Makeblock mBot User manual

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mBot Add-on Pack
Interactive Light & Sound

Contents
1. Basic information
A.Contents ................................................................................ 1
B.Introduction to product ........................................................ 2
C.Parts list ................................................................................. 3
D.Tool tips ................................................................................. 4
E.Me light sensor ...................................................................... 5
F.Me sound sensor ....................................................................
6
G.Me RGB LED ........................................................................... 7
2. Example 1: Light chasing robot ...............................................
8
3. Example 2: Intelligent desk light ............................................ 11
4. Example 3: Scorpion robot ..............................
.................... ... 16
5. Suggestion about programming ............................................
20
1

Introduction to product
mBot interactive light & sound pack is a 3-in-1 add-on pack. With the parts in the pack,
you can build out three robots based on mBot : “light chasing robot”, “intelligent desk
light” and “scorpion robot”.
Light chasing robot:
It detects the light intensity around mBot via
two light sensors on each side. When the light
intensity on the left side is greater than that on
the right side, the robot will turn left; when the
light intensity on the right side is greater than
that on the left side, the robot will turn right;
otherwise, the robot will go straight.
Intelligent desk light:
By changing the building configuration, mBot
can turn into an “intelligent desk light”. The
light has two operating modes: touch mode in
which the light brightness can be regulated by
touching the line follower sensor with fingers,
and voice control mode, in which the sound
intensity in the surrounding area has to be
sensed, and when the intensity is large, the light
will come on, like the voice-activated light at the
stairway in our daily life.
Scorpion robot:
Add mBot with a vivid “tail”, enabling it to look
like a scorpion. In this case, by adding an arc tail
at the rear part of mBot, the center of gravity of
the robot is changed, thus making it easier for
the mBot to raise its head.
Makeblock
Makeblock
Makeblock
2

Parts list
Screws and nuts (1:1 Scale)
2× Me Light Sensor 2× Beam0808-072
2× Beam0824-080
1× Plate 45°
1× Me RGB LED
1× Me Sound Sensor
2× RJ25 cable-35cm
1× Wrench M5+M7
9× Nut M4
4× Screw M4*8
9× Screw M4*14
5× Screw M4*22
4× Spacer 4*7*3mm
3

Tool tips
Hexagon socket screws
Phillips screw
Fix the screws forcibly
as shown
4
Fix the nuts forcibly
as shown

Me Light Sensor
The light sensor is developed based on the principle of semiconductor’s photoelectric
effect. It can be used to detect the light intensity in the surrounding area and determine
the light difference on different color surfaces. Moreover, it can also be used to make
some items interacted with light, like intelligent dimming clearance light and intelligent
light chaser robot. The module interface is in black, indicating it is an analog signal
interface. The sensor module is connected to the black interface on the mainboard.
Technical specification:
Operating voltage: 5V DC
Operating temperature: -30°C～70°C
Module size: 52 x 24 x 18 mm (L x W x H)
Control method: single analog interface
Analog output : (> 500) when exposed to sunlight; (0 ~ 100) in the night; (100 ~ 500)
under indoor lighting
5

Me Sound Sensor
The sound sensor can be used to detect the sound intensity in the surrounding area,
empowering the robot with “listening” capacity. Such sensor is developed based on
microphone, and its core component is LM2904 low power amplifier. You can use this
sensor to make some interactive items, like voice operated switch, intelligent
voice-activated light and robot dancing with music rhythm.
Technical specification:
Operating voltage: 5V DC
Microphone sensitivity (1 Khz): 50-54 dB
Module size: 52 x 24 x 18 mm (L x W x H)
Control method: single analog interface
Analog output: (> 250) in noisy environment; (100 ~ 250) under quiet condition
6

Me RGB LED
The colored Me RGB LED module includes four RGB LEDs with adjustable full color
gamut. For each LED, its color is determined by the value of red (R), green (G) and blue
(B), and the LED itself is characterized by highlight and adjustable brightness, realizing
flowing water, flashing, rainbow light and other effects. The module interface is in
yellow, indicating single digital interface control is adopted, and it must be connected
to the yellow interface on the mainboard.
Technical specification:
Operating voltage: 5V DC
Number of light: 4 x RGB LED
Maximum current: 60mA for each, totally 240mA
Light model: WS2812-4
Brightness range: 0~255
Control method: single digital interface
Operating temperature: -25～+80°C
Angle of visibility: >140°
Module size: 52 x 24 x 18 mm (L x W x H)
7

Product size
mBot Class mBot Extension Example
mBot Interactive Light & Sound Add-on
Pack ‒ Light Chasing Robot
Function description:
It detects the light intensity around mBot via two light sensors on each side. When the
light intensity on the left side is greater than that on the right side, the robot will turn
left; when the light intensity on the right side is greater than that on the left side, the
robot will turn right; otherwise, the robot will go straight.
168.00mm
166.00mm
96.59mm
8

Beam0808-072x2
M4*14x4
Building steps
1
2
Beam0808-072 ×2
Screw M4*14 ×4
Nut M4 ×4
Me Light sensor ×2
Screw M4*8 ×4
MeLightSensorx2
M4*8x4
9

3
4
Assembled diagram
Wiring diagram
10
Right light sensor
Left light sensor
Right light sensor (Port4)
Left light sensor (Port3)
Me line follower sensor Me ultrasonic sensor
Left motor
Right motor
Left wheel (left motor)
Please follow page 20 for programming

Product size
mBot Class mBot Extension Example
Function description
By changing the building configuration, mBot can turn into an “intelligent desk light”.
The light has two operating modes: touch mode in which the light brightness can be
regulated by touching the line follower sensor with fingers, and voice control mode, in
which the sound intensity in the surrounding area has to be sensed, and when the
intensity is large, the light will come on, like the voice-activated light at the stairway.
mBot Interactive Light & Sound Add-on
Pack ‒ Intelligent Desk Light
184.76mm
118.70mm
159.63mm
11

M4*22x4
M4螺母x4
Beam0824-080x1
Beam0808-072x1
Building steps
M4*22x4
M4螺母x4
Beam0824-080x1
Beam0808-072x1
4*8*3垫片x4
Beam0808-072 ×1
Beam0824-080 ×1
Nut M4 ×4
Screw M4*22 ×4
Beam0808-072 ×1
Beam0824-080
×1
Nut M4 ×4
Screw M4*22 ×4
Spacer4*7*3 ×4
Note:
If your mBot is in version v1.0 (without plastic protective case), please refer to
this diagram for installation.
1
Note:
Some parts in this building example come from mBot, so you need to disassemble mBot first.
12

M4*22x1
M4*14x3
M4螺母x3
Beam0824-080x1
MeLineFollowerx1
M4*14x2
Beam0824-080x1
Beam0824-080 ×1
Screw M4*14 ×2
Me Line follower sensor
×1
Beam0808-072 ×1
Nut M4 ×3
Screw M4*14 ×3
Screw M4*22 ×1
2
3
Screw M4*22
13

M4*14x2
M4螺母x2
M4*8x4
MeSoundSensorx1
MeRGBLEDx1
mBot壳x1
mBot chassis ×1
Me RGB LED ×1
Me Sound Sensor ×1
Screw M4*8 ×4
Nut M4
×2
Screw M4*14 ×2
4
5
14

6
7
Assembled diagram
Wiring diagram
15
Me sound sensor
Me RGB LED
Me line follower sensor
Please follow page 20 for programming

mBot Class mBot Extension Example
mBot Interactive Light & Sound Add-on
Pack ‒ Scorpion robot
Function description
Add mBot with a vivid “tail”, enabling it to look like a scorpion. In this case, by adding
an arc tail at the rear part of mBot, the center of gravity of the robot is changed, thus
making it easier for the mBot to raise its head.
Product size
148.65mm 226.48mm 202.95mm
Makeblock
Makeblock
16

Building steps
1
2
MeSoundSensorx1
MeRGBLEDx1
M4*14x2
M4*8x2
M4螺母x2
Beam0824-080x1
M4*14x1
M4*22x1
M4螺母x1
Beam0808-072x1
Beam0824-080 ×1
Me RGB LED ×1
Me Sound Sensor ×1
Nut M4 ×2
Screw M4*8 ×2
Screw M4*14 ×2
Beam0808-072
×1
Nut M4 ×1
Screw M4*22 ×1
Screw M4*14 ×1
Screw M4*22
17

3
4
M4*14x4
M4螺母x4
Beam0808-072x1
Plate45°x1
Plate 45° ×1
Beam0808-072 ×1
Screw M4*14 ×4
Nut M4 ×4
Nut M4
×2
Screw M4*14 ×2
18