Assembly of the shield is pretty easy and should take you maybe 20 minutes maximum.
First, check you have all the components.
The green-pcb photo shows the older rev of the kit,
The blue-pcb photo shows the R3 version - we now include an extra 10-pin stacking header and a 2x3 stacking header
Check to make sure that the terminal blocks are facing the right way! You want the 'mouth' to face outward.
The terminal blocks should 'press fit' pretty nicely so they stay in place. If they seem a little loose, you can use tape to hold down the terminal blocks while you solder them.
With the new R3 version, you'll use 1 pc 10pin stacking header, 2 pcs 8 stacking header and 1 pc 6 stacking header
Next we'll place the two LEDs. The first LED is the green-colored one. This will tell us when the Arduino and shields are powered.
LED's are directional which means you need to place it in the right way or it wont work!
Check the LED to find the longer pin. This is the positive lead. That lead goes into the hole closest to the silkscreen '+'
In the image to the left, the longer lead is to the left.
Next is the red LED. This LED can be used for pretty much whatever you want, although we suggest connecting it to pin 13 to act like a debugging LED.
Remember that the LED is directional, and the longer lead is positive. In the image to the left, the longer lead is to the left.
Use the diagonal cutters to clip the long LED legs. They should be cut just above the solder joint.
This will keep them from shorting against stuff.
Next we will place the two 1.0Kohm resistors. These resistors are used to set the brightness of the LEDs. If you want brighter LEDs you can substitute 220 ohm resistors. If you want dimmer LEDs, you can use 4.7Kohm.
Resistors do not have 'direction' so they can go either way and work fine. Place the two resistors into the silkscreen slots on the right of the PCB.
Last we will place the reset switch. This switch will let you easily reset the Arduino.
Tactile switches are symmetric, so you don't have to worry about putting them in wrong, and will snap into place flat against the PCB.
Place the switch next to the RESET text.