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Skywatcher Newton PDS Motor-Focuser

energiebrand avatarenergiebrand

December 11, 2021

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Description

UPDATE 20th of Feb 2024

have added a xxx.ino.pdf file. Please remove the .pdf part and you have my latest sketch.

However I strongly recommend to have a look on the original webpage where I found the code. The latest sketch there is intended to be used with PlatformIO and not IDE: https://github.com/fehlfarbe/arduino-motorfocus

Update 22nd of Feb 2022:

  • Updated with the Arduino FW Sketch. There was a minor bug. Unfortunatly Thingiverse will not allow a PDF file for upload anymore. So therefore I uploaded a DOC-File.
  • if you will use the Sketch with the Moonlite ASCOM driver you need a 100nF capacitor between RST and GND on the Arduino NANO; you will not need the C if you will use the Arduino with INDI Moonlite driver
  • If you have connected the C you maybe will have a problem to upload the sketch via IDE. Therefore I woul recommend to solder the C after you have uploaded the sketch. Maybe install a jumper
  • comment (//) line 299, if you will use a speed-switch on D9

NEU 22.02.2022:

  • Im PDF File, welches den Sketch enthält, ist ein kleiner Bug. Da Thingiverse keinen Upload von PDF Files mehr erlaubt, habe ich den neuen Sketch als DOC-File hochgeladen
  • sofern ein Betrieb unter ASCOM-Driver geplant ist, ist ein 100nF Kondensator zwischen RST und GND am Arduino NANO notwendig; für reinen INDI Betrieb kann der entfallen
    der Kondensator verhindert vermutlich aber auch den Sketch Upload. Daher muß der Kondensator erst nach dem Upload angelötet werden; eventuell einen Jumper dazwischenschalten
  • die Zeile 299 kommentieren (//), falls ein Speedschalter an D9 zum Einsatz kommen soll

Video Part-1: https://www.youtube.com/watch?v=1Kp29zBCZRQ
Video Part 2: https://www.youtube.com/watch?v=7_p9IGg17Xs

English:
Motor-focuser for Skywatcher PDS Newton telescope with 1:10 drive

  • 3parts: focuser, electronic- box, driver (available in FUSION360 format, .obj-Format and STL)
  • Arduino-NANO
  • Chinese stepper-motor with 1:64 gear
  • ULN2003 driver
  • ASCOM / INDI compatible (set maximum to 65000 steps, this will give the complete way of this drawtube from 0 to max)
  • retrectable solution with single screw mounted to Crayford drawtube.
  • push-button focosing in 2 speeds optional
  • optional temperature sensor

1:10 Crayford drawtube can be used fully manually or with electrical push-buttons with 2 speeds selectable via switch or use ASCOM or INDI driver in N.I.N.A., APT, or any other SW using ASCOM or INDI.
MoonLite protocol used. Use original MoonLite WIN10 32/64 bit driver for ASCOM use.
Original "standalone" MoonLite SW is not working!

Copy the sketch from the PDF document to your Arduino IDE. Select Arduino NANO and COM Port. Flash the Arduino-NANO.
You can also use the original code from the developer, but than do not use a speed switch on PIN D9 !!!

Original version:
https://github.com/fehlfarbe/arduino-motorfocus
https://www.thingiverse.com/thing:2063325

German / Deutsch:

Motorfokusser für Skywatcher PDS Newton Teleskop mit 1:10 Feintrieb

  • Arduino-NANO
  • China Schrittmotor mit 1:64 Getriebe
  • ULN2003 driver
  • ASCOM / INDI kompatibel (max. Steps auf 65000 setzen, damit erhält man den kompletten Weg von 0 bis zum maximalen Auszug).
  • wegschiebbare Halterung mit Einschraubenbefestigung am Crayford-Auszug
  • optionaler Antrieb über 2 Taster und wählbar in 2 Geschwindigkeiten
  • Temperatursensor

Der 1:10 OAZ kann völlig manuell oder mithilfe des Motors in 2 Geschwindigkeitsstufen eingestellt werden. Die Nutzung unter ASCOM und INDI ist möglich. Getestet mit N.I.N.A. und APT sowie Astroberry und StellarMate.
Es wird das MoonLite Protokoll genutzt. Für ASCOM muß der Original-Treiber von der MoonLite WebPage für WIN10 runtergeladen und konfiguriert werden.
Die MoonLite Standalone SW funktioniert nicht!

Den Sketch aus dem PDF Dokument kopieren nach Arduino DIE und diesen flashen.
Mann kann auch den Original-Code flashen. Dann funktioniert aber der Geschwindigkeitsumschalter nicht!

Originalversion:
https://github.com/fehlfarbe/arduino-motorfocus
https://www.thingiverse.com/thing:2063325

License:

Creative Commons - Attribution

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