Hello,
I'm working on a project where I will need to control six stepper motors, and as such, we bought three HATs (https://learn.adafruit.com/adafruit-dc- ... cking-hats). The problem is with supplying power. We have found videos from the Adafruit Team that use two HATs stacked with a singular power supply, but nothing on using more than that.
Would it be possible to use a single 12V, 5A power supply to power all three HATs each using two stepper motors?
DC and Stepper Motor HAT Triple Stack
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- adafruit_support_bill
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- Joined: Sat Feb 07, 2009 10:11 am
Re: DC and Stepper Motor HAT Triple Stack
Yes it is possible to power three HAT's worth of motors with a single supply. Just split the feed wires or use jumpers from one HAT to the next.
But first it would be prudent to make sure that the motor/HAT/Power supply combination is workable. What are the electrical specifications for the motors you are using?
But first it would be prudent to make sure that the motor/HAT/Power supply combination is workable. What are the electrical specifications for the motors you are using?
- banangineer
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- Joined: Fri Sep 21, 2018 3:58 pm
Re: DC and Stepper Motor HAT Triple Stack
Thanks for the quick reply. I'm planning to use six of these motors https://www.banggood.com/DC-5V-2-Phase- ... rehouse=CNadafruit_support_bill wrote:Yes it is possible to power three HAT's worth of motors with a single supply. Just split the feed wires or use jumpers from one HAT to the next.
But first it would be prudent to make sure that the motor/HAT/Power supply combination is workable. What are the electrical specifications for the motors you are using?
They would each be 5V motors as recommended from the documentation, so nothing should be overload the hat, but it's a matter of distributing power correctly. We would like to use no more than two electrical outlets (one for the HAT, one for the Pi).
- adafruit_support_bill
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Re: DC and Stepper Motor HAT Triple Stack
Those motors should be fine. But you will need a 5v power source for them. The 12v supply you propose will overload the motors.
With a 30 ohm phase resistance, each motor will draw up to 167 mA per phase for up to 333mA per motor. So for 6 motors you will need a supply capable of delivering 5v@2A continuous.
With a 30 ohm phase resistance, each motor will draw up to 167 mA per phase for up to 333mA per motor. So for 6 motors you will need a supply capable of delivering 5v@2A continuous.
- banangineer
- Posts: 4
- Joined: Fri Sep 21, 2018 3:58 pm
Re: DC and Stepper Motor HAT Triple Stack
So given that we'd need a 5V/2A power supply, would something like this suffice? https://www.adafruit.com/product/276
Also, are there any adapters so that we can attach the power to the HATS? I think I've seen them but want to make sure.
Also, are there any adapters so that we can attach the power to the HATS? I think I've seen them but want to make sure.
- adafruit_support_bill
- Posts: 88093
- Joined: Sat Feb 07, 2009 10:11 am
Re: DC and Stepper Motor HAT Triple Stack
That supply should work. You can either cut off the connector and wire direct, or use an adapter like this: https://www.adafruit.com/product/368
- banangineer
- Posts: 4
- Joined: Fri Sep 21, 2018 3:58 pm
Re: DC and Stepper Motor HAT Triple Stack
I see what you mean. I'll try this out and see what happens. Thanks again for your help!
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Talk about Adafruit Raspberry Pi® accessories! Please do not ask for Linux support, this is for Adafruit products only! For Raspberry Pi help please visit: http://www.raspberrypi.org/phpBB3/
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