http://capnbry.net/linkmeter/snapshots/bcm2708/
I currently have the heatermeter v4 i built that uses the raspberry pi
and there are certain circumstances where i need it to be a access point of its own and there are some situations where i can link it to my router.
so what i was thinking was building a switch into my rasberrypi gpio .... connect 1 end of the switch to a 3.3 v and the other end to one of the pins that can read. if it reads voltage it boots to a wireless only mode. if it reads nothing it boots to a AP mode
my expeirence is limited. maybe it does not even need to be a dual boot situation but loading one settings or another but i need it to be done easily with a switch because in a field i wont have the option to change things via ssh or webserver.
Any ideas would be great
by the way all credit goes to its creator Bryan Mayland he is the man and did so much on this project i am just trying to help