• OnStep Controller2 1
  • OnStep Controller2 2
  • OnStep Controller2 3
  • OnStep Controller2 4

OnStep Controller2

OnStep is a DIY computerized GoTo controller for Telescope mounts. This App controls most functions through Bluetooth from your Android cell phone or tablet. The user can align the mount, park/un-park, program PEC, and find and go to celestial objects. These include our Moon, the Planets, and several catalogs: NGC/IC, Herschel 400, Messier, and finally the named bright stars.
Note: To get up and running: 1. This version is for use with OnStep 0.99x11 or later (my current Stable and Dev branches on GitHub.) Configure with checksum disabled on the Bluetooth serial port (default.) This latest version of OnStep also has LX200 protocol fixes and works with some of the most popular Android planetarium Apps (as well as providing better compatibility with PC software.)2. You must pair the OnStep's Bluetooth adapter to your phone or tablet.3. Open this App, open it's menu (using your Menu button), select the Bluetooth adapter you just paired, and finally press Accept. This needs to be set just once.4. To get going... you might want to set your location (Menu/Site Selection.) Then, use the "Home/Align/Park" menu to set the date and time and start an "Align". Once the align is started, select a bright star that you can easily identify from the list and do a "GoTo". Finally, use the N/S/E/W/etc. direction keys to center the star (or you can move your 'scope to it manually) and press the "Align" button. From there, you're free to select objects from the lists and do GoTo's, or just exit and run a planetarium type App to control the mount.

Category : Education

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Reviews (14)

Cra. H. May 12, 2021     

This app is awesome only thing I would like to see is the focus controller have the option of a slide bar to control the focus tube aswell as just buttons.

Mur. I. Jul 26, 2019     

Having such an app to complement an open-source telescope controller software is of unmatched value. I am a true believer in OnStep.

And. S. Jan 13, 2021     

Great app, puts to shame those old telescope remote controllers.

Pet. B. Sep 19, 2021     

Converted my eq3-2 to a goto mount amazing work Howard, Khalid, David and all involved in this awesome open source project. Thanks guys!

Joh. A. May 5, 2019     

Great app and integration with telescope

Mar. W. Dec 30, 2019     

Use it on my scopes. It's great.

Att. B. Nov 9, 2021     

It's freezing my phone.

Seb. J. Aug 3, 2020     

Greatest project ever!

T. D. Aug 5, 2021     

OnStep has opened a new world to me! Well done!

Ran. K. Jun 3, 2020     

Hats to OnStep

Hem. K. Aug 21, 2020     

Works always!

Car. F. Jan 5, 2017     

It's a incredible work! This app, with the open source OnStep project, works really nice. I converted my eq3-2 with default motors to a goto spending less than 70 U$D (about 200 BRL). My slew rate is just about 50x thanks to the motors only, but i don't care. I can wait a minute or two!

dea. c. Jun 12, 2016     

Runs smoothly in my ASUS zenphone 2. Some improvement on the UI is desired, but not really needed. A control over wifi option in the future would be a great addition. Thanks Howard :)

GOB. P. Feb 8, 2016     

This program is perfect ! Great thanks to share with amateurs astronomers !! Great job !!