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Inexpensive BT serial adapter for Sky Safari

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#76 patrizioitalian

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Posted 08 December 2014 - 10:36 AM

FINALLY I MADE IT... :)

 

Now I have a Home Made WiFi Module to control my Meade Telescope:

 

 

 

 

Unlike bluetooth version module, I did not have to reverse the pin 2 to pin 3 of the serial connector, I don't know why.

 

Video:

 

https://www.dropbox....ope 10.mp4?dl=0

 

 

Attached File  20141208_175050(0).jpg   78.9KB   29 downloads

Attached File  20141208_152644.jpg   60.62KB   26 downloads


Edited by patrizioitalian, 09 December 2014 - 07:44 AM.


#77 rumbert

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Posted 15 January 2015 - 01:29 PM

Hi everybody,

 

I'm trying to connect the Skysafari software to an Arduino board by using a bluetooth  module HC05. I'm using the LX-200 protocol.

 

I'm capturing the data send from the Skysafari, interpreted by the Arduino and finally sending the answer back.

 

This seems to be correctly working, I'm monitoring the messages in and out and there is nothing noticeable.

 

However, the Skysafari after sending three or four messages stops with the message 

 

"SkiSafari Plus can make wireless connection to the scope, but the scope is not responding. ..."

 

Well, the logs show that there are communication between them, so I suppose I'm missing something.

 

I attach the Skysafari log file in case could be useful.

 

Another interesting thing is that Skysafari starts its communication by sending three '$', I don't know the reason of this, and if is necessary to answer them.

 

Any suggestion???

SkySafariScopeLog-2015-01-15-09-39-05.txt

Sent ASCII at 2015/01/15 19:22:45 with error 0:
:GR#
Received ASCII at 2015/01/15 19:22:45 with error 0:
02:31.50#
Sent ASCII at 2015/01/15 19:22:45 with error 0:
:RS#
Sent ASCII at 2015/01/15 19:22:46 with error 0:
:Q#
Sent ASCII at 2015/01/15 19:22:46 with error 0:
:GD#
Received ASCII at 2015/01/15 19:22:46 with error 0:
s89*15#

Edited by rumbert, 15 January 2015 - 01:32 PM.


#78 rumbert

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Posted 16 January 2015 - 12:17 PM

Hi again,

 

I've found some useful information that can answer some of my doubts.

 

The three '$' are used to enter in the command mode of the wifly. They aren't used so they don't affect to the communication process.

 

Thus, the problem is about the LX200 messages returned from the Arduino. I'll continue looking for the solution.



#79 btschumy

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Posted 16 January 2015 - 03:50 PM

Rumbert,

 

I think the problem is your returned Dec format:   s89*15# 

 

The specs say it should look like:

 

GD# Get Telescope Declination.
Returns: sDD*MM# or sDD*MM’SS#
Depending upon the current precision setting for the telescope.

 

That "s" is a sign character, not a literal "s".  Try making that +/- and see if that works better for you.



#80 rumbert

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Posted 28 January 2015 - 03:02 PM

Rumbert,

 

I think the problem is your returned Dec format:   s89*15# 

 

The specs say it should look like:

 

GD# Get Telescope Declination.
Returns: sDD*MM# or sDD*MM’SS#
Depending upon the current precision setting for the telescope.

 

That "s" is a sign character, not a literal "s".  Try making that +/- and see if that works better for you.

 

Thanks a lot, this silly mistake was the real problem.

 

Currently, both the SkySafari and the Arduino board connect an exchange data.




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