Thanks for replies, even the "funny one".
Usual response - don't quit you day job....
Now for real...
Murphy said "it works better when you plug it in " and that is MY starting point.
I usually troubleshot from START to KNOWN result and if I get no KNOWN result I just back down.
I also start with an assumption that the device will respond to START condition.
The assumption here - from other similar devices experience - the LED is an indicator , the question posted was
- what kind of indicator.
START - plug if in - power ONLY
RESULT - LED lights up
SUCCESS
Now - the above SUCCESS needs to be further analyzed .
1. Is in ONLY reacting to power ?
2. Will it supply actual state when probed by software ?
Still - no need to have anything wired BUT the power, hence NOT physically connected to other devices.
Now lets do this
Use OS to see what Bluetooth status is as far as OS goes
1. Device is identified as "HC-05" and state is "Not setup"
2. Clicking on "not set up"
Request for ID is made
3. Standard , default, HC_05 , even Chinese ID is "1234"
4. After "Confirm"
LED off for few seconds
State "Connected"
State "Disconnected "
LED flashes in about 2 seconds intervals
Any comments on that sequence?
The fast flashing has not be been reliably duplicated.
PS
Off topic
Chinese may not play fair, however, if they deliberately make junk,
as implied by comments, what makes anybody think they are that stupid and
will be able to stay in business ?
I distinctly recall drill bits , made in another county ,
which you could not drill holes in cottage cheese with ...
That country no longer makes them...
