Motor Shield
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Please be positive and constructive with your questions and comments.
- biobreed
- Posts: 13
- Joined: Wed Aug 13, 2014 11:46 am
Re: Motor Shield
I am also using a 1 amp, 12v power supply to the shield.
- adafruit_support_bill
- Posts: 88096
- Joined: Sat Feb 07, 2009 10:11 am
Re: Motor Shield
I really don't see anything wrong there. let me check with a couple of the other engineers and see if they can spot the problem.
- biobreed
- Posts: 13
- Joined: Wed Aug 13, 2014 11:46 am
Re: Motor Shield
I have also checked continuity for each pin going from the shield to the Arduino. See read arrows at A5 for an example. All connections are good with zero resistance.
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- adafruit2
- Posts: 22148
- Joined: Fri Mar 11, 2005 7:36 pm
Re: Motor Shield
Hiya, the photo we saw earlier doesnt have the VIN jumper in place. This *has* to be inplace! otherwise you're running the stepper off of USB which causes the USB to reset (it cant drive motors!)
plz install the VIN jumper and/or use a 9V external wall adapter. thx!
plz install the VIN jumper and/or use a 9V external wall adapter. thx!
- adafruit_support_bill
- Posts: 88096
- Joined: Sat Feb 07, 2009 10:11 am
Re: Motor Shield
If you are using your external 12v supply you should not need the VIN jumper. Let's check a few more things:
First check the voltage at the external supply terminals - just to make sure that we are seeing the full 12v there.
Next: Is the motor making any kind of noise or vibration at all?
Next: Disconnect the motor from the shield and see if you can turn the shaft by hand.
Finally: measure the resistance of the coils. There should be about 35 ohms between red & yellow as well as between green & gray.
First check the voltage at the external supply terminals - just to make sure that we are seeing the full 12v there.
Next: Is the motor making any kind of noise or vibration at all?
Next: Disconnect the motor from the shield and see if you can turn the shaft by hand.
Finally: measure the resistance of the coils. There should be about 35 ohms between red & yellow as well as between green & gray.
- Santy
- Posts: 1
- Joined: Tue Sep 09, 2014 4:50 am
Re: Motor Shield
hola, he descargado sus librerias para la LCD nokia 5110 y me da multiples errores,
Adjunto fichero con el reporte de errores, a ver si alguien me puede ayudar Gracias.
Adjunto fichero con el reporte de errores, a ver si alguien me puede ayudar Gracias.
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- adafruit_support_bill
- Posts: 88096
- Joined: Sat Feb 07, 2009 10:11 am
Re: Motor Shield
[Via Google Translate]
Hello Santy - Please start a new thread for your topic. This thread is about motor shield problems.Hello , I downloaded their libraries for nokia 5110 LCD and gives me multiple errors ,
Attached file with error reporting , see if someone can help me Thanks .
- biobreed
- Posts: 13
- Joined: Wed Aug 13, 2014 11:46 am
Re: Motor Shield
Ok,
I measured the resistance and I get 35 ohms across the leads. I can turn the shaft whether the motor is attached to the shield or not. Incidentally, if the shield is not powered, and I turn the shaft, electricity is produced and lights the shield green led power light. There are no vibrating sounds coming from the motor when it is hooked up. Is there any test that I can do to see if the Arduino is even communicating anything to the shield? It appears to be doing nothing. Or is there any test I can try on the shield, maybe at the motor leads? There is no voltage coming through the motor terminal while the motor party or stepper test is running.
Bill
I measured the resistance and I get 35 ohms across the leads. I can turn the shaft whether the motor is attached to the shield or not. Incidentally, if the shield is not powered, and I turn the shaft, electricity is produced and lights the shield green led power light. There are no vibrating sounds coming from the motor when it is hooked up. Is there any test that I can do to see if the Arduino is even communicating anything to the shield? It appears to be doing nothing. Or is there any test I can try on the shield, maybe at the motor leads? There is no voltage coming through the motor terminal while the motor party or stepper test is running.
Bill
- adafruit_support_bill
- Posts: 88096
- Joined: Sat Feb 07, 2009 10:11 am
Re: Motor Shield
Measure the voltage at the external supply terminals - just to make sure that we are seeing the full 12v there.
If you run the i2cScanner, it will verify that the Arduino can communicate with the shield.
http://playground.arduino.cc/Main/I2cScanner
If you run the i2cScanner, it will verify that the Arduino can communicate with the shield.
http://playground.arduino.cc/Main/I2cScanner
- biobreed
- Posts: 13
- Joined: Wed Aug 13, 2014 11:46 am
Re: Motor Shield
Hi,
Thank you for your patience in helping me sort this out. I checked the terminals and they are at 11.95 V. I am running the i2c scanner right now and it has been stuck at I2c scanner Scanning... for about 5 minutes. This is with the new Arduino and the replacement shield that you sent me. I will try the first shield that you sent me with the new arduino now.
Update: With the new Arduino and the first shield, the scanner say no i2c devices found.
Bill
Thank you for your patience in helping me sort this out. I checked the terminals and they are at 11.95 V. I am running the i2c scanner right now and it has been stuck at I2c scanner Scanning... for about 5 minutes. This is with the new Arduino and the replacement shield that you sent me. I will try the first shield that you sent me with the new arduino now.
Update: With the new Arduino and the first shield, the scanner say no i2c devices found.
Bill
- adafruit_support_bill
- Posts: 88096
- Joined: Sat Feb 07, 2009 10:11 am
Re: Motor Shield
It is clearly not talking to either shield. There is not much between the Arduino and the controller chip. The I2c bus is connected by A4/A5 as well as by the ACL/SDA pins and you soldering on all of those looks fine - as does your power and ground.
At this point, all I can do is offer you a refund. If you contact [email protected] with a link to this thread they can arrange that for you.
At this point, all I can do is offer you a refund. If you contact [email protected] with a link to this thread they can arrange that for you.
- juttajxwa
- Posts: 1
- Joined: Fri Oct 17, 2014 9:30 pm
Re: Motor Shield
I am using a 1 amp, 12v power supply to the shield too! Bengals Russell Bodine
Last edited by juttajxwa on Mon Jun 08, 2015 10:34 pm, edited 1 time in total.
- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: Motor Shield
What problem are you having? Please post clear, detailed pictures of both sides of the shield, showing your soldering.juttajxwa wrote:I am using a 1 amp, 12v power supply to the shield too!
- biobreed
- Posts: 13
- Joined: Wed Aug 13, 2014 11:46 am
Re: Motor Shield
Update: Gents, not believing the problem was with my two Arduino Uno's, I ordered and just received a Deek-Bot shield 2.0. It looks exactly like the Adafruit shield and ended up working right out of the bag with the Adafruit libraries for 2.0. That means the first two shields that I received were DOA. What are the odds of that? I am glad that I persisted. I was about to give up on this project.
Please be positive and constructive with your questions and comments.