ARDUINO UNO WiFi Ethernet Shield | Apple Airplay | DLNA audio | Access Point

Datasheet:
The RT5350 SoC combines Ralinks IEEE 802.11n draft compliant 1T1R MAC/BBP/PA/RF, a high performance 360 MHz MIPS24KEc CPU core, a 5-port integrated 10/100 Ethernet switch/PHY and a USB host/device. With the RT5350, there are very few external components required for 2.4 GHz 802.11n wireless products. The RT5350 employs Ralinks 2nd generation 802.11n technologies for longer range and better throughput. The embedded, high performance CPU can easily manage advanced applications such as Wi-Fi data processing without overloading the host processor. In addition, the RT5350 offers a variety of hardware interfaces (SPI/I2 S/I2 C/PCM/UART/USB) to support a range of possible applications.

Applications

iNIC AP/Router

Features

Embedded 1T1R 2.4G CMOS RF Embedded 802.11n 1T1R MAC/BBP with MLD enhancement Embedded PA/LNA 150 Mbps PHY data rate 20 Mhz/40 MHz channel width Legacy and high throughout modes Compressed block ACK Bluetooth Co-existence Multiple BSSID (up to 16) WEP64/128, WPA, WPA2, WAPI engines QOS - WMM, WMM Power Save Hardware frame aggregation Supports 802.11h TPC MIPS 24KEc 360 Mhz with 32 KB I cache/16 KB D cache Supports 16-bit SDR SDRAM (up to 64 MB) Supports boot from ROM, FLASH USB 2.0 HOST/Device dual mode x1 Embedded 5-port 10/100 Mbps Ethernet switch and 5-port UTP PHY Supports 5 10/100 UTP ports Slow speed I/O : GPIO, SPI, I2 C, I2 S, PCM, UART, and JTAG Packaging and I/O voltage 12 mm x 12 mm TFBGA-196 package I/O: 3.3 V I/O 

Product Reviews From Sparkfun.com:

"Bought this thing because I am making an amplifier board for a project. Needed a good way to build Airplay function into it without having to go through some kind of external dongle.
This thing powers up and works great right out of the box. Super-easy to configure it to join your network, and it immediately shows up as an Airplay device on your devices. Literally 30 seconds it takes to get up and running.
It's very susceptible to power supply noise, so make sure your power supply has no audio-frequency switching noise, or post-regulator with an LDO before feeding power to this board. The DAC has essentially no PSRR, hence minus one star."

"The CUhead Pro does everything it says and more. My planned use was to mostly use the wifi module without the Arduino shield, but to have the shield capability for the future, so I bought a pair of Molex PicoBlade 1.25mm connectors/wires to provide power input and audio output and a 6dBi omni-directional antenna to connect for better range. I am using this to stream music from our Android tablets to our backyard.
I will probably buy more."

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