Recently Browsing 0 members
No registered users viewing this page.
By Craig Shaw
I have searched SGL for a tutorial incase this has been covered so forgive me if it has. I've also searched the web in general and couldn't find a full tutorial to do this, so i have collated a couple of tutorials that make it work.
I have managed to get SkySafari to work with a £32 ish Raspberry Pi3 and the cable that came with my scope with a usb to serial converter - the same things you need for connecting to a PC. It allows me to control the scope using the SkySafari Plus app on my tablet or phone AND it creates a wifi hotspot on the Raspberry Pi so it doesnt have to be on a network to work. This also turns the pi into a natty mini wireless router which is handy if you travel since it gives you a private wireless network when plugged into hotel wired internet ?
I AM NOT RESPONSIBLE FOR ANY DAMAGE THAT MAY OCCUR TO YOUR HARDWARE BY FOLLOWING THIS POST OR ANYTHING LINKED TO THIS POST
It takes about 30 mins to do the tinkering, make sure you use the latest LITE version of raspbian.
Raspberry Pi 3 Portable power to it (preferably) Raspbian Lite Image file Appropriate cables to connect your Telescope to it via USB Computer connected to network Network cable to connect Raspberry Pi for initial setup A GoTo / Push To etc telescope mount compatible with SkySafari Plus / Pro A nice case for the Raspberry Pi
You need to know a little about accessing the Raspberry Pi by SSH.
For windows, use Win32 Disk Imager to burn the latest Raspbian LITE image to a micro sd card. Open the card on the pc (called boot) and make a blank file on it called 'ssh' - no file extension. This enables ssh access automatically.
Stick it in your Pi and plug it into your network router and a power source.
Find its ip address - i log into my router by typing its ip address into a web browser and look at connected devices, there are other methods though.
I use a program called Putty to ssh.
There are many tutorials on how to do the above and it isnt as hard as it first seems.
I used 2 tutorials to do this and i will link to them directly as the original authors explain it better than me. The first one is muuuch longer than the second which is just 3 steps so bare with it.
When the first tutorial suggests a reboot after the upgrade, DO IT! Then ssh back into the Pi and continue.
Don't bother rebooting after tutorial 1 either.
Tutorial 1 - Turn Raspberry Pi into a portable wifi hotspot
See 'CONNECTING' after doing step 2 in the next tutorial to actually connect to the scope as what you have just done changes it a bit.
Tutorial 2 - Make it talk to SkySafari App and the 'Scope
You can now unplug the pi from your router. Plug your USB to serial adapter into the pi, your telescope cable into that and connect it to your scope as you would do with a pc (mine is into the AutoStar hand box) and use it as a stand alone adapter just like the £200 SkyFi adapter!
To connect SkySafari to the pi you simply connect your tablet or phone to the pi's network like you would any other wifi network, i called mine Scope, connect using the security key / password you made up in tutorial 1. Open SkySafari and follow step 3 in the second tutorial but with IP address 192.168.0.10 - the port is still 4000 (unless you changed it)
If you are at home and your cable is long enough to reach your router you can plug the pi into that and use your home internet too - which you cant do with the SkyFi adapter!
I am going to shorten my serial cable to make it a neater package, i can always solder new plus to make an extension if i ever need one.
I am also working on finding out how to make it share usb internet so a 4g dongle can be plugged into it when out and about since when you connect to the pi's wifi in the field you will not have internet on the device connected to it.
Also the Pi could possibly be used for imaging or tracking, someone on here will probably know more on this.
I'm making a tentative foray into guided AP, and have got a ToupTek GCMOS01200KPB Colour guide cam from FLO (to use on an ST80 I picked up from the forums).
I can't get PHD2 to recognise the camera, in fact I can't even get the ToupTek software to see the camera. I wonder whether anyone else with experience of this camera, or Windows 10 might be able to help?
I managed to overcome the initial problem of Windows recognising it as a 'USB2.0 Camera' even thought I had 'installed' the DirectShow driver that came with the camera. It seems that running the driver installation program didn't actually install the driver, it just put the necessary files on my hard disk. I then had to do the windows thing of selecting 'update driver', 'have disk', etc. to point at the ToupCam.inf file that had been copied onto my laptop. After this, when I plug in the camera it correctly recognises it in Device Manager correctly as a GCMOS01200KPB camera (now under 'Imaging Devices' in device manager rather than 'Cameras'). The red LED on the camera flashes when it is connected.
This took me about a week to work out, so I was feeling quite pleased with myself - until I tried running any camera software. Running the ToupSky software showed 'no device' under cameras. I installed the ASCOM drivers, and when I run the ASCOM diagnostics it appears to see the driver but cannot connect to the camera.
I'm stumped. Can anyone point me in the right direction?
Hello there StarGazers or shall I say CloudGazers! Hahahaha!
I'm sorting out an auto guiding rig for when the clouds vanish eventually. I'm using the Raspberry PI Model 2 with Lin_guider. I'm after either the following CCD's:
QHY5L-II Mono or ZWO ASL120MM Mono
Let me know if you have any spare or have recently upgraded.
I was going to go with an Altair Astro mono GPCAM but currently there is no support from lin_guider or Linux drivers as of yet.
I have for a long time looking and read about those Linux astroservers. I'm a Windows user and don't know much about Linux. But now it's seems that they have come very far with the functions they can do with a Linux and Raspberry (one card computer) system to control the telescope and connected equipment.
With a small Raspberry computer you lower the powerconsumption a lot, the weight is much lower and it's very small in size, you can mount it direct on the telescope. It's very cheap and you can divide the system on many computers if you wish. It's very amazing that a small thing like this can do so much! And the best of all, you can do a lot of the work in your Windows computer without any Linux installation, only Linux in the Raspberry computer, maybe later if I want to do more advanced things I have to install Linux in my PC, but not yet.
I just have to give it a try.
I will use the Kstars with Indidrivers and the Ekos software. One thing I must have is that the astroserver must be independent of the network and clients. Just use the client to start the process and have some overview. It doens't then matter if the network or clients goes down, the server will continue its work.
Do you find it interesting?
I have tried to document the steps I do when building this Linux/Raspberry system and have it on my homepage:
Just six days ago I know almost nothing about Linux and Raspberry, but now I'm almost there to have a working system. I had a massive help from the Swedish forum Astronet to achive this.
I update my homepage and correct it when I get more knowledge and experience.
Linux for astronomy use has evolved very much the last years, earlier it looks so complicated, now even I can setup a system, or at least I hope to get it to work, I'm not there yet. But it's the most exiting I have done for many years!
This is an open project "Ubuntu Astronomy" for amateurs.
Free Live DVD distributive designed for astronomy amateurs. This DVD contains different astronomical programs, for example: planetariums, image processing, astro-hardware control, INDI drivers, etc.
Based on Ubuntu 16.04.
You can download *.iso from its page https://sourceforge.net/projects/ubuntu-astronomy-16-04/