Accessing RPi It is possible to configure the adapter using ssh over Ethernet, but it is a lot easier to see error messages if a display screen is directly attached. Power supply There have been reports that wireless adapters take a lot of power, but the Raspberry Pi with an EW‐7811Un adapter runs on a Samsung Micro USB mains charger, a standard Kindle power supply and even the Kindle lead attached to a USB hub on a laptop running on battery power. No other modifications were made to the software. The driver is a tar.gz file and needs to be unpacked twice. Software The software used was the Debian squeeze package debian6-19-04-2012.img plus a replacement driver module (8192cu.ko) available from here. The guide may be useful for installing other wireless adapters as well and for configuring WPA‐PSK. Hardware Raspberry Pi wireless adapter This guide is about installing the Edimax EW‐7811Un nano wireless adapter on a Raspberry Pi with a wireless router supporting DHCP and configured to use WPA2‐PSK.
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