# ULN2003 Driver Board - motors

**URL:** <https://forum.arduino.cc/t/uln2003-driver-board-motors/945280>\
**Category:** Motors, Mechanics, Power and CNC\
**Created:** [January 10, 2022, 2:16am UTC](https://forum.arduino.cc/t/uln2003-driver-board-motors/945280 "2022-01-10T02:16:58Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![joshsdesigns](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/joshsdesigns/32/724169_2.png) [@joshsdesigns](https://forum.arduino.cc/u/joshsdesigns)\
**Post date:** [January 10, 2022, 2:16am UTC](https://forum.arduino.cc/t/uln2003-driver-board-motors/945280/1 "2022-01-10T02:16:58Z")

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I tried using these two together but the motor wasn't quite strong enough.  
I looked on amazon for a bigger motor but the ones for sale only hade 4 lead wires not 5 like this board connecter uses.

Can you recommend a motor with slightly more torque?

Is there an easy way to use the 4 lead wire motors with the 5 pin connector?

 ![Capture](https://europe1.discourse-cdn.com/arduino/original/4X/9/8/8/98842aca59b82a20a3f560ef589b97044bc0230a.jpeg)

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**Author:** ![alanesq](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/alanesq/32/239090_2.png) [@alanesq](https://forum.arduino.cc/u/alanesq)\
**Post date:** [January 10, 2022, 8:55am UTC](https://forum.arduino.cc/t/uln2003-driver-board-motors/945280/2 "2022-01-10T08:55:29Z")

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Hi,  
You will probably want to use a stepper motor driver with larger motors, these actually make using a stepper motor easier as it handles all the technical details and the Arduino just has to tell it which direction and how many steps  
e.g. [How to Control Stepper Motor with DRV8825 Driver & Arduino](https://how2electronics.com/control-stepper-motor-with-drv8825-driver-arduino/)  
or [Pt. 1 TB6600 Stepper Motor Driver with Arduino - YouTube](https://www.youtube.com/watch?v=PHe2MK9CvQM)

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**Author:** ![DrDiettrich](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/drdiettrich/32/219048_2.png) [@DrDiettrich](https://forum.arduino.cc/u/DrDiettrich)\
**Post date:** [January 10, 2022, 10:13am UTC](https://forum.arduino.cc/t/uln2003-driver-board-motors/945280/3 "2022-01-10T10:13:10Z")

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> [@joshsdesigns](#):
>
> I tried using these two together but the motor wasn't quite strong enough.

Take into account that the ULN drops about 2V so your motor actually is fed only by 3V. Increase the motor voltage or use a MOSFET stepper driver module.

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**Author:** ![TomGeorge](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/tomgeorge/32/215261_2.png) [@TomGeorge](https://forum.arduino.cc/u/TomGeorge)\
**Post date:** [January 10, 2022, 10:21am UTC](https://forum.arduino.cc/t/uln2003-driver-board-motors/945280/4 "2022-01-10T10:21:46Z")

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Hi, @joshsdesigns  
Welcome to the forum.

Can you please tell us what your project is?  
We may be able to suggest a different solution to a bigger stepper?

What is thje stepper driving?

Thanks.. Tom... 😀 👍 ☕ 🇦🇺

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**Author:** ![joshsdesigns](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/joshsdesigns/32/724169_2.png) [@joshsdesigns](https://forum.arduino.cc/u/joshsdesigns)\
**Post date:** [January 11, 2022, 3:08pm UTC](https://forum.arduino.cc/t/uln2003-driver-board-motors/945280/5 "2022-01-11T15:08:22Z")

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The weight of the pole and pvc is to much for the motor.

 ![jigger.PNG](https://europe1.discourse-cdn.com/arduino/original/4X/c/e/9/ce96b8ae6a07c20c8fc67764f2ac2f0f26eb07ac.jpeg)

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**Author:** ![TomGeorge](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/tomgeorge/32/215261_2.png) [@TomGeorge](https://forum.arduino.cc/u/TomGeorge)\
**Post date:** [January 12, 2022, 1:59am UTC](https://forum.arduino.cc/t/uln2003-driver-board-motors/945280/6 "2022-01-12T01:59:57Z")

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> [@joshsdesigns](#):
>
> The weight of the pole and pvc is to much for the motor.

Where does the stepper shaft connect?  
What does your project do?  
How big is it?  
Can you post an image with the steppers connected?

Thanks.. Tom... 😀 👍 ☕ 🇦🇺

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**Author:** ![MarkT](https://avatars.discourse-cdn.com/v4/letter/m/c89c15/32.png) [@MarkT](https://forum.arduino.cc/u/MarkT)\
**Post date:** [January 13, 2022, 11:14am UTC](https://forum.arduino.cc/t/uln2003-driver-board-motors/945280/7 "2022-01-13T11:14:44Z")

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> [@joshsdesigns](#):
>
> The weight of the pole and pvc is to much for the motor.

Then balance it perhaps?

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**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\
**Post date:** [July 12, 2022, 11:14am UTC](https://forum.arduino.cc/t/uln2003-driver-board-motors/945280/8 "2022-07-12T11:14:53Z")

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