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Manual and quick start guide are well written. The last step is to click on connect button and the status label should change to 'Connected'.Р”Р‡inally you have the Stellarium connected to your telescope! Choose the desired object and pres the Ctrl+1 and realize that the telescope start pointing to the target.Comes with 6 element 25 mm 1.25' Plossl' eyepiece, 1.25' diagonal, 1.25' visual back, easy to use finderscope, aperture cover, tripod, and accessory/eyepiece tray. Then specify the ip assigned to the RaspberryPI and the port listening by nts instance, in my case 192.168.1. Then choose a desired name for your telescope, for example 'NodeJS-RaspberryPI'.

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Add a new telescope and choose the External software or remote computer. Open Stellarium and press Ctrl+0 or go to the telescopes window. The next step is to connect this nts instance with the Stellarium software. Now the Node Telescope Server (nts) is ready to receive instructions to move your telescope to the desired target. Remote stellarium control server running at port 5000 to a nextar telescope $ nts -s stellarium -p 5000 -t nexstar -i /dev/ttyS0 You should specify -t and -i arguments with your telescope type and file to the device file descriptor. Then start a nts instance to control your telescope.

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Identify the device uid assigned by the kernel to the serial port, aka ttyUSB0.

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Usbcore: registered new interface driver usbserial_generic Usb 1-1: generic converter now attached to ttyUSB0 Usbserial_generic 1-1:1.0: generic converter detected Run dmesg command and you shall see lines like these: $ dmesg Run the next lsusb command to identify the USB device to be initialized: $ lsusbР”В«us 001 Device 002: ID $ sudo modprobe usbserial vendor=0x4358 product=0x2523 Then connect your USB to Serial port adaptor to one of your available ports in the Raspberry Pi and connect the other side to the telescope.

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Then install the node-telescope-server module in your Raspberry running: $ sudo npm install node-telescope-server -g If the previous commands have returned older versions you should install node and npm manualy: $ wget $ tar zxf $ cd $. The first step is to install the nodejs and npm packages: $ sudo apt-get install nodejs npmР”Р‡irst verify that the current nodejs and npm packages have compatible versions: $ node $ npm -v As an alternative, you can connect the Raspberry with one wireless adaptor but that is outside the scope of this tutorial. Telescope Celestron (Nexstar Protocol) with GoTo featureР”Р‡irst of all you should connect your RaspberryPi to a router with a Ethernet wire.A Ethernet wire or a Wireless adaptor for your Raspberry Pi.The next diagram describes all the required elements to build your own homemade planetarium. This is a small tutorial to connect Stellarium with a Celestron telescope, and control it remotely. This command starts several servers defined in the config.json file. Telescope Nexstar: Remote stellarium control server running at port 5000 to a nexstar telescopeР”Вisabled remote web control server running at port 5001 to a nextar telescope Telescope Stellarium Dummy: Remote stellarium control server running at port 4001 to a dummy telescope

Telescope Dummy: Remote dummy control server running at port 4000 to a dummy telescope This command starts a stellarium control server listenning at port 5050 connected to a Nexstar telescope sending commands to /dev/ttyS0 device Remote stellarium control server running at port 5050 to a dummy telescope Real Nexstar example (Celestron telescopes) $ nts -s stellarium -p 5050 -t nexstar -i /dev/ttyS0 This command starts a stellarium control server listenning at port 5000 connected to a dummy telescope sending commands to /dev/null Remote stellarium control server running at port 5000 to a dummy telescope c, -config configuration file path to setup several servers Getting started i, -telescope-device system path to telescope device Installation $ npm install node-telescope-server -g Help $ nts -help

Compatibility with LX200 and RTS2 telescopes.

Compatible running with multiple telescopes at same time.

Interface control thought a HTTP REST API.

Interface control for Stellarium software.

With an easy of set of commands you will be able to connect your computer to a telescope and target it to the desired stellar object. Actually it is a port of C++ source to NodeJS. Node-telescope-server is a server to control telescopes remotely.

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