the Qbot will continue to move within the black runway.
Realization: We can monitor whether Qbot touch the black line or not through line
tracking sensor so as to control the movement of Qbot.

4. Follow the Object
In this episode, we continue to use ultrasonic sensor to perform some other gameplay.
This also allows you to know more about applications of ultrasonic sensor.
Software Command:
Script Type

Command

Comment

Robots

Get the distance measured by the
ultrasonic wave

Create a Target: The ultrasonic sensor measures the distance between the Qbot and
the obstacle. If the distance is less than 15 cm, Qbot will move backward, the smaller
the distance, the faster the speed. If the distance is greater than 15 cm, Obot will move
forward, the greater the distance, the faster the speed. Therefore, the distance between
Qbot and the obstacle is about 15cm.

5. Tracking
Hardware principle of obstacle avoidance sensor: The basic principle of the obstacle
avoidance sensor and the working principle of the tracking sensor are basically the
same. If there is no obstacle in a certain range, the emitted infrared rays gradually
fade away as the distance farther and farther away, and finally disappear. If there is an
obstacle, the infrared encounters an obstacle which is reflected to the sensor receiver.
The sensor detects this signal and it will know there is an obstacle ahead.

Software Command
Script Type

Command

Comment

Robots

Gets the status of the No.1 obstacle
avoidance sensor

Robots

Gets the status of the No.2 obstacle
avoidance sensor
30

Create a target: Through the obstacle avoidance sensor for the position identification
of the object ahead to achieve automatic tracking.

6. Gesture control
In this episode, we will continue to use obstacle avoidance sensors to achieve new
gameplay!
Software Command
Script Type

Command

Comment

Robots

Gets the status of the No.1 obstacle
avoidance sensor

Robots

Gets the status of the No.2 obstacle
avoidance sensor

Creat a target: Using 2 obstacle avoidance sensors at the top of the Qbot to determine
the direction of movement of the object ahead, so as to make a left or right turn.

7. Illuminate the night
LED hardware principle: There are two large LED lights with 1cm diameter on the
Qbot. We can control the situation of lights(off/ on) by programming.
Software Command:
Script Type

Command

Comment

Robots

Turn on or off the Headlight.

Create a target: Qbot travels along the black track which has been marked. When
traveling to the designated section, 2 LED lights of Qbot open and illuminate the road
ahead. When Qbot leaves the specified section , LED lights turn off.

8. Parking automatically
In this episode, we use edge sensor to achieve new gameplay!
Software Command:
Script Type

Command

Comment

Robots

Get the status of Edge sensor 1

Robots

Get the status of Edge sensor 2

Create a Target: We can make Qbot park automatically

9. RGB lights dancing
Hardware principle of RGB light: There are 2"LED lights" on the LED module. Each
LED light is composed of a red LED lamp bead, a green LED lamp bead and a blue
LED lamp bead.

Software Command
Script Type

Command

Comment
Set the color of the RGB light

Robots

“all” : select the light which you
want to control

Create a target: When Qbot moves, RGB lights randomly issued a variety of colors of
light.

10. Football match
Have you ever seen robot play football? In this episode, we will show you how our
Qbot play this fantastic game!
Create a Target: The Qbot has expanded holes and is compatible with the structure
bracket of the Lego blocks. You can expand the mechanical structure of Qbot by
yourself!
Realization: Carry out the robot soccer contest with mobile phone.
11. Trajectories control
Game description: You can draw trajectories on your mobile phone APP to control
the movement of Qbot. Then Qbot will move along the track.
12. Through the maze
How to apply obstacle avoidance sensors to the actual scene? We'll show it in this
episode!
35

Software Command
Script Type

Command

Comment

Robots

Get the status of the No.1 obstacle
avoidance sensor

Robots

Get the status of the No.1 obstacle
avoidance sensor

Create a target: Using 2 obstacle avoidance sensors at the top of the Qbot combined
with an ultrasonic sensor, the Qbot avoids obstacle and goes out of the maze.

13. Ultrasonic Ranging
Hardware principle of Ultrasonic sensor: The ultrasonic sensor is the input device for
detecting the distance. It has two “eyes”. One is used to launch ultrasonic waves. The
ultrasound will bounce when it encounters an obstacle, which is received by another
“eye”. Sound propagation takes a certain amount of time so that we can measure the
distance of the obstacle based on the time it takes to send and receive the ultrasonic
wave.

For example: you can drag the program “ Alarming and Stopping while facing the
obstacle” into the WeMake, then upload it to Qbot, and then Qbot will alarm and then
stop while facing the obstacle.
14. Mobile Phone control
In this episode, we will show you how to use mobile phone to control Qbot? Let me
show you our Bluetooth module 4.0 first!
Create a Target:
Mobile phone APP control Qbot move forward, backward, turn left, turn right.
You can control the movement of the Qbot through gravity.
Mobile phone APP can control the switch on the front headlight.
The distance measured by the battery voltage and the ultrasonic wave can be
displayed on the mobile phone interface.
15. LED Dot Matric Display
Hardware principle of LED Dot Matric: The dot matrix is made up of many LED
lights, and these LED lights are arranged into a 16*8 matrix, so we can show the
numbers, letters, or simple patterns through the matrix of the LED light.

Software Command:
Script Type Command

Comment

Robots

Display characters at the specified location
( The position is determined by the value of X
and Y）

Create a Target：Show “Hi, I am Qbot! ” on the dot matrix.

16. Trajectories control
Game description: You can draw trajectories on your mobile phone APP to control
the movement of Qbot. Then Qbot will move along the track.

4 Troubleshooting
Q1:I buy Qbot for my children, can children learn to use it?
A:The products of our company are suitable for people of all ages. Children under the
third grade are advised to play with the help of parents. In the process of operation,
not only can the children exercise ability but also develop the intelligence and develop
interest.
Q2:It is unable to maintain a straight line when the car moves forward and
backward,how can i deal with it?
A:Because of the difference in hardware, even if the same power supply standard is
given, the speed of the two wheels of the car is not necessarily synchronous, which
should be modified in the program, and which side is slow to give the higher value,
which needs to be adjusted by the customer.
Q3: The switch of Qbot is turned on, but it cannot connect the Bluetooth signal
anyway,how can i deal with it?Or why should I input PIN in the process of using the
Bluetooth to connect the Qbot?
A:First,it must be on that mobile phone app, not in the setting.Please check the power
the battery is sufficient or not, if the Bluetooth is insufficient, the signal will be weak
and cause unsuccessful connection.Then,whether the access to the app in the mobile
phone is open or not, some permissions limit the normal use of the software;Last,it is
difficult to connect to a few cell phone for Bluetooth chip used by some cell phone is
not very good.(Refer to 3.1 Overview)
Q4: Why can't mobile APP control Qbot?
A: First, confirm your download on the Qbot (mobile + infrared control) .sb2 file
(The user can find the associated path through his own document) , Next, check
whether the cell phone has turned on Bluetooth, and then check whether the car has
opened the switch.
Case one: The APP prompt reads the firmware version timeout.
Find Qbot(mobile phone + infrared control).sb2 file and then drag it into the WeMake
main interface to load, then download to Qbot to ensure that Qbot APP should be
restarted.
Case 2: Shortage of electric quantity
When the Qbot is shortage in power, it will make a sound just like”DiDiDi”. The
battery should be taken out and put into a special charger made by tour company for
at least two hours of charging.
Q5: Why did the .sb2 file fail to read?

A:When the software display: underwrite or upload failure.

This prompt indicates that you do not select the control panel type. You should select
Qbot in the control panel(Just like the picture shown below). Or reconnect the USB
port first.

Q6. Why does LED light do not light up?
A: Please check whether the switch of Qbot has turned on first, second check whether
electric quantity is sufficient.
Q: Why can't I edit Qbot actions on my phone?
A: Only support PC to edit Qbot movement for now.

5 The Historical version of the user
manual
Version

V1.4

Modification
date

2018.7.4

Instructions
The add information:
(1) Solve the problem of drawing
line function on mobile phone
(2) The problem of solution the
Bluetooth interface is that you
need to click "re-scan" to display
Bluetooth
(3) Add the unit "cm" to the
ultrasonic display
(4) Change MiniUSB port to
MicroUSB

Modifier

cheny

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Create Date                     : 2018:07:05 15:37:33+07:37
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