Joy-it Motorino User manual
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3
Motorino
3
Ausgabe 01.02.2017 Copyright by Joy-IT 2
3Motorino
Index
1. Introducon
2. Technical specicaon & security informaon
3. Seng up the Arduino
4. Installaon
5. Seng up the I2C-Address
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Dear customer,
thank you for purchasing our product. Please nd our instrucons below.
1. Instruction
Die Motorino board is an extension-board for connecng and using up to 16 PWM-controlled-5V-Servomotors.
Also larger projects are no problem with this extension board.
This board is, for example, perfect for controlling the JOY-iT robot arm.
ART-Nr.: Robot02
High-quality robot arm, made of aluminium
With rotary plate and mounng point for mo-
torcontrols / singe-board computer.
Powered by 6—20 Kg digital servo-motors.
Image 1: Robot02
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2. Technical specication & security information
The Motorino-Extensionboard is equipped with 16 channels for 5V-servomotors and with an opnal connec-
on for an addional capacitor.
The power supply can be established by a 5V coaxial power connector or by a power supply between 4,8V and
6V.
The Motorino-Board is also equipped with an addional crystal oscillator which makes the frequencys as pre-
cise as possible and the discrepancy as low as possible.
Image 2: Board descripon
Connecon for addional capacitor Channel 0-16
4,8V-6V Power supply 5V-DC IN
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The channel-numbers are wrien on the backside of
the board.
The 3 PINs of each channel are, from boom to top,
ground line, voltage line and signal line [GND | V+ |
PWM].
Simply put the board onto the GPIO-PINs of your
Arduino and the cables of your 5V-Servo-Motors on
the Channel-PINs.
An addional power supply, by cable or a 5V coaxial
power connector, is required.
To prevent sudden voltage drops, a capacitor is
mounted on the board.
If this capacitor is insucient in special cases, you are
able to connect another capacitor in parallel with the
intended connecon.
Image 3: board backside
Security information:
To protect against polarity reversal, please note the markings on the inputs of the board (+ and - symbol).
Polarity reversal can damage the board, the connected Arduino and other periphery.
The connected motors, and the generated movement, can pose a risk.
We recommend to remain at a safe distance and take acons so that noone can encounter with moving parts.
This applies in parcular for children.
The used power supply has to be adequate for the performance of the motors. A weak power supply is oen
recognizable by stuering motors. The motors should always perform a smooth moon.
We recommend to use our 4.8A power supply RB-Netzteil2 which provides 24W connous output.
Aer connecng the board to your Arduino, an addional power supply and the servo-motors, the board is
ready to use.
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3. Setting up the Arduino
The soware-example in chapter 4 shows the basic funcon and usage of the servo-motors with the
Motorino.
You can connect motors to any channel.
The example will drive every channel and will use the full moon-radius.
Of course you can modify the example and change it to your needs.
Please transfer the code completly to your Arduino.
Please not that you rst need to load necessary librarys into the Arduinos Librarymanager.
You can nd the steps to install those librarys on the next site.
The Wire library needs to be loaded from the library-database.
Because we have equipped the Motorino-Board with an addional crystal oscillator, a special library is
needed.
This library is based on the Adafruit-PWM-Servo-Driver-Library but is specially adjusted to our board.
We recommend to exclusively use our own, adjusted library.
You can download this library here.
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To install the Wire library, please oben the Arduino Librarymanager as seen below.
In the now opening manager, search the Wire libary and install it.
Image 4: Arduino Sketch-Menu
Image 5: Arduino Librarymanager
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Next step is to include our modied library, which you have already downloaded.
Extract the archive and copy the folder Adafruit-PWM-Servo-Driver_library-master in the following
folder:
C:\Users\[your Username]\Documents\Arduino\libraries
The librarys are now installed.
4. Installation
You can now execute the example-le to test the Motorino-Board.
You can nd this le in the following folder:
C:\Users\[your Username]\Documents\Arduino\libraries\Adafruit_PWM_Servo_Driver_Library\examples\servo
Open the located le and transfer it to your Ardino.
The example-program will drive each servo one aer the other.
5. Setting up the I2C-Address
It is also possible to connect mulple Motorino-boards.
Please note that, in this case, every board needs its own I2C-Address.
To congure the boards I2C-Address, you can solder the jumper.
An opened jumper sets a 0, a closed jumper sets a 1.
Image 6: I2C-Jumper
Table of contents
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