Gemini-2 and Gemini-1 Telescope Mount Controllers
Website and Tutorials by Thomas Hilton
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Recommended Serial Port converters

Hi.  I would like to recommend USB to Serial converters that use the FTDI chipset.  There are always the latest drivers available for all favors of Windows, and Mac, plus many more.
The drivers are available from  You will want the VCP drivers from this page.
I recommend using the setup.exe version of the driver for windows. You install it first before plugging in the converter.
Where to get the Cables:
Digikey has two models:
The second models is: also has them:  THere are two different models:
The newest is the Chipi-X10.  Here are the links to it:
The second model is the US232R in 10 and 100 cm cable
Here are pictures of both models:

the Chipi Versions

the US232R versions also carries the US232R versions.  Just search for US232R on there site.
Page last updated on Sept 8, 2015
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