OnWorks favicon

Arduino ASCOM Focuser Pro DIY download for Linux

Free download Arduino ASCOM Focuser Pro DIY Linux app to run online in Ubuntu online, Fedora online or Debian online

This is the Linux app named Arduino ASCOM Focuser Pro DIY whose latest release can be downloaded as myFocuserPro-176-1.pdf. It can be run online in the free hosting provider OnWorks for workstations.

Download and run online this app named Arduino ASCOM Focuser Pro DIY with OnWorks for free.

Follow these instructions in order to run this app:

- 1. Downloaded this application in your PC.

- 2. Enter in our file manager https://www.onworks.net/myfiles.php?username=XXXXX with the username that you want.

- 3. Upload this application in such filemanager.

- 4. Start the OnWorks Linux online or Windows online emulator or MACOS online emulator from this website.

- 5. From the OnWorks Linux OS you have just started, goto our file manager https://www.onworks.net/myfiles.php?username=XXXXX with the username that you want.

- 6. Download the application, install it and run it.



Arduino ASCOM Focuser Pro DIY


myFocuserPro is an ASCOM and Moonlite compatible stepper motor telescope focus controller (DIY) based on Arduino Nano/Uno. A popular DIY ASCOM focuser with more than 115,000+ downloads.

(c) Copyright Robert Brown 2014-2023. All Rights reserved.
Permission is granted for personal and Academic use only.

Spreadsheet to calculate what stepper motor to use.


  • ASCOM driver tested with FocusMax, Nebulosity 4.1.1, APT v3.13 and ScopeFocus
  • Supported Driver Boards - A4998, ULN2003, L293D, L298N, DRV8825, EasyDriver, ST6128, RAPS128, TMC2225/2209
  • Software - Windows Application, ASCOM driver, INDI moonlite driver
  • Create using stripboard layout or using PCB design
  • Tested with INDI moonlite driver under Ubuntu and Ekos
  • Tested on MacBook with TheSky and Moonlite driver
  • Manual or full automated remote control (eg focusmax)
  • Manual control by Push Buttons, Infra-red controller, rotary encoder
  • Manual zero position (hold down both push buttons for 2 seconds) or via application/ASCOM driver
  • Arduino code, ASCOM driver and Windows Application support for all build options
  • Multiple Language support
  • LED indications for IN, OUT (optional) and external PWR
  • LCD1602/I2C display (optional) for positional information (Current and Target positions)
  • Temperature probe support (optional - DS18B20 accurate to 0.5 degree)
  • Reverse voltage protection on 12VDC input
  • Option1: 28BYJ-48 Stepper Motor and ULN2003 driver board using Arduino Nano
  • Option2: NEMA17HS15-0404S-PG5 Stepper Motor and L293D Motor Shield using Arduino Uno
  • Option3: NEMA17 and DRV8825 driver board - up to 6400 steps per revolution!
  • Option4: NEMA17 and EASYDRIVER board - up to 1600 steps per revolution
  • Specify Reverse Direction, Coil Power, Stepping mode in either ASCOM or Windows application
  • Important focuser parameters stored in controller EEPROM and retrieved when driver/application connects
  • Full build instructions, diagrams, test scripts, comprehensive manual, bracket design and more
  • Detailed instructions on initial setup, operation and selection of stepper motors
  • Full parts list with suppliers, costs and build options
  • Bluetooth Wireless adapter HC05 option



User interface

Win32 (MS Windows)

Programming Language

C#, Assembly


Hardware, Astronomy

This is an application that can also be fetched from https://sourceforge.net/projects/arduinofocuscontrollerpro/. It has been hosted in OnWorks in order to be run online in an easiest way from one of our free Operative Systems.

Free Servers & Workstations

Download Windows & Linux apps

  • 1
    Zephyr Project
    Zephyr Project
    The Zephyr Project is a new generation
    real-time operating system (RTOS) that
    supports multiple hardware
    architectures. It is based on a
    small-footprint kernel...
    Download Zephyr Project
  • 2
    SCons is a software construction tool
    that is a superior alternative to the
    classic "Make" build tool that
    we all know and love. SCons is
    implemented a...
    Download SCons
  • 3
    PSeInt is a pseudo-code interpreter for
    spanish-speaking programming students.
    Its main purpose is to be a tool for
    learning and understanding the basic
    Download PSeInt
  • 4
    oStorybook l'outil privil�gi� des
    �crivains. ATTENTION : voir sur
    --en_EN oStorybook the right tool for
    writers. WARNIN...
    Download oStorybook
  • 5
    Asuswrt-Merlin is a third party
    firmware for select Asus wireless
    routers. Based on the Asuswrt firmware
    developed by Asus, it brings tweaks, new
    features and ...
    Download Asuswrt-Merlin
  • 6
    Atom is a text editor that's
    modern, approachable and full-featured.
    It's also easily customizable- you
    can customize it to do anything and be
    able to ...
    Download Atom
  • 7
    Osu! is a simple rhythm game with a well
    thought out learning curve for players
    of all skill levels. One of the great
    aspects of Osu! is that it is
    Download Osu!
  • More »

Linux commands