The CC3000 hits that sweet spot of usability, price and capability. It uses SPI for communication (not UART!) so you can push data as fast as you want or as slow as you want. Adafruit carefully wrapped this little silver module into an Arduino shield. It has an onboard 3.3V regulator that can handle the 350mA peak current, and a level shifter to allow 3 or 5V logic level.

Each order comes with one fully assembled and tested shield, some male header for attaching it to an Arduino and a 2x3 female header that you can use to plug it into the ICSP port of a Mega. Adafruit got a fully working Arduino library that is based off of TI's codebase but adapted for use with the AVR. Adafruit also have example code showing how to scan the SSID's, connect to your access point and run DHCP, do a DNS lookup to IP address, ping a site and connect to a remote TCP socket such as a website and print out the page.


  • 802.11b/g standard
  • open/WEP/WPA/WPA2 security
  • TCP/UDP protocol
  • reset button
  • microSD socket

Part List

  • 1x wifi shield
  • 1x 1x36 male-male header
  • 1x 2x3 header


Dimensions L x W x H 68.61 mm x 53.38 mm x 2.87 mm
Weight 8.5 g

Write a question

Please login or register to review

Write a review

Please login or register to review

Adafruit CC3000 WiFi Shield with Onboard Ceramic Antenna

  • $ US39.95 $ US15.00
  • USD 250.00 Left For Free Shipping

Tags: adafruit, wifi