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Topic: Servo motor shield Arduino (Read 647 times) previous topic - next topic

leo_groeneveld

Feb 07, 2015, 12:12 pm Last Edit: Feb 07, 2015, 12:14 pm by mechatron
Hi,

Is there an Arduino servo motor shield available containing a H-bridge and a dedicated A-B encoder chip? Also one integrated stepper driver would be welcome.

I would like to teach myself something about PID controllers and use the shield to learn something about position control.

Regards,

Leo
to boldly code what no man has coded before

Peter_n

#1
Feb 07, 2015, 06:01 pm Last Edit: Feb 07, 2015, 06:01 pm by Peter_n
A servo motor has logic inside, it doesn't need any driver board.
The Arduino Servo library can be used to control servo motors.
http://arduino.cc/en/reference/servo

There are many boards, also with a dedicated chip to generate servo signals.
This is a nice board : http://www.adafruit.com/products/1438

Search the websites of www.adafruit.com www.sparkfun.com www.pololu.com for other boards.

leo_groeneveld

Hi,

The servo motor I mean is not an RC servo but a regular DC motor using an AB encoder for feedback.

The Arduino motor shield like http://www.arduino.cc/en/Main/ArduinoMotorShieldR3 is what I'm looking but with an encoder chip (for each DC motor) on board.

to boldly code what no man has coded before

Peter_n

Okay, now I understand. Sorry for being slow to understand :)
A driver board with H-bridge and a chip for the encoder, and maybe some control chip, all on the same board. Sorry, that is new for me, I have not heard of that before.

I think manufacturers that make those motors, also make their own board. There are different types of encoders, I don't know if there is a common chip for all.

terryking228

#4
Feb 08, 2015, 04:34 am Last Edit: Feb 08, 2015, 04:35 am by terryking228
Hi,
Here's a board intended for much of that:
http://yourduino.com/sunshop2/index.php?l=product_detail&p=344

I know it is used with some encoders on some robots, but I'm not sure of where info is..
the manual is here:
http://yourduino.com/docs/Micro%20Magician%20instruction%20manual.pdf

DISCLAIMER: Mentioned stuff from my own shop...
Regards, Terry King terry@yourduino.com  - Check great prices, devices and Arduino-related boards at http://YourDuino.com
HOW-TO: http://ArduinoInfo.Info

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