Arduino Motor Shield v2.3 with OWI Robotic Arm Edge

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moxon
 
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Arduino Motor Shield v2.3 with OWI Robotic Arm Edge

Post by moxon »

Hi-

I'm having trouble getting the motors of a robotic arm to work.

Specifically:

I am following this tutorial about modifying an OWI robotic arm edge with an Arduino:
https://www.instructables.com/Intro-and ... oull-need/

I am using an Uno (or more precisely an Uno clone that has been verified as identical) and the Arduino Motor Shield v2.3.

I cannot get the motors of the arm to work. The power light on the shield is solid green. The Vin pin is also in place on the shield. I've stacked the shield on top of the Uno which in turn is running on its own power supply.

I have tried using different examples of code, but to no avail.

What am I missing? While I'm new to electronics and robotics, hopefully this issue is within the scope of this forum.

Any help would be greatly appreciated!

Thanks!

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Franklin97355
 
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Re: Arduino Motor Shield v2.3 with OWI Robotic Arm Edge

Post by Franklin97355 »

The instruction is for version 1.2 and you are using version 2.3. How are you connecting the controller to the arm and what program are you trying to run?

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adafruit_support_bill
 
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Re: Arduino Motor Shield v2.3 with OWI Robotic Arm Edge

Post by adafruit_support_bill »

Also please post some photos showing your soldering and connections to the shield and motors.

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moxon
 
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Re: Arduino Motor Shield v2.3 with OWI Robotic Arm Edge

Post by moxon »

I'm just seeing both of these replies now even though I thought I had notifications turned on! I'll post my replies this evening!

Thanks very much

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moxon
 
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Re: Arduino Motor Shield v2.3 with OWI Robotic Arm Edge

Post by moxon »

Finally

Here are the pictures of the robot arm connected to the Arduino and the shield.
IMG_4855.jpg
IMG_4855.jpg (91.97 KiB) Viewed 787 times
IMG_4852.jpg
IMG_4852.jpg (100.18 KiB) Viewed 787 times
IMG_4853.jpg
IMG_4853.jpg (88.23 KiB) Viewed 787 times

Some points:

I'm not using any solder (at least not yet). The shield just rests on top of the Uno (clone) for now until I'm sure of what I'm doing.

The VIN jumper is in place. I'm able to get a solid green light from the shield.

I have solid hookup wire connecting from one of the four "M" terminals on the shield to the cable of the arm's motor.

I also have a proper power supply for the Uno clone that I ordered from you as well.

The code I'm using is here:
https://learn.adafruit.com/adafruit-mot ... -dc-motors

If there any resources I should look at as well to get a basic, fundamental understanding of what I'm working with, I'd greatly appreciate any suggestions as well! I'll check back frequently for your response(s).

I'm new to electronics. Thanks for your patience.

Thanks again!

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adafruit_support_bill
 
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Re: Arduino Motor Shield v2.3 with OWI Robotic Arm Edge

Post by adafruit_support_bill »

Soldering the headers would be the place to start. Communication with the board is via the i2c bus and that is not at all tolerant of poor connections.

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moxon
 
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Re: Arduino Motor Shield v2.3 with OWI Robotic Arm Edge

Post by moxon »

Soldering did it. Everything worked right away!

Thanks so much!

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adafruit_support_bill
 
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Re: Arduino Motor Shield v2.3 with OWI Robotic Arm Edge

Post by adafruit_support_bill »

Good to hear that is working for you. Thanks for the update.

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