29 Dec '12, 7am

[Arduino] / “Danger Shield Kit Landing Page - SparkFun Electronics”

[Arduino] / “Danger Shield Kit Landing Page - SparkFun Electronics”

The next step is to solder in the three LEDs. Your kit includes two yellow and one red LED. The red LED goes in the top right corner, and is the power indicator LED. The yellow LEDs go along the right side of the board, and are controlled by digital pins D5 and D6 of the Arduino. The LEDs are polar, so they must be soldered with the correct orientation in order to work. Notice the base of the LED where the leads come out. Around that base there is a flat side to the resistor. This is reflected on the PCB silk. The flat side of the resistor should line up with the flat side of the silk. The other way to tell if you're placing the part correctly is that the shorter lead is inserted into the via closer to the flat part on the silk. When you have your LED's soldered, your board should look like this:

Full article: http://www.sparkfun.com/tutorials/274

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