AstroLink 4 Pi

AstroLink 4 Pi is the first device in the AstroLink family, that can operate in standalone mode. It is controlled by the internal Raspberry Pi* 4 module, which is responsible for running the astroimaging setup. Provided AstroLink 4 Pi INDI driver controls all the device components. Recommended operating system is astroberry ( with KStars and Ekos software (see Ekos documentation here).

AstroLink 4 Pi is powered with 12V via a reliable XT60 socket. It can either connect to an existing WiFi network or create its own hotspot. Once connected, an imaging session can be planned via a remote desktop available in the regular browser. Any computer, laptop, or tablet can be used to plan and control the imaging session. See the astroberry system page and AstroLink 4 Pi manual for details.

Main features of the AstroLink 4 Pi device:

  • focuser motor control for Robofocus, Moonlite, or generic unipolar or bipolar stepper motor
  • up to 1/32 micro-stepping control with 2.0A maximum current and 1.4A maximum continuous hold current
  • temperature, humidity, and sky temperature/cloud coverage/sky brightness sensor support (version 3 only)
  • permanent focuser position – no need to park focuser after the session
  • 2 adjustable PWM power outputs to control dew heaters, telescope fans, or custom Peltier coolers. The maximum load is 40W per output
  • 2 switchable 12V DC outputs to power mount, cameras, or filter wheels. The maximum load is 5A per output
  • 1 additional 12V DC output
  • 1 additional adjustable 3-10V output
  • integrated real-time clock (version 2 and later)
  • XT60 high current input voltage socket
  • integrated cooling fan enabled automatically when CPU temperature rises
  • connectivity: LAN and WiFi
  • USB ports: 2xUSB3.0, 2xUSB2.0
  • dimensions 137 x 85 x 32 mm
  • weight 235g (with Raspberry Pi* module installed)

Latest software and downloads

AstroLink 4 Pi INDI driver
AstroLink 4 Pi manual (PDF)
AstroLink 4 Pi v.3 manual (PDF)
AstroLink 4 Pi video tutorials (PL and EN)

* Raspberry Pi is a trademark of Raspberry Pi Trading

AstroLink 4 Pi in the imaging setup
AstroLink 4 Pi in the imaging setup
AstroLink 4 Pi sample travel setup
AstroLink 4 Pi sample travel setup
AstroLink 4 Pi
AstroLink 4 Pi
Ekos panel during the session
Ekos panel during the session