hi read about virtualwire and found that it would be useful for some ideas i have. i would like to try it, but i wasn't able to find the receivers/transmitters indicated in the documentation.
I live in italy, near napoli. Is there a place (either web or "physical" shop) where i can find cheap rf transmitters, receivers or transceivers for use with virtualwire library?
I found these on ebay, very cheap (~6$ for a couple tx+rx):
do you think they can be ok? there it says that the rx output high value is half of Vcc. So i guess i have to feed it with 10V to make the values match with arduino's input pin voltage levels... is it right?
In the end, can i use rf devices working at different carrier frequency (different than 433mhz)?