Mon Dec 29 17:33:30 EST 2014

Cisco routers

I've got a box of cisco routers.  Maybe these can be repurposed to
ethernet boxes, possibly driving PIC chips ENC28J60[2].

Trouble is power though[1].  And these days it seems that just going
for something like a Beaglebone is probably better.

I keep coming back to the topology which has Ethernet (with PoE)
running to a Linux box, then 5m fanout for USB microcontrollers.

It seems really not worth the trouble to have the power overhead of
ethernet combined with a tiny uC.  If BBB is $45, in a couple of years
this is going to be nothing.

[1] http://electronics.stackexchange.com/questions/52349/why-is-ethernet-so-power-hungry
[2] http://www.ebay.com/itm/like/201244700646?lpid=82&chn=ps