Hi!
Bear with me - this is long.
I started playin with Arduino about two weeks ago.
Went through the tutorials, used the Ethernet shield, interfaced a DCF77 module and had fun with an analogue clock display on the S65 shield.
But I am not competent with a soldering iron 
My experience is more or less limited to soldering different versions of V.24/V.28 cables, ages ago...
(Three things not to trust? Hardware guy with a software patch, software guy with a soldering iron, end use with an idea...)
Bought myself two different motor shields. One being the Adafruit kit (still packed) with the other being the Motor Control v3.0.
This looked like the easier one to assemble...
After installing Eagle to find out from the drawings about the correct LED orientation, I soldered everything together. Found the example sketch, connected a small 9v motor to the motor pins closer to the USB port and applied power, then downloaded the sketch. So far, so good...
Now the power LED is on. If I press a switch, the LED close to it is lit. This works with both switches.
So - what would be the easiest way to find a flaw in a circuit like that? Connect a voltmeter to the motor pins? Re-solder everything?
Best,
Jens
