Also, are you probing pin 2 or pin 3 on the receiver? It looks like pin 2, since that's the digital output. Does pin 3 look more like a sine wave than square? It should. If pin 3 looks cleaner, use it instead.
And another thing. At 9600 baud, it'll take at least 24 characters of $55 or $aa (your preference) to 'sync up' the receiver before you can start sending data. Could be less, could be more, tolerances... 24 characters of 'preamble' has always seemed to work for me. And wait about 5-10ms after power up to start sending your data.
Bookmarks