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by cowasaki
Fri Oct 11, 2013 8:12 pm
Forum: Other projects
Topic: Navit on raspberry pi
Replies: 8
Views: 40039

Re: Navit on raspberry pi

Having got Navit up and running I have now found (initially) that it will only actually navigate to an AREA rather than a street. I haven't actually got it navigating at all yet but it only accepts areas rather than streets. Has anyone got it working to a street level? Has anyone got an alternative ...
by cowasaki
Fri Oct 11, 2013 8:07 pm
Forum: Other projects
Topic: Navit on raspberry pi
Replies: 8
Views: 40039

Navit on raspberry pi

After a bit of messing about from several sources and playing with the xml file I have come up with the following install routine: >>This is with a fresh installation of raspian os. I'm using noobs 1.3 for this set of instructions. We will be downloading the maps etc on the same computer used to get...
by cowasaki
Fri Oct 04, 2013 12:43 pm
Forum: Beginners
Topic: GPS module
Replies: 5
Views: 1487

Re: GPS module

Now I just need a UK navigation program :)
by cowasaki
Fri Oct 04, 2013 12:42 pm
Forum: Beginners
Topic: GPS module
Replies: 5
Views: 1487

Re: GPS module

Thank you.

I am building a computer into my landrover so the GPS was really rather useful. I now have a screen which tells me that the GPS is working :D
by cowasaki
Thu Sep 26, 2013 3:52 pm
Forum: Beginners
Topic: GPS module
Replies: 5
Views: 1487

Re: GPS module

Thanks I will try then wheni get home.
by cowasaki
Thu Sep 26, 2013 2:10 pm
Forum: Beginners
Topic: GPS module
Replies: 5
Views: 1487

GPS module

I'm trying to setup a GPS module. I've bought the right one and looked at this page: http://blog.petrilopia.net/linux/raspberry-pi-gps-working/ How to install USB GPS dongle to Raspberry Pi Raspbian Wheezy. "I needed GPS on my Raspberry Pi to do some wardriving and I found Globalsat BU-353 GPS USB r...
by cowasaki
Mon Jan 30, 2012 7:19 pm
Forum: Other projects
Topic: Astro photography
Replies: 27
Views: 16131

Re: Astro photography

<t>timgiles said: <br/> <br/> <br/> Hi – I posted to Bit-Techs preview of the Raspberry Pi my intention with the second unit I purchase (probably in 4 to 6 months time) to develop the RPi as an improved ultra low power guider.<br/> <br/> Whilst yes, we can all hope for a 'perfectly' aligned scope, t...
by cowasaki
Mon Jan 30, 2012 5:31 pm
Forum: Other projects
Topic: Astro photography
Replies: 27
Views: 16131

Re: Astro photography

<t><br/> Redrobes said: <br/> <br/> Whats the advantage of doing it all with a CCD + PC ? After all your just trying to use a few pixels of the CCD as photo diodes and ignoring all of the rest anyway. Is it just the convenience of being able to pick the star off of the LCD display to make the line u...
by cowasaki
Mon Jan 30, 2012 4:54 pm
Forum: Other projects
Topic: Astro photography
Replies: 27
Views: 16131

Re: Astro photography

Dazzler said:


Cowasaki - is that Darren from TP?


It certainly is
by cowasaki
Mon Jan 30, 2012 3:43 pm
Forum: Other projects
Topic: Astro photography
Replies: 27
Views: 16131

Re: Astro photography

<t>Redrobes said: <br/> <br/> <br/> Isn't the normal method to use a quadrature photodiode and drive the tracking motors from the error off of the 4 photodiodes instead of using a full CCD. Whilst I agree that this does mean that you need the tracking star in the middle of the tracking scope, it doe...
by cowasaki
Thu Jan 26, 2012 3:53 pm
Forum: Other projects
Topic: Astro photography
Replies: 27
Views: 16131

Re: Astro photography

<t>PaulBuxton said: <br/> <br/> <br/> cowasaki said: <br/> <br/> <br/> I could easily build the entire device using an arduino but the video tracking part requires something a tad more powerful and I think that this is going to be it <br/> <br/> <br/> Definitely recommend checking out the OpenCV lib...
by cowasaki
Thu Jan 26, 2012 2:52 pm
Forum: Other projects
Topic: Astro photography
Replies: 27
Views: 16131

Re: Astro photography

<t>Sorry I'll explain…<br/> <br/> The camera is attached to a second smaller scope which is attached to the same mount as the MAIN SCOPE.  The main scope is moved to point at the primary target and then whilst it is still pointing at this primary target the second "guide" scope is moved slightly so ...
by cowasaki
Thu Jan 26, 2012 2:42 pm
Forum: Other projects
Topic: Astro photography
Replies: 27
Views: 16131

Re: Astro photography

<t>Remember that these things are tiny!  The movement of LESS than one pixel for the hole star can be detected by interpretation of the shape of the star across multiple pixels.  It does work and it is the basis of all long exposure astronomy photography.<br/> <br/> I could easily build the entire d...
by cowasaki
Thu Jan 26, 2012 2:10 pm
Forum: Other projects
Topic: Astro photography
Replies: 27
Views: 16131

Re: Astro photography

<t>It is if you only want to take a 10 second shot of the moon but it you want to take 100 x 20 second shots of deep space in order to get high quality images of a nebula or distant galaxy then you need the scope to be held even more still than a high quality mount can manage.<br/> <br/> Using a sec...
by cowasaki
Thu Jan 26, 2012 1:56 pm
Forum: Off topic discussion
Topic: What was your first computer?
Replies: 431
Views: 161559

Re: What was your first computer?

<t>VIC20 which was owned by my brother but I used in more than him whilst learning programming on it and the Commodore PET computers which we had at school.<br/> <br/> Followed by Amstrad CPC464 then CPC6128 at home whilst programming BBC model B at school and friends.<br/> <br/> Then onto Atari ST1...
by cowasaki
Thu Jan 26, 2012 1:50 pm
Forum: Other projects
Topic: Astro photography
Replies: 27
Views: 16131

Re: Astro photography

<t>I am looking at building a stand alone device for controlling a telescope mount, camera, focuser, etc etc.  I could easily do all that with an arduino OTHER than the guide camera bit which is basically a device that looks at a video signal of a star and moves the scope by minuscule amounts in ord...

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