Then hit connect to connect Stellarium to the telescope server running on the Raspberry Pi. Select External software or a remote computer and enter the IP Address of the Raspberry Pi and the TCP port the Telescope Server is listening on (in my case 5000). To open the telescope configuration use Ctrl+0 and configure the telescope. Then I configure the remote telescope connection in Stellarium. Once started the Telescope Server started receiving RA and DEC position information from the telescope mount. Replacing TCPPort with the port I want the Telescope Server to listen on and SerialPort with the USB to Serial device entry. To start the telescope server run TelescopeServerNexStar TCPPort SerialPort. Since I have a Celestron mount, I use the TelescopeServerNexStar. This created three binaries: TelescopeServerDummy, TelescopeServerLx200, and TelescopeServerNexStar. Then I compiled the Telescope Server by running make in the telescope server src directory. This was needed to pull the telescope server software from SourceForge. Once the Raspberry Pi was configured I used apt-get to install the subversion package. I also had an old USB to Serial adapter (which actually does not work with Windows 7/8, but the Raspberry Pi recognized it without issue) which is connected to one of the USB ports on the Raspberry Pi. I had a spare 8 GB SD card and I installed the Raspbian image on the card, booted, and configured the Raspberry Pi. Over the 4th of July weekend I started tinkering with it to use it to interface with Stellarium in order to remotely control my telescope. I have a Raspberry Pi which I received as a vExpert gift from SimpliVity a couple years ago.
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