Use 2 Steppers & 1 DC Motor (with MotorShield)

Adafruit Ethernet, Motor, Proto, Wave, Datalogger, GPS Shields - etc!

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
Locked
vinschni
 
Posts: 5
Joined: Tue Jan 04, 2011 5:42 pm

Use 2 Steppers & 1 DC Motor (with MotorShield)

Post by vinschni »

Hello together,
I'm using an Arduino Mega2560. I brought the Adafruit MotorShield and assembled it sucessfully. I connected the following: My problem is, I have another motor to control. A 3,6-8V DC Motor. Is there a known solution to switch the additional DC Motor on/off (PWM control is not needed), without using an additional external motordriver? If there is no one, what would be an easy/cheap alternative?

Greetings,

Vinschni
Last edited by vinschni on Tue Jan 04, 2011 6:24 pm, edited 1 time in total.

User avatar
adafruit_support_bill
 
Posts: 88089
Joined: Sat Feb 07, 2009 10:11 am

Re: Use 2 Steppers & 1 DC Motor (with MotorShield)

Post by adafruit_support_bill »

Do you need direction control? If not, a spare digital pin and a transistor can be used to switch the motor on & off. For direction control, two pins would be needed and the circuit is slightly more involved.
http://itp.nyu.edu/physcomp/Tutorials/HighCurrentLoads

vinschni
 
Posts: 5
Joined: Tue Jan 04, 2011 5:42 pm

Re: Use 2 Steppers & 1 DC Motor (with MotorShield)

Post by vinschni »

That seems to be a solution of my problem. I dont need direction control. Thank you, the link is valueable :)

Greetings,
Vinschni

timcastelijn
 
Posts: 1
Joined: Sat Jan 22, 2011 6:56 am

Re: Use 2 Steppers & 1 DC Motor (with MotorShield)

Post by timcastelijn »

hi,

do you know whether it possible connecting multiple motor shields to an arduino board as well, for controlling multiple (3 or 4) steppers. I'm trying to figure out how to make a small cnc production device.

cheers, tim

User avatar
adafruit_support_bill
 
Posts: 88089
Joined: Sat Feb 07, 2009 10:11 am

Re: Use 2 Steppers & 1 DC Motor (with MotorShield)

Post by adafruit_support_bill »

do you know whether it possible connecting multiple motor shields to an arduino
No. You might have a look at Pololu's line of stepper controllers.

Locked
Please be positive and constructive with your questions and comments.

Return to “Arduino Shields from Adafruit”