Hardware Hookup - sparkfun CC3000 Hook-Up Manual

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The pins used by the shield are as follows:
2 (INT) is the interrupt pin that the CC3000 uses to notify the Arduino that it
has data.
7 (EN) is the enable pin that the Arduino uses to turn the CC3000 off and
on.
8 (SDCS) is the chip select for the SD card.
10 (CS) is the chip select for the CC3000.
11 (MOSI) is the SPI communication line from the Arduino to the CC3000.
12 (MISO) is the SPI communication line from the CC3000 to the Arduino.
13 (SCK) is the SPI clock line.
CC3000 Breakout Board
As opposed to the Shield, the CC3000 Breakout Board contains just the
CC3000 module, an antenna section, a voltage regulator, and a level
shifter. It can work with any 3.3V or 5V logic microcontroller that can
communicate via SPI.
CC3000 Breakout front
GND should be connected to the host circuit's ground.
VCC is the supply voltage and should be connected to 4.3V - 15V if you are
unable to provide 3.3V to the board.
3.3V should be connected to a 3.3V power source if one is available.
IMPORTANT: only one of VCC or 3.3V should be connected.
MOSI should be connected to the SPI MOSI pin of the host microcontroller.
MISO should be connected to the SPI MISO pin of the host microcontroller.
CS should be connected to a SPI chip select pin of the host microcontroller.
INT should be connected to a pin capable of external interruptrs on the
microcontroller.
SCK should be connected to the SPI clock line of the host microcontroller.
EN should be connected to any GPIO pin on the microcontroller.

Hardware Hookup

You can use either the CC3000 Shield or the CC3000 Breakout for the
examples in this tutorial.