So, why put up with the hassles that IR brings when we can move to RF
using technologies such as BlueTooth or ZigBee, and be able to move
around at will?
Sadly, the Bluetooth serial port adapters all seem to require 45 mA to
50 mA -- I checked several manufacturers. OK for the shack, not so good
for PDA or field use :-( OTOH, there are tons of USB Bluetooth dongles
that sell for under $20 -- even without rebates! :-)
Zigbee may be better for current consumption...
RFM modules, which don't have protocol stacks and error correction,
have the advantage of needing very tiny currents. Hmmm, maybe a 6-pin
PIC plus an RFM module and we'd be able to create a transsparent,
low-current, reasonable performance wireless link...
Lyle KK7P
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