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Arduino UNO hangs/crashes with motor shield V2
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Arduino UNO hangs/crashes with motor shield V2

by SirChristopher on Mon Oct 05, 2020 1:28 pm

Hi, I recently purchased two V2.3 motor shields which I intend to stack to control 5 DC motors.

Running the DCMotorTest code on the shield with the stacking pins hangs and the UNO becomes unresponsive as soon as AFMS.begin() is called, running the i2c scanner also causes the same crash/hang issue.

The shield with the regular pins works fine so I know there is no problem with the UNO.

I have attached photos of the soldering.

Regards

Chris
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SirChristopher
 
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Re: Arduino UNO hangs/crashes with motor shield V2

by dastels on Mon Oct 05, 2020 1:40 pm

Some of the solder joints look like they may not be flowing onto the pads adequately. They shouldn't look like Hershey Kisses, but like the roof of a sircular tent.

See https://learn.adafruit.com/adafruit-guide-excellent-soldering.

Dave

dastels
 
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Re: Arduino UNO hangs/crashes with motor shield V2

by SirChristopher on Mon Oct 05, 2020 1:59 pm

Any specific ones you can point out?

SirChristopher
 
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Re: Arduino UNO hangs/crashes with motor shield V2

by dastels on Mon Oct 05, 2020 2:05 pm

I would just reheat all of them. Don't hold the iron on each of them for long, If it doesn't work quickly, come back to it later.

Dave

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Re: Arduino UNO hangs/crashes with motor shield V2

by SirChristopher on Mon Oct 05, 2020 7:36 pm

Ok I got it working, I reheated the i2c pins and added extra solder. Thanks for your help!

SirChristopher
 
Posts: 3
Joined: Mon Oct 05, 2020 1:18 pm

Re: Arduino UNO hangs/crashes with motor shield V2

by dastels on Tue Oct 06, 2020 10:44 am

Awesome!

Have fun.

Dave

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Please be positive and constructive with your questions and comments.