AdaFruit MotorShield gets HOTT!! with DC motor.
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AdaFruit MotorShield gets HOTT!! with DC motor.

by xian5v on Mon Feb 17, 2014 10:14 pm

Hello,
Running the adafruit motor shield ontop an arduino leonardo. I am running a small DC motor on M2. I have 9volt @800mah to motor. The motors runs for about 30 secs before voltage starts to drop and the shield get really HOTT. ?

i dont wanna cook the shield:(

thank you
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Re: AdaFruit MotorShield gets HOTT!! with DC motor.

by adafruit_support_mike on Tue Feb 18, 2014 12:50 am

Could you post a photo of how you have everything connected please? 800x600 images usually work best.
When you void a product warranty, you give up your right to sue the manufacturer if something goes wrong and accept full responsibility for whatever happens next. And then you truly own the product.
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Re: AdaFruit MotorShield gets HOTT!! with DC motor.

by xian5v on Wed Feb 19, 2014 12:58 pm

http://ozzybot.com/IMG_0591.JPG

picture of my motor shield wired to arduino uno.

thank you,

xian
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Re: AdaFruit MotorShield gets HOTT!! with DC motor.

by adafruit_support_bill on Wed Feb 19, 2014 3:03 pm

That is the older version of the shield. we haven't made those for a while.
I have 9volt @800mah to motor.

The H-bridge chips are only rated for 600mA. Do you have any specs for the motor?
From the description of the symptoms, I suspect that you are overloading the L293D chips and they are shutting down.
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Re: AdaFruit MotorShield gets HOTT!! with DC motor.

by xian5v on Wed Feb 19, 2014 5:17 pm

DFGB37RG-136i Cylinder Shape DC 24V Speed 20 RPM Geared Motor
Product Name : DC Geared Motor;Model : DFGB37RG-136i;Rated Voltage : DC 24V
Output Speed : 20 RPM;Shaft Diameter : 6mm/ 0.236";Gearbox Part Diameter : 37mm/ 1.456"
Thats the info for the motor i am using.

Maybe its time for a new motor shield, I ordered that one last year.

Adafruit Motor/Stepper/Servo Shield for Arduino v2 Kit - v2.0

would Adafruit Motor/Stepper/Servo Shield for Arduino v2 Kit - v2.0 work?
What is the best way to control Larger DC motors?

thanks again!
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Re: AdaFruit MotorShield gets HOTT!! with DC motor.

by adafruit_support_bill on Wed Feb 19, 2014 8:00 pm

The V2 motor shield does handle higher current motors (up to 1.2A) Bui the motor specifications you provided do not mention the motor's current requirements. This is the most important parameter for choosing a motor controller.
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