PIC 'n IR
Richard Martin email (remove spam text)
A good place to start if, it fits your design scheme, is to use a
'standard' universal TV remote control transmitter, <$US10
hereabouts, and just use the PIC to Rx and decode. You can have
several Tx devices and they are easily replaceable when lost or when
eaten by the dog (or would it be a lion in .ZA?). Place Rx (IR
photodevices) about the house, OR-ed together, so you can
turn on the lawn sprinklers from the bathroom, etc..
Most of the encodings used in U.S. and Europe are on the Web
but it's pretty easy to 'milk' the codes of a variant Tx widget.
You get as many numeric 'channels' as you choose and can, e.g.
use the special "Record" key to turn everything on at once.
Completely impressing the neighbors.
John De Villiers wrote:
See also: www.piclist.com/techref/microchip/ios.htm?key=ir
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