I am using the TX434/RX434 combo. One Arduino board is connected to the TX434 and the other to RX434. I have the TX from board 1 connected to the transmitter and sending out data. And the Data out from the RX434 connected to the RX of board 2. The 434s are on a breadboard. The receiver (RX434) receives and I can see the received signal on the scope. However, as soon as I connect the Data out of RX434 to RX of board 2, the line goes high and remains high. Board 2 is a Duemilanove. And I have the USB disconnected from laptop once programming is done.
Not sure what I am doing wrong. Help! :)