Headers
Installing the optional headers is a simple process and takes just a few minutes:
Position the Header
Cut the header strip to length if necessary and place it in the breadboard (long pins down!). Position the breakout board over the header.And Solder!
Solder each pin to assure a good electrical connection. If you are new to soldering, check out the Adafruit Guide to Excellent Soldering.Wiring
Wiring to the Arduino is simple as well. Just power, ground and a signal wire:Basic Wiring:
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GND -> Arduino GND
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IO -> Arduino GPIO pin (The example code uses pin 8)