Connecting An External Antenna - sparkfun CC3000 Hook-Up Manual

Fritzing diagram of CC3000 Breakout Board hookup
(CC3000 Breakout Board → Arduino)
• GND → GND
• VCC → 5V
• MOSI → 11
• MISO → 12
• CS → 10
• INT → 2
• SCK → 13
• EN → 7

Connecting an External Antenna

IMPORTANT: This step is optional! You don't need to add an external
antenna to get the CC3000 to work (the chip antenna on the shield and
breakout board works well enough). Only do this if you need to add an
external antenna.
Both the CC3000 Shield and Breakout Board offer the ability to attach an
external antenna. This is a handy feature if you want to route an antenna to
the outside of an enclosure or to increase your WiFi gain.
Shield
Desolder the capacitor labeled "Antenna Select."
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