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PostPosted: Sun Oct 30, 2011 5:20 pm 
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Hello community,

I`m trying to start up Claude`s Deltavawe Papymerlin BT-module.
In my case it is internal wired to Merlin`s HC jack.
No other device is plugged into the HC jack at the same time.
Merlin is switched on and BT module`s LED is blinking.


In Papywizard on Nokia N810 I opened the Bluetooth menu.
In the device list BT module appears as " ? PapyMerlin ".
I choose this " ? PapyMerlin " device and the next window to interconnect appears.
The box "Passcode" is automatically filled with a 4-digit number which varies each time I try this procedure.
The box "trustable device" is selected and I click on "OK"
After this I get the message "interconnection failed. Authentication failed"

Is there a special 4-digit passcode I have to type in or is autofill OK, too?

Any ideas what`s wrong?

Oliver








Last edited by Undertable on Sun Oct 30, 2011 5:26 pm, edited 1 time in total.

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PostPosted: Sun Oct 30, 2011 6:31 pm 
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just use the basic passcode for bluetooth 1234 which should be ok :)

Vincèn

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PostPosted: Sun Oct 30, 2011 8:04 pm 
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Hi Vincèn,

thanks for Your answer.
code 1234 was accepted and it seemed that PapyMerlin was interconnected.
Then I tried to connect in papywizard "connecting, please wait..."
BT`s LED changed from blinking into permanent lighting.
Then I got the message "connection failed"
After clicking "close" the LED was blinking again
Tried it several times with the same result.

any idea?














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PostPosted: Sun Oct 30, 2011 8:07 pm 
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Undertable wrote:
thanks for Your answer.
code 1234 was accepted and it seemed that PapyMerlin was interconnected.
Then I tried to connect in papywizard "connecting, please wait..."
BT`s LED changed from blinking into permanent lighting.
Then I got the message "connection failed"
After clicking "close" the LED was blinking again
Tried it several times with the same result.

LED Is supposed to be solid when link is established with Papywizard and blinking when it's not connected. After that I'm not familiar with Papywizard on Nokia. Are you able to try from a computer ? to be sure your bluetooth merlin head is working fine ?

Vincèn

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PostPosted: Sun Oct 30, 2011 8:16 pm 
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I`ve never tried to control Merlin by computer before.
But today I tried it with T&C controller (disconnectet BT module) this was running fine


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PostPosted: Mon Oct 31, 2011 5:34 am 
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Undertable wrote:
I`ve never tried to control Merlin by computer before.
But today I tried it with T&C controller (disconnectet BT module) this was running fine

You should try it with computer to be sure all your bluetooth wiring is ok :) Just install Papywizard (do your computer have integrated Bluetooth ?)

Vincèn

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PostPosted: Mon Oct 31, 2011 5:52 am 
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I have both, a notebook with win7 and a netbook with Win XP.
What do you suggest for Papywizard?

Which version do you suggest for download?
http://www.papywizard.org/wiki/Download

BTW: My Nokia N810 with installed papywizard works properly.
I used it for a while with an other Merlin head


Last edited by Undertable on Mon Oct 31, 2011 5:58 am, edited 1 time in total.

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PostPosted: Mon Oct 31, 2011 6:28 am 
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Undertable wrote:
I have both, a notebook with win7 and a netbook with Win XP.
What do you suggest for Papywizard?
Which version do you suggest for download?
http://www.papywizard.org/wiki/Download

Use this one on Win XP :)

Undertable wrote:
BTW: My Nokia N810 with installed papywizard works properly.
I used it for a while with an other Merlin head

Do you mean same Nokia N810 phone controls fine an other Bluetooth Merlin head ? if so, problem comes from the bluetooth module on this one or the head itself !

Vincèn

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PostPosted: Mon Oct 31, 2011 6:35 am 
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I installed Papywizard 2.1.21 on the Win7 notebook.
Adding the BT-module to the notebooks BT device list was no problem using code 1234
"PapyMerlin" is in the list (without a question mark)
Unfortunately the connection in papywizard failed, too








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PostPosted: Mon Oct 31, 2011 6:37 am 
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Undertable wrote:
I installed Papywizard 2.1.21 on the Win7 notebook.
Unfortunately the connection in papywizard failed, too

I told you to test it on WinXP not Win7 as I think there is some issues between papywizard and win7 not yet resolved !

Vincèn

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PostPosted: Mon Oct 31, 2011 6:45 am 
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vincen wrote:
Do you mean same Nokia N810 phone controls fine an other Bluetooth Merlin head ?

Yes

vincen wrote:
if so, problem comes from the bluetooth module on this one or the head itself !

Didn´t test the head before I modified it. I use the same type of BT module in my other Merlin head and that one works fine.
Hope I didn`t kill something with my wiring but I pointed out that a component on the BT module is getting hot.
Don`t know if this is normal.




Last edited by Undertable on Mon Oct 31, 2011 8:06 am, edited 1 time in total.

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PostPosted: Mon Oct 31, 2011 7:26 am 
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vincen wrote:
I told you to test it on WinXP not Win7 as I think there is some issues between papywizard and win7 not yet resolved !

I tested with the Win7 machine before I read You`r posting

On the XP netbook the result is not better.
I pointed out that the Message box with the red crosses appears immediately.
It seems that it doesen´t try to get a connection before.

OK I have to go to work now. Perhaps I`ll wire the BT-module from the other head to this one and try again.
Otherwise I can also try to test this BT-module with the other head.

Thanks for You`r support so far.

Best Regards
Oliver








Last edited by Undertable on Sat Nov 19, 2011 2:46 pm, edited 1 time in total.

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PostPosted: Mon Oct 31, 2011 8:15 am 
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Undertable wrote:
Didn´t test the head before I modified it. I use the same type of BT module in my other Merlin head and that one works fine.
Hope I didn`t kill something with my wiring but I pointed out that a component on the BT module is getting hot.
Don`t know if this is normal.

Hum it should not be really hot ! I think you should double check your wiring between the BT module and the merlin electronic, something is probably wrong there :/

Vincèn

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PostPosted: Mon Oct 31, 2011 8:37 am 
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You let the blue magic smoke¹ escaped?

¹ http://en.wikipedia.org/wiki/Magic_smoke

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Frédéric

Canon 20D + 17-40/f4 L USM + 70-200/f4 L USM + 50/f1.4 USM
Merlin/Orion panohead + Papywizard on Nokia N800 and HP TC-1100


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PostPosted: Mon Oct 31, 2011 12:45 pm 
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I didn`t see the "blue smoke" but it`s quite possible - I`m a mechanic You know, no electronics engineer.
However I gave my best and tried to do it referring to my first Merlin modification.


Perhaps Claude will comment something - I think he should know the behaviour of his module (hot component)

Oliver


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PostPosted: Mon Oct 31, 2011 1:54 pm 
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Such chip should not get hot; I think there were a problem in you wiring, and you burned something...

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PostPosted: Mon Oct 31, 2011 1:58 pm 
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fma38 wrote:
Such chip should not get hot; I think there were a problem in you wiring, and you burned something...

First I would double check the wiring :) perhaps you are a lucky and it's not dead ;) worth the try !

Vincèn

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PostPosted: Mon Oct 31, 2011 6:04 pm 
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I checked BT wiring by comparing with wiring of the working Merlin and found no mistake so far.
Tested the working Merlin again and found out that its BT-module is getting warm, too.
I can`t touch the component directly because I glued that BT-board into Merlin`s rear cover.
But in the area of the hot component, the bottom side of the PCB is getting warm, too




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PostPosted: Mon Oct 31, 2011 7:02 pm 
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interesting news:
I soldered the new BT-module to the switch of the old Merlin head and there it works!
BT module is OK. Connected to the old Merlin head the "hot" component is getting a little bit warm but not hot.
What does this mean now?

new Merlin head has a problem? But with T&C controller it is running.

BT-module has a problem with the higher voltage?
New head: 2 x 7.4V = 14.8V
orig head: 8 x 1.2V = 9.6V






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PostPosted: Mon Oct 31, 2011 8:12 pm 
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good news: I have connection now :)

I reflected about what else could be wrong. The electronics housing is conductive.
I assembled the jack from the wireless trigger (YONGNUO RF-602TX) in the housing. One of its contacts is connected to the housing in this way.
I desoldered this wire and got BT connection! Nevertheless the BT-component is getting hot.




Last edited by Undertable on Mon Oct 31, 2011 8:14 pm, edited 1 time in total.

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PostPosted: Mon Oct 31, 2011 8:31 pm 
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Current at Merlin`s power switch is 98mA.
Not moving, just Merlin and BT on

At my older Merlin it`s just about the same, wobbles between 98 and 100mA
without BT it`s 36,3mA




Last edited by Undertable on Mon Oct 31, 2011 8:42 pm, edited 1 time in total.

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PostPosted: Mon Oct 31, 2011 10:00 pm 
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at the end I tested my new Merlin with the original power supply.
The "hot component" does no longer getting hot, just warm to the touch.

All in all it seems to me that higher voltage is no good for the BT module.
If I am right there are two possibilities:

1.) supply the BT with 14.8V and provide the mentioned component with additional cooling or
2.) reduce the voltage for the BT module

Please feel free to give Your opinions what would be the best and how to implement
(simply gluing a small block of copper or aluminium with heat sink glue on the component? Which glue? Where availlable? Circuit layout with list of parts, understandable for mechanics)

Best regards

Oliver




Last edited by Undertable on Tue Nov 01, 2011 7:53 am, edited 1 time in total.

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PostPosted: Mon Oct 31, 2011 10:49 pm 
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I think the component getting hot is the voltage regulator, and with 14.8V, you should reach the limit it can dissipate.

I would add another voltage regulator before the BT module, to downscale the power supply from 14.8V to, say, 8V. Just use a simple LM7808...

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Canon 20D + 17-40/f4 L USM + 70-200/f4 L USM + 50/f1.4 USM
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PostPosted: Tue Nov 01, 2011 3:36 pm 
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fma38 wrote:
I would add another voltage regulator before the BT module, to downscale the power supply from 14.8V to, say, 8V. Just use a simple LM7808...

Looks like the easiest and safiest way to do ;)

Vincèn

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PostPosted: Tue Nov 01, 2011 5:00 pm 
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fma38 wrote:
...voltage regulator...Just use a simple LM7808...

Good idea, thanks for that.
Can I order this one for example and is the wiring OK as mentioned below?




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