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Setting them high is not enough, use pullup or pulldown resistors, depending on what state is required.Originally Posted by ruijc
Hi Joe,
I'm using the same power supply for both.
I'm using a 7805 with 220uF cap and 2 diodes to lower the VCC to the transceivers.
About the port idle state...good call
i've set the port pins high at the beginning of the code for both ( TX and RX pics ) but the result is still the same
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