In the heart of the system is the rDUINOScope Software, some 2500 rows, controlling all HW components and handling communcation with external devices (Stellarium, … This driver provides both telescope and focuser interfaces each of which may be used by separate programs. Remove the timing belt and finish your work with a layer of black paint around the plywood. You only need to this one time! We get the reticle named _HELLO_. It can communicate ( a two-way process ) with a smart controller to direct the mount to a target using either a LX200 protocol or the mounts Ascom driver. If someone have the arduino code .... Hello,Great project! Thanks for all the hints and tips.
I’m a teatcher in a french scool and try to make a motorised dobson telescope with student. Maybe this comment could helps you: https://github.com/juanrmn/Arduino-Telescope-Control/blob/master/main/python/ldevice.py#L206. At this window, choose "add telescope". To send a "slew" command to the telescope, select an object (e.g. 20 days ago. 26 days ago. It´s a very simple interface, where a 470 ohm resistor is used to pull-up the encoder's output and a 10K trimmer is used just as a voltage divider. By using quadrature signals, we can know the direction of movement (if one channel is leading or lagging the other); It's also possible multiply the resolution by 2 or by 4 (quadrature proprieties); We can calculate the position by counting the number of pulses (CW and CCW). The box I made will never win a beauty contest, but it's big just enough to fit everything I need, it's light and portable and the most important, hold tight and protects the electronics. The purpose of this project is to connect a telescope to a computer through the mount guide port (ST-4 port) using an arduino. I took these sensors out of an old printer, and I don’t know the model nor any helpful reference. All such applications talk to telescopes using the common ASCOM interface. Oct 10, 2018 - Control Your Telescope Using Stellarium & Arduino: I am fascinated by astronomy since the first time I looked to the night sky. Again, because one image speaks for one thousand words, I described this step by using the images and the video above (and their comments). It's a nice mount (cheap, portable and very … Yo can also use the stellarium log file and try to see if it is receiving something or not.. Hi Nelson,Thanks for such a quick response! Recently, I bought a 8" Newtonian telescope that came with a Dobsonian mount. It's not mandatory to be transparent, but it should be removable. To learn more about coordinate systems, positional astronomy or LST, you can go here, here and here... Hope you are already familiar with arduino, but if you aren't, please, don't worry - there is a lot of information you can get on-line. It will be the serial port that your computer associates with Arduino. Recently, I bought a 8" Newtonian telescope that came with a Dobsonian mount. That means I will have 9000 pulses by turn. That is a pulse! 1 – PWM with encoder It's a nice mount (cheap, portable and very … [0.10.3+] Compass Marks - add marks for compass bearings along the horizon. Here you have the declaration of the two functions for this: https://github.com/juanrmn/Arduino-Telescope-Control/blob/master/testing/device/arduino/example/CoordsLib.h#L157-L177. You will need to build 4 like those. If someone have the arduino code .... Hello,Great project! Recently, I bought a 8" Newtonian telescope that came with a Dobsonian mount. That operation is a little bit complex because involves spherical trigonometry and some time concepts (Local Sideral Time - LST). Drafted as stand alone system, rDUINOScope does not need PC, Tablet or Cell Phone, nor Internet connection in order to operate and deliver stunning views! Anyway, it shows the basic mechanism on movement . After you build the box, just place the Arduino and secure it with some hot glue or even some small screws. I'm using the version 1.6.8, but others should work as well (just in case, try not to use some older versions). Make sure you have everything in place (both electrical and mechanical) and run your telescope by opening the telescope's plugin. The reticle is an object like every other in Stellarium - it can be selected with the mouse, it can be tracked and it appears as an object in the Search window. Correct them by switching the corresponding wires at Arduino or, simply, by changing the the code and load it again (see image). The next time you open Stellarium, you should have a new tool at the bottom's bar (see pictures above). in fact i bought a due and it works on the desk. Start drawing a circle into a piece of 3mm plywood. And, why Arduino? Feel free to use the materials you want (or you already have) and the sizes that better match your telescope and mount. So, to prevent using a coordinate system that changes every single second, the astronomers have found a very ingenious way to determine the sky coordinates - the equatorial coordinate system. 4 months ago, it works... thank a lotI want to simplify the initial lauch using a gps neo6m v2 and rtc. Date 2016-08-11 Category Project Tags Arduino Due / Perfboard “ I am fascinated by astronomy since the first time I looked to the night sky. To provide extra stability, I cut and glued a smaller (about 20mm in radius smaller) circle (check pictures above) made out of 5mm plywood. Your email address will not be published. One thing that is important to do: Set up your location, otherwise, all the coordinates will be wrong.. I had a bit of issue getting it to work initially, but I just had to re-configure the telescope settings and re-boot stellarium. Also you’ll find at least another problem with the operating system, the path to USB device (COM ports in windows). import ui.icons_set_rc Click "configure telescope". Note that Stellarium supports ASCOM telescopes natively since version 0.19.3. Recently, I bought a 8" Newtonian telescope that came with a Dobsonian mount. Ask? In a very simple way, one encoder (angle encoder or position encoder) is a device (sensor) that can read, and therefore, transmit a position or an angle. Here's a very little explanation: The technique: To avoid loosing pulses (because the code takes some time to run...), I used some special pins and functions on Arduino: Interrupts. I think it's an old and outdated protocol, but is simple to use and, for this end, works just fine. This instructable will guide you, step by step, how to complete your own controller using Stellarium (astronomy software) and Arduino (open-source prototyping platform based on easy-to-use hardware and software). James Hi Nelson,Great project. It’s may be caused by my version of Python… Have you an idea ? A multi platform, Arduino powered, open source, and open hardware telescope controller and PC interface. It consists on a first approach to control a telescope mechanism by the USB port, builded from scratch and based on Arduino microcontroller, from a computer with GNU/Linux and the Stellarium software. I am trying to link my arduino with stellarium and make a goto telescope. So, using the "config.h" file, set how many pulses you have by turn and then multiply by 4. Here you can read some extra information about using interrupts on Arduino. You can do this easily by pointing the telescope to the pole star (0º north aprox.) Despite of involving maths, trigonometry, programming and some signal processing, don't worry, I will try not to be too extensive! Here you are a small video of the prototype I made executing a movement sequence. This means, a complete telescope's turn will give 15 complete encoder's turns , so you will multiply the encoder resolution by 15! The trimmer's center pin is then connected to the Arduino's input pins. The ST-4 Port is present on some computerized mounts and it is easy to add one to motorized mounts like the EQ3 / EQ4 / EQ5. (Since you cannot communicate with a dumb controller like the "enhanced dual axis" you cannot write an Ascom driver for it.) After this you can use a software like the open source stellarium to play with your telescope or PHD for astrophotography. It's desirable if you build a box to place the all the components, including the Arduino. Because Stellarium, through the LX200 protocol, only can read equatorial coordinates, I had to find a way to convert the readings from the telescope (altazimuth) to the equatorial coordinate system. When the target object is within the field of view, all four LEDs will illuminate. Connect the USB cable to your computer and open the code (see attachments). Try to make the circle as perfect as you can! Now you are only a few steps from your reward! Hello, I’m a teatcher in a french scool and try to make a motorised dobson telescope with student. Telescope + Raspberry Pi + Stellarium = iTelescope . Recently, I bought a 8" Newtonian telescope that came with a Dobsonian mount. Stellarium telescope control plugin integration with arduino and xamarin forms (WiP). Arduino must have configured how many pulses your encoders give by turn. If someone have the arduino code .... Hello,Great project! A wide range of astronomy applications are needed for successful imaging. I also added two steppers to move.How i wondering if somebody has used a real time module on the due to avoid LST change to program.If there is somebody with info i shoud be happy when he would share it.thanks and RegardsLeen de Ridder Holland, 6 months ago I just received today puleys. It's a nice mount (cheap, portable and very … But my voltmeter doesn't seem to be sensitive enough to pick up the 0. 11. I am doing a project to meet the following needs: Control Your Telescope Using Stellarium & Arduino: I am fascinated by astronomy since the first time I looked to the night sky. Everything about this conversion is done, once in a computing cycle, using the function "AZ_to EQ()". So, using the "config.h" file, set how many pulses you have by turn and then multiply by 4. Stellarium etc does not control the motors directly. on Step 12. helloI studied this project although I am unable to understand the variables you used in your code like "TSL" please help. [0.10.3+] Oculars - simulate the view through various telescope eyepeices. After everything is set up, click to upload the code (Sketch > Upload). Stellarium is a really nice software for astronomy. on Introduction. Recently, I bought a 8" Newtonian telescope that came with a Dobsonian mount. 3 – Altzmuth Can I choose always the same and put in the void setup for exemple? Confirm the baud rate (should be 9600bps.. only..).If the problem persists, you can try to debug, first using the arduino (send some Serial.print with position, ...). While connected to Arduino, periodically Stellarium sends 2 strings: ":GR#" - ready to receive RA and ":GD#" - to receive DEC. Can you please tell me which Sensor have you used? I've rebuilt the breadboard 3 times, replaced the encoders and nothing shows up in the stellarium log file. They rotate 360º in about 24H (15º per hour). Once a telescope is successfully started/connected, Stellarium displays a telescope reticle labelled with the telescope's name on its current position in the sky. In my case, I have a 600 pulses encoder and a mechanical gear ratio of 15 times. Jun 2, 2019 - Control Your Telescope Using Stellarium & Arduino: I am fascinated by astronomy since the first time I looked to the night sky. 4 – Equatorial after To reinforce the box, I glued some pieces of wood at the corners. Pierre-Marie says: 13/01/2014 at 10:20 pm. The library uses the reference coordinates to obtain the transformation matrix for the Ra-Dec to Alt-Az, and also the inverse of that matrix for the transformation in the other sense (Alt-Az to Ra-Dec). I would want to know how i find the conversion of coordenites in the your GitHub because i am with difficulties to moviment the telescope following the coordenites. Tip To do that, just open the code using Arduino IDE and edit (using the tab "config.h") your current location and the right ascension (AR), as well the hour angle (H) of the pole star (at the moment you connect to Stellarium). so we broke it down into 2 tests:1) check the channel voltage to see if it flips between 0 and 3.3V.2) Make sure the arduino is "talking" to Stellarium.OK, test #2 is successful.
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