Gemini-2 and Gemini-1 Telescope Mount Controllers
Website and Tutorials by Thomas Hilton
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Connecting Gemini 2 to Computers and other devices

  1. The Gemini-2 can completely stand alone.  Here is a tutorial of the hand controller.
  2. It can be connected using it's Serial Port to a PC that has a Serial port or USB to serial adapter. for the cable wiring see Serial Port Wiring.  This is the Serial Port 1 on the Orginal Gemini-2 and the Serial/GPS on the Gemini-2 Mini.
    1. Please note that you cannot access the web interface using the Serial Port.
    2. The serial port only accepts the Gemini commands listed here.
    3. The serial port can be used with the ASCOM driver.  See 4c below.
  3. USB connector.  This requires a USB driver for windows.  There is no driver for MAC. Linux computers have a driver built in.
    1. The USB-A connector can only supply +5V, and is not supported otherwise.
    2. Please note that you cannot access the web interface using the USB Port.
    3. The USB port only accepts the Gemini commands listed here.
    4. The USB port can be used with the ASCOM driver.  See 4c below.
  4. Ethernet connector.  The ethernet connector support a Web interface that can be used to contol just about every function of the Gemini-2.  Any device that can access your local network should be able to connect to the Ethernet port.  This included Windows Computers, MAC computers, Linux computers, Iphones and Ipads, Android phones and Android tablets.  Note this connection is only hardware, not Wifi.  
    1. Instructions to connect the Ethernet interface to your Windows computer is here.
    2. To access the Web Interface see Web Interface instructions.
    3. To use any program that supports the ASCOM Standard, you will need to load the ASCOM Standard and the ASCOM Gemini Driver.  See instructions here.
    4. To configure the ASCOM driver to use the Ethernet port see Configuring the Ethernet connection in the ASCOM Driver.   Note: The Ethernet connection must be working.  If you cannot connect to the Web Interface, you will not be able to connect to the ASCOM driver using the Ethernet port.
    5. There are no instructions on connecting the Ethernet interface to a MAC or Unit computer. You can access it by going to the IP address shown under Menu-->Mount-->Network in the hand controller.
    6. It is possible to use an Travel Router or Bridge to add WiFi to the Gemini-2 Ethernet port. See info.


Page last updated on Apr 27, 2016
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