DC Motor Control
I'm sure this question has been answered more than once. But if I want to go from servo motion to using dc motors what is the best method of doing so, I know the stamp just cant source enough current to run them directly but what type of peripheral hardware or components can I use?
Comments
An H-Bridge is a pretty low level controller. It can turn the motor on and off and it can reverse the motor's motion. It doesn't control speed or position. For speed control, you need some kind of controller of which Parallax sells several including its own. A Stamp can do some speed control, but not well. For position control, you'll need some kind of position sensor and that starts to get complex. Parallax sells a DC motor with a built-in position encoder. You should have a look at the documentation for this
(www.parallax.com/Store/Accessories/MotorServos/tabid/163/CategoryID/57/List/0/Level/a/ProductID/507/Default.aspx?SortField=ProductName%2cProductName)
and the Pololu
(www.parallax.com/Store/Accessories/MotorServoControllers/tabid/160/CategoryID/35/List/0/Level/a/ProductID/491/Default.aspx?SortField=ProductName%2cProductName)
and Parallax
(www.parallax.com/Store/Accessories/MotorServoControllers/tabid/160/CategoryID/35/List/0/Level/a/ProductID/64/Default.aspx?SortField=ProductName%2cProductName)
motor controllers to see what's normally used with a Stamp.
Thanks again
Here's a copy of StampNuts and My Wall-E H-Bridge that I built. 2 of these are needed to control 2 motors, J1 and J2 are the signals that come from the BS2 series or other MCU that you use. I also have another that uses a LM298N chip that uses less part.
Jax
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If a robot has a screw then it must be romoved and hacked into..