AstroLink 4 mini II

AstroLink 4 mini II

AstroLink 4 mini II & micro

๐Ÿ”ญ AstroLink 4 mini II

A compact and multifunctional astrophotography controller designed for advanced setup automation and precision hardware control.


๐ŸŒŒ Key Features:

  • ๐Ÿง โ€ฏMultifunctional controller designed for astrophotography setups
  • ๐Ÿ’ปโ€ฏRequires external computer (laptop, mini PC, or Raspberry Pi)
  • โš™๏ธโ€ฏControls two focusing stepper motors simultaneously โ€” perfect for dual-scope rigs
  • โšกโ€ฏ12V DC power switches for mounts, cameras, filter wheels, and more
  • ๐Ÿ”ฅโ€ฏRegulated PWM outputs for dew heater control
  • ๐Ÿ”‹โ€ฏAdjustable 3โ€“10V DC regulated output for auxiliary equipment
  • โšกโ€ฏ(NEW in 2025) USB Quick Charge output (up to 18W) for powering mobile devices or accessories
  • ๐ŸŽจ Available in three colors: black, graphite and cherry red

๐ŸŒก๏ธ Sensor Support & Monitoring:

๐Ÿ“Šโ€ฏSupports sensors for:

  • Temperature
  • Humidity
  • Sky temperature / cloud coverage
  • Sky brightness

๐Ÿ”โ€ฏAutomated workflow and dew heater control based on environmental conditions
๐Ÿ“ˆโ€ฏLive monitoring of:

  • Input voltage
  • Current draw
  • Energy consumption

๐Ÿšจโ€ฏAlert system for low voltage, overcurrent, and battery drain scenarios
๐Ÿ›ก๏ธโ€ฏOvervoltage and overcurrent protection to safeguard sensitive equipment


๐ŸŽฏ Advanced Functions:

  • ๐Ÿ“โ€ฏFocuser temperature compensation with built-in calculator
  • ๐Ÿ“Šโ€ฏFocus and environment charts with export options
  • ๐Ÿ’พโ€ฏPermanent memory for focuser position โ€” no parking required after each session

๐Ÿงฉ Software Compatibility:

โœ… INDI Driver (Linux-based setups)
โœ… ASCOM Drivers (Windows-based setups):

  • ASCOM Focuser
  • ASCOM Focuser 2 (for dual motor setups)
  • ASCOM Observing Conditions
  • ASCOM Switch

If you are looking for a simple focusing solution, please check the FocuserOne device.

If you are looking for an astrophotography controller integrated with a computer, please check the AstroLink 4 Bee or AstroLink 4 Pi.


๐Ÿ“ฅ Latest software and downloads (ASCOM 7 platform only)

DevicePanel applicationASCOM driverFirmwareDocs / other
ASCOM 7 and new software stack is recommended
New software requires ASCOM 7 platform installed.
Additionally, AstroLink ASCOM driver, panel and firmware in version 5.x.x are required.
AstroLink 4 Go5.0.15


Unified control panel manual [PDF]
YT presentation
5.0.9PDF
AstroLink 4 Bee(5.0.1) 1.0.6PDF / YT
AstroLink 4 MAX(5.0.2) 1.0.6PDF
AstroLink 4 micro(5.0.1) 1.0.6PDF
AstroLink 4 mini II(5.0.3) 1.0.6PDF
Software/firmware changelog

๐Ÿ“ฅ Latest software and downloads (ASCOM 6 or 7)

DevicePanel applicationASCOM driverINDI driverFirmwareDocs / other
Previous software stack work with ASCOM 6 and 7 platform.
However, no new features will be implemented in this stack.
AstroLink 4 Bee4.6.133.2.10N/A(4.8.5) 1.0.5PDF / YT
AstroLink 4 micro4.6.13INDI(4.8.5) 1.0.5PDF
AstroLink 4 mini II4.9.2INDI(4.5.8) 1.0.5PDF
AstroLink 4 PiN/AN/AINDIN/APDF / YT
Software/firmware changelog
Other software
FTDI driversFTDI Virtual COM Port Drivers
CP210x driversSilicon Labs Virtual COM Port drivers
USBTreeView toolhttps://www.uwe-sieber.de/usbtreeview_e.html

๐Ÿž๏ธ AstroLink gallery