This setup is using a RaspBerry Pi with the following hardware:
- RaspberryPi-B
- SANDISK 16GB 16 GB SD HC SDHC
- EDIMAX EW-7811UN WIRELESS 802.11 B/G/N 150MBPS NANO USB ADAPTER
- USB to Serial RS232 Com
And the following software:
- Debian Squeeze from the RaspBerryPi official Site.
- Kernel : 3.2.23
I initially got a number of problems with an old USB WIFI device and the USB hub was disconnecting after a few hours/minutes/seconds.
I have read many "theories" about the USB hub overheating (yes, it does overheat but not to the point to experience any marks on the device because it), and other theories about the PowerSupplies and the low power issue (the advise power should be between 4.7-5.0 V).
I have to admit the power supply in use with the RaspberryPi it's not the best in the market (completely unbranded) and with the above hardware gets around 4.74 and lower power, so I want to demystify a bit all what surrounds the power supplies and others as it is NOT always the problem but software and drivers..
As an out-of-the-box solution the Debian Squeeze seems fairly ok, but if you really want to get the RaspberryPi up and I running, I would rather recompile the kernel.
Since I recompiled the kernel, all the issues I have found the completely vanished and everything went fine ever since.
Obviously, this is a personal advise and I am not taking ny responsibility on any damage produced to the system (but it is also understood the RaspberryPi, at least at the present, is a very much development tool)