DF ROBOT Maqueen Mechanic-Beetle Operation instructions

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Tutorial of
Maqueen Mechanic - Beetle
[ROB0156-B]
www.DFRobot.com

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Installation Diagram

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1. Wiring
Method to Control
Plug the 3pin servo wire into port S1 or S2 of Maqueen, shown as below:

Brown wire to Black pin
 Red wire to Red pin
 Orange wire to Green pin
2. Makecode Tutorial
1. Click to open the Makecode programming web：
https://makecode.microbit.org/#editor

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2. Import extensions for Maqueen:
1) Click More
2) Click Extensions
3) Search dfrobot
4) Click to select Maqueen
As shown in the figure:
3. Examples
1. Make the beetle pincers to grasp and release
1) The example will use a servo to make the pincers grasp and
release. The code is as follows:

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2) Connect the micro: bit to the computer via a USB cable. Meanwhile, a new
“MICROBIT” disk will show in the computer. Click the "Download" button to
download the code to MICROBIT disk. As shown in the figure:
3) Turn Maqueen on when the example code is downloaded, then the beetle
pincers will constantly grasp and release.
There are two ways to adjust the starting and ending angles of rotation:
 Adjust the angle value in the code.
 Loosen the two screws on the servo and adjust the servo by hand,
then tighten the screws. As shown in the figure:

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Key
Key Value（Decimal）
Red Key
0
VOL+
1
FUNC/STOP
2
Rwd
4
Pause/Play
5
Fwd
6
Down Triangle
8
VOL-
9
Up Triangle
10
0
12
EQ
13
ST/REPT
14
1
16
2
17
3
18
4
20
5
21
6
22
7
24
8
25
9
26
2. IR Remote control of the beetle
This example uses the infrared remote control to make the beetle pincers
to grasp and release. Each button of the infrared remote control is
corresponding to one key value.
Key value table of infrared remote control
Now, let's program an example to control the angle of the beetle pincers by the
infrared remote control. The code is shown in the figure:

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After the code is downloaded to micro: bit, pointing the infrared remote control to
the infrared receiver of Maqueen, holding the Up Triangle and the Down Triangle
respectively, and the beetle pincers will grasp and release continuously.
3. IR Remote control of the Maqueen Mechanic- Beetle
In the two programs above, we have controlled the movement of the beetle
pincers separately. The example below is a comprehensive program.
It uses the infrared remote control to enable the Maqueen move forward and
backward and the pincers grasp and release.
Code URL: https://makecode.microbit.org/_D3bFyhgyYT7A
The code is shown as below:

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In this example, Keys 2, 8, 4, 6, 5 are used to control Maqueen to move forward,
move backward, turn left, turn right and stop;
Using the Up and Down Triangles to make the beetle pincers release and grasp
respectively.