511491 Adafruit CC3000 WiFi Shield with Onboard Ceramic Antenna

Adafruit CC3000 WiFi Shield with Onboard Ceramic Antenna

Shield WiFi con modulo CC3000, utilizza la porta SPI per comunicare.
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Prezzi IVA inclusa
€ 45,13 Prezzo
€ 36,99 + VAT

 

Dettagli

For years we've seen all sorts of microcontroller-friendly WiFi modules but none of them were really Adafruit-worthy. Either they were too slow, or too difficult to use, or required signing an NDA, or had limited functionality, or too expensive, or too large. So we shied away from creating or developing a WiFi Arduino shield. 

NO LONGER! 

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. It has a proper interrupt system with IRQ pin so you can have asynchronous connections. It supports 802.11b/g, open/WEP/WPA/WPA2 security, TKIP & AES. A built in TCP/IP stack with a "BSD socket" interface. TCP and UDP in both client and server mode, up to 4 concurrent sockets. It does not support "AP" mode, it can connect to an access point but it cannot be an access point. 

We carefully wrapped this little silver module into an Arduino shield. We also added a microSD socket and a reset button. 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. The antenna layout is identical to TI's suggested layout and we're using the same components, trace arrangement, and antenna so the board maintains its FCC emitter compliance (you'll still need to perform FCC validation for a finished product, but the WiFi part is taken care of). Even though it's got an onboard antenna we were pretty surprised at the range, as good as a smartphone's. 

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. We don't have a detailed tutorial yet but to get you started, we've got a fully working Arduino library that is based off of TI's codebase but adapted for use with the AVR. We 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. 

Please note the hardware is good, but the library code does not yet support all of the CC3000's functionality. SSID scanning, connection, DHCP, DNS lookup, ping, and UDP/TCP client connections (eg connect to a website and grab data) all work and are tested with example code. UDP/TCP server connections are not supported yet! As we try to complete the functionality, check or subscribe to the github repo for instant updatesFor now we suggest this module and codebase for people with Arduino programming and microcontroller experience until we finish up our tutorial and documentation! 

For use with Arduino Uno & Mega only at this time. For Mega, install the 2x3 header and solder closed the 3 solder jumpers on the bottom labeled MISO/MOSI/SCLK. We'll try to get the code ported to the Leonardo/Due at some point but no ETA!

  • Max Dimensions: 68.61mm / 2.7" x 53.38mm / 2.1" x 2.87mm / 0.11"
  • Weight: 8.5g

List of wifi access points used to test the CC3000 (by TI, not verified by Adafruit) 

Using an Apple Airport? Check this thread for details on how to set it up for use with the CC3000

Specifiche

Part. No. : 1491
Interfaccia : SPI
Tipo Shield : Wi-Fi

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