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Phil23
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Joined: 27/03/2016
Location: Australia
Posts: 1667

Posted: 12:08pm 07 Apr 2016

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After foolishly confusing the HC-05's that arrived yesterday as being ESP8266's I'm now trying to setup the HC-05 as a slave & give a Bluetooth connection a go.

Have the HC-05 connected to a CP2102, Tx & Rx Swapped, Teraterm ser to send CR+LF, baud rate set to 38400, default for command mode, but have also tried 9600.
Pulled the EN pin up with 3.3v from the CP-2102.

Not appearing be to get into the command state though, and not sure why.

The unit I have, have a button, indicated in the sellers listing as "Remove Button".

Anyone offer a little help here.

I have also noticed it is visible as HC-05 when I scan for Bluetooth devices, so presume it's not in command state when that is the case.

These are the ones I bought, also stamped ZS-040. Notice in the listing the "Remove Button Comment".

Onve I get access to it from the terminal, I assume this should then set it the way I'd need to connect it to the micromite.

[Code]
AT+ORGL ------(Restore the factory default state�j
AT+UART=38400,0,0 ------(Set transmission rate to 38400 bps, one stop bit and no parity bit�j
AT+NAME=MicroMite
AT+PSWD=0000 ------(Set pairing code to 0000
AT+Role=0 ------(Set if to Slave Mode
[/Code]

Can't seem to see a "Save" command, ahlah the old AT&W command Netcomm used to use, co assume changes are automatically stored.

Assume once I've configured it in the command mode, I can pair with is & then disconnect it & hook it up to the MicroMite & the connection should be re-established.

Edit:-

The led is flashing rapidly on the HC-05.
Edited by Phil23 2016-04-08

Phil23
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Joined: 27/03/2016
Location: Australia
Posts: 1667

Posted: 12:30pm 07 Apr 2016

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Command state issue solved, just needed to power cycle while EN pin held high.
I have it responding to AT commands now.

Would still like feedback on what the button might be & whether what I say about configuring it is correct.

Thanks

Phil.

jman

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Joined: 12/06/2011
Location: New Zealand
Posts: 711

Posted: 02:22pm 07 Apr 2016

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Hi

Take look here this might make using the module a little easier

HC05

Regards
Jman

TassyJim

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Joined: 07/08/2011
Location: Australia
Posts: 6266

Posted: 03:59pm 07 Apr 2016

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The module usually remembers the last connection and automatically reconnects when power is applied.

I am guessing that the "remove" button is used to remove any association.

It's a while since I played with the HC-05 and HC-06 and I am not in a position to play now.

Jim

VK7JH
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isochronic
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Joined: 21/01/2012
Location: Australia
Posts: 689

Posted: 10:55pm 07 Apr 2016

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I have a "duinotech" module ( I assume it is a HC05 ) "BT-BOARD V2.0"
but it doesnt have the button, only 4 ofthe pins are there with vacancies
for two others marked "state" and "key". Works fine at 9600 but I want
115kbs...can't get a response with AT etc so can't configure it..

Any suggestions or help ? ..

EDIT - it is absolutely identical appearance to HC-05...but is HC-06...

so very different software ...looks like "key" has to be held high for AT mode.
The info sheet is, of course, well, !@#$%^&* "not that useful", but does have different AT commands set ...geez !!
Edited by chronic 2016-04-10

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