Wiimu Information Technology A02 User Manual
WiFi and Ethernet Shield
With WiFi Audio
User Manual
MAY 25, 2013
Rev 1.0
Copyright © 2013 WiiMu Information Technology Inc.
Doc Title WiiMu-A02 WIFI Audio Specification
WiiMu Information Technology Inc.
Number
Version 1.2
WMB20130110
HISTORY
Version Date Description Author
K8
Document No.: WMB20130110 Page 2 of 15
Doc Title WiiMu-A02 WIFI Audio Specification
WiiMu Information Technology Inc.
Number
Version 1.2
WMB20130110
INDEX
Features .......................................................................................................................................................................5
1.1. Parameters............................................................................................................................................... 6
2. Hardware Description................................................................................................................................. 7
2.1. Description of hardware interface ........................................................................................................... 7
2.2. Mechanical dimension............................................................................................................................. 9
2.3. Audio output ............................................................................................................................................9
2.4. External antenna ....................................................................................................................................10
2.5. 10/100M Ethernet Port ..........................................................................................................................11
2.5.1. Connect the module with RJ45 with transformer .............................................................................. 11
2.5.2. Transfer the data from the module to user board via Ethernet interface directly............................... 11
2.6. USB host port ........................................................................................................................................12
2.7. Power supply .........................................................................................................................................13
2.8. Status LED............................................................................................................................................. 13
3. Software ....................................................................................................................................................14
3.1. Airplay introduction...............................................................................................................................15
3.2. DLNA introduction................................................................................................................................ 15
3.3. WiFi mode ............................................................................................................................................. 15
3.3.1. AP Client mode .......................................................................................................................15
3.4. Web Server setup ................................................................................................................................... 16
Document No.: WMB20130110 Page 3 of 15
Doc Title WiiMu-A02 WIFI Audio Specification
Features
Support 802.11 b/g/n networks
Support 10/100Mbps Ethernet
Standard WiFi and Ethernet Shield two in one
Support Internet audio streaming via Apple Airplay or DLNA
Support TCP/IP/UDP protocol
Support STA/AP/AP Client mode
Support UART and Ethernet Interface
Support audio output via 3.5mm audio jack
Built-in web server to easily configure the module
Support WiFi UART via AT command
WiiMu Information Technology Inc.
Number
Version 1.2
WMB20130110
Applications
WiFi speaker
WiFi audio docking station for smartphones
WiFi remote control
Portable WiFi base station with Airplay
WiFi/Ethernet shield two in one for Arduino
Document No.: WMB20130110 Page 4 of 15
Doc Title WiiMu-A02 WIFI Audio Specification
WiiMu Information Technology Inc.
Number
Version 1.2
WMB20130110
1. Overview
WiiMu-A02 module is developed by Wiimu Information Technology Inc. It could be used in wireless speaker,
wireless docking station, WiFi base station and WiFi remote control. It supports 802.11b/g/n standard with up to
150Mbps bandwidth. It could work at AP, AP client or station modes. It is fully compatible with Apple Airplay and
digital living network alliance (DLNA) streaming standards. With this module, you can play the music on your
speaker wirelessly from iPhone, iPad , iPod touch, Android devices or PC devices.
1.1. Parameters
Wireless
Hardware
Software
Certification FCC/CE
Standard 802.11 b/g/n
Frequency 2.412GHz-2.484GHz
Transmit
Receive sensitivity
Antenna options
Work voltage 5.0V (+/-5%)
Work current 170mA~300mA
Work temperature
Storage temperature
Size
WiFi working mode AP Client (by default)/AP/STA
Security WEP/WPA-PSK/WPA2-PSK/WAPI
Encryption WEP64/WEP128/TKIP/AES
User Configuration Web server
Software Update Web server
Audio streaming
protocol
Items Performance
802.11b: +20dBm(Max.)
802.11g: +18dBm(Max.)
802.11n: +15dBm(Max.)
802.11b: -89dBm
802.11g: -81dBm
802.11n: -71dBm
ExternalI-PEX
Internalon board antenna
-25 - 85
-40 - 135
33×48×3mm 28-pin SMT
AirPlay
DLNA
Table 0-1 WiiMu-A02 parameters
Document No.: WMB20130110 Page 5 of 15
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