Controll for... Anything!
the 555 or the 21th Century, a Controll Microchip with all you need.
And I mean, ALL
you need, from the thing itself, to a Design program that simulates the
workings of it on your PC, to Analogue entry and interface, they'd got
it all figured out.
you can do
a lot for
your Project by browsoing that Site!
and recievers, too, and even IEEE
802.15.4 - ZigBee RF Transceivers, so go there and
3 more goodies: