this point (as hard to decipher they appear to be for anyone but
myself) I have done this ...
"input to the TX XBee and the output of the RX XBee", I assume you
were comparing signals on the 2 different modules at the same time."
yep, exactly that ...
"This will only work properly with the probe gnds connected to the
individual boards, which will electrically connect the gnds of the 2
boards together."
That was my original point - It doesn't appear to do this ... I had to
physically connect them at the circuit - a bit of wire from one
breadboard to the other for it to work... - After further fiddling and
swapping the probes from input A to B I think one of the probes is at
'fault' (either that or I am)...
I have put both probes on the same pin of the RX (receiving XBee) and
connected the gnds to the battery power '-ve' that is powering the
same unit - I get the same signal on both scope probes (as expected) -
yet when I disconnect the ground on the 'fluke' brand probe both
signals go whacky (independent of whatever Input it is in) - if I
disconnect the 'phillips' brand probe both signals are still good
(regardless of it now being an 'antenna')
- I reckon however that further discussion is just going to get me
confused or at least you a little unfairly fatigued until I read up on
my scope basics ... At first I thought it was the XBee's but its
really my misuse or misunderstanding of scopes (or a potential fault
in the probe, unlikely though)
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