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Motor Shield LED
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Please be positive and constructive with your questions and comments.

Motor Shield LED

by jimcook on Wed Aug 27, 2008 7:14 pm

I just assembled my motor shield and it runs a Futaba servo well. The only problem is that the LED on the shield does not light. I have checked several times to make sure that I put the long lead in the hole in the board that has the + next to it.This is the hole next to the resistor.

There might be another way to check if the LED is in correctly. If I shine a flashlight through the LED you can see the two leads. One lead looks like a triangular flag and the other lead is just sticking straight up. The triangular lead is pointing towards the straight lead. This straight lead is in the + hole (next to the resistor).

Any comments will be helpful.

When should this light work? Thanks.

jimcook
 
Posts: 83
Joined: Fri Dec 07, 2007 6:51 pm
Location: Agawam, MA

by adafruit on Wed Aug 27, 2008 7:16 pm

the led lights up for the DC motor supply (9V)
which is different than the servo supply (5V)

adafruit
 
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by jimcook on Wed Aug 27, 2008 7:47 pm

Ahhh.....
Thanks for the very quick reply.

ladyada wrote:the led lights up for the DC motor supply (9V)
which is different than the servo supply (5V)

jimcook
 
Posts: 83
Joined: Fri Dec 07, 2007 6:51 pm
Location: Agawam, MA

DC Motor Supply (9V)

by jimcook on Tue Sep 02, 2008 7:12 am

Does the LED light up when an external 9 volts is connected to the 2 position terminal block and the jumper is removed?

Does the LED light when the DC motor is using the internal power and the jumper is connected?


ladyada wrote:the led lights up for the DC motor supply (9V)
which is different than the servo supply (5V)

jimcook
 
Posts: 83
Joined: Fri Dec 07, 2007 6:51 pm
Location: Agawam, MA

by adafruit on Tue Sep 02, 2008 9:54 am

please read the usage manual, which answers your questions
thx

adafruit
 
Posts: 12151
Joined: Thu Apr 06, 2006 4:21 pm
Location: nyc

by jimcook on Tue Sep 02, 2008 2:55 pm

I re-read the document intitled "Motor Shield How to rev up".
It was there..... it works!!! GREAT!
I'm sitting at the kitchen table watching and giggling as the motor turns on, reverses and then turns off. This is fantastic.
My wife thinks I'm nuts. Oh well, that's not the first time she thought that...
Once again, thanks a lot...

ladyada wrote:please read the usage manual, which answers your questions
thx

jimcook
 
Posts: 83
Joined: Fri Dec 07, 2007 6:51 pm
Location: Agawam, MA

Please be positive and constructive with your questions and comments.