Motor Shield V2 with Arduino UNO

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icemannie
 
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Motor Shield V2 with Arduino UNO

Post by icemannie »

I'm trying to run a Jameco 238538 12 volt 0.4 amp unipolar stepper motor. 12 volts is coming into the motor power block from a wall mount 1.5 amp supply. It reads just over 13 volts. The Stepper Test program causes the motor to move back and forward by one step only. A voltmeter shows only one coil of the motor is getting a changing voltage. The other stays at 0 volts. The motor ohms out ok from the terminal blocks at 60 and 30 ohms. The same thing happens on both motor terminal blocks. I've been over all my soldering a number of times.

Any ideas welcomed.

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Franklin97355
 
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Re: Motor Shield V2 with Arduino UNO

Post by Franklin97355 »

Could you post large, clear, detailed pictures of both sides of your board and the connections to it? Pictures should be less than 1meg in size. 800x600 works well.

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icemannie
 
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Re: Motor Shield V2 with Arduino UNO

Post by icemannie »

Pictures attached.
Attachments
20150708_204840.jpg
20150708_204840.jpg (415.51 KiB) Viewed 226 times
20150708_204641.jpg
20150708_204641.jpg (407.17 KiB) Viewed 226 times

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marshaj847
 
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Re: Motor Shield V2 with Arduino UNO

Post by marshaj847 »

Just an observation, one motor you have wired
Black, Green, White & Yellow, Red, Blue
the other one seems to be
Green, Black, White 7 Yellow, Red, Blue

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adafruit_support_bill
 
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Re: Motor Shield V2 with Arduino UNO

Post by adafruit_support_bill »

Try your voltage measurements with the motor disconnected from the shield.

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icemannie
 
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Re: Motor Shield V2 with Arduino UNO

Post by icemannie »

Turned out to be a bad shield - probably caused by a misconnection at some point. Thanks to everyone who responded.

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