Joy-it MOTOPI Manual Download Page 3

www.joy

-

it.net

 

Pascalstr. 8 47506 Neukirchen

-

Vluyn

 

 

 

On the backside of the board, the numeration of the channels can be 

read.

 

 

The 3 pins of each channel are from top to bottom the connection for 

ground, voltage and signal [GND | V+ | PWM].

 

The board can be plugged on the GPIO pins of the Raspberry Pi and the 

cable of your 5V servomotors can be connected with the pins of the 

 

channels.

 

An additional power supply via a cable or a 5V coaxial power connector is 

mandatory necessary to operate.

 

 

To prevent sudden voltage drops, the board has a capacitor. If in special 

cases this is not enough, you can connect an additional 

 

capacitor parallel via the according connection.

 

 

The power supply must be adjusted to the power of the connected mo-

tors. If the power supply is insufficiently dimensioned, the motors will 

stutter instead of moving smoothly. We recommend the use of our 4.8 

power supply 

RB

-

Netzteil2 which offers a 24 W continuous 

 

output. 

 

After pinning the expansion board on your Raspberry Pi, connecting an 

additional power supply and connecting the servomotors, the board is 

ready to use. 

 

Safety instructions

 

To prevent inverse polarity, please note the markings on the board from  the 

according input (+ and 

-

 symbol).

 

An  inverse  polarity  can  cause  damage  to  your  board,  the  connected 

 

Raspberry Pi and other peripheries!

 

The  motors  you  connect  and  the  movement  they  generate  can  be  dange-

rous.

 

Therefore,  we  recommend  sufficient  safety  distance  or  rather  to  take 

 

measurements so that no one can get in touch with the moving parts.

 

Summary of Contents for MOTOPI

Page 1: ...tor control for the Raspberry Pi 1 GENERAL INFORMATION Dear customer Thank you for purchasing our product In the following we will show you which things should be noted during the use Should you encou...

Page 2: ...ase plate is made out of 4 5 mm thick acryl and has mounting holes for all common singleboard computer and microcontollers 3 TECHNICAL DATA SAFETY INSTRUCTIONS The MotoPi board is equipped with 16 cha...

Page 3: ...on The power supply must be adjusted to the power of the connected mo tors If the power supply is insufficiently dimensioned the motors will stutter instead of moving smoothly We recommend the use of...

Page 4: ...image on your SD card Choose therefore like shown in the picture below the image and your SD card After that you can start the writing process with Write If this step is successfull you can put the SD...

Page 5: ...www joy it net Pascalstr 8 47506 Neukirchen Vluyn Enable the function SPI Confirm the next windows all with Yes or rather Ok Afterwards you must enable the function I2C...

Page 6: ...mend using unconditionally and exclusively our own adjusted library This library can be downloaded here Copy the unzipped library completely on your Raspberry Pi and navigate in the terminal into this...

Page 7: ...ital connection is connected with the GPIO pin 27 and the second pin to the GPIO pin 22 7 CODE EXAMPLE TO USE THE DIGITAL CONNECTIONS Here you have a short code example for controlling the digital con...

Page 8: ...e 20 from our LinkerKit series Note that if not all connection are taken the free pins can issue false values import spidev import time import sys spi spidev SpiDev spi open 0 0 spi max_speed_hz 20000...

Page 9: ...else print _______________________________________ n print Channel 0 value readadc 0 volts value 3 3 1024 print 4d 1023 5 3f V value volts print Channel 1 value readadc 1 volts value 3 3 1024 print 4...

Page 10: ...product in normal household quantities 1 Possibility of return at our company location during our opening hours Simac Electronics Handel GmbH Pascalstr 8 D 47506 Neukirchen Vluyn 2 Possibility of ret...

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