MDBT42Q Software Serial on any pins not working

Hi,

Your issue in this case is you're trying to use software serial - it's a reasonably new addition and it struggles on Bluetooth boards with this kind of thing because the second data is received it prints it to Bluetooth, which uses up a bunch of CPU time which then interferes with reception/transmission.

If you actually use the first example on that page which is for hardware serial, you get:

Serial1.setup(9600, {rx:D25, tx:D26});
Serial1.on('data', function (data) { print("<Serial> "+data); });
Serial1.print("Hello World");

I just tried this on an MDBT42, and I get:

<Serial> H
<Serial> e
<Serial> l
<Serial> l
<Serial> o
<Serial>
<Serial> W
<Serial> o
<Serial> r
<Serial> r
<Serial> l
<Serial> d

so it works great.

So basically all you need to do is replace:

var s=new Serial();
s.setup(9600, {rx:D25, tx:D26});

with:

var s=Serial1;
s.setup(9600, {rx:D25, tx:D26});