The WiFi Shield for Raspberry Pi consists of two components: A Roving Networks RN-171-XV-W (now known as Microchip RN171XVW-I/RM) WiFi module and the Raspberry Pi to Arduino Connection Bridge that contains an XBee socket into which the RN-171-XV-W will connect.
The picture shows these components mounted on a Raspberry Pi board for illustration only. The Raspberry Pi board is not included.
The WiFi Shield for Raspberry Pi allows your Raspberry Pi to communicate with your router via WiFi protocol. The RN-171-XV-W module by Roving Networks is a certified WiFi solution especially designed those who want to migrate their existing 802.15.4 architecture to a standard TCP/IP-based platform without having to redesign their existing hardware.
You can use the free arduPi library which allows you to use your Raspberry Pi with the same code used on an Arduino. To do so, the library implements conversion functions so that you can control all the I/O interfaces (I2C, SPI, UART, analog, digital) on the Raspberry Pi the same way as on an Arduino. See the user manual for details.
RN-171-XV-W WiFi Module Specifications
| Networking Standards || IEEE 802.11 b/g |
| Data rates || 802.11 b: 1, 2, 5.5, 11 Mbps |
802.11 g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps
| Frequency Band || 2.412 - 2.484 GHz |
| Modulation || 802.11 b: DSSS (CCK-11, CCK-5.5, DQPSK-2, DBPSK-1) |
802.11 g: OFDM
| Wi-Fi security || WEP, WPA, WPA2 |
| Protocols || DHCP, DNS, ARP, ICMP, FTP client, HTTP client, TCP, UDP |
| Supply voltage || 3.3V ±10% |
| Output power || 0dBm to +12dBm |
| Power consumption || 4µA sleep, 40mA active RX, 180mA TX (at +12dBm) |
| Data rate || 464Kbps over UART |
| Operating temperature range || -40C to +85C |
| Transmit power || Up to 150 meters (at +12dBm) |
| Interface || UART, Wi-Fi |
| Antenna || Wire antenna |
| Certifications || FCC, IC, CE, Wi-Fi Alliance |
WiFi Shield for Raspberry Pi Resources