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Serial to USB connection

 

I used The Sky 6 to do go-tos by connecting the Gemini I to my computer via a serial to USB connection.? How do I accomplish this with the Gemini 2? I still have the USB cable,? but need to know what cable to use from the serial connector to the Gemini 2 unit.?
Ron Abbott?
 

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If you wish to continue using serial, you need a cable from the serial port on the computer to a 6P6C modular connector.

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For the G1 you used a 4P4C connector wired thus:

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???? Computer?? 4P4C

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GND??????? -> Pin 2,

Tx ? ???? -> pin 3,? (Rx on G1)

Rx ? ???? -> pin 4?? (Tx on G1)

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For the G2 you need:

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??? Computer??? 6P6C

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???? GND? ???? -> Pin 3

???? Tx ? ???? -> Pin 2?? (Rx on G2)

???? Rx?? ???? -> Pin 5?? (Tx on G2)

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PS It¡¯s possible Losmandy sell a suitable cable (probably DB9 to 6P6C), but you¡¯d need to contact Tanya by ¡®phone or email.

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HtH

David

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From: [email protected] <[email protected]> On Behalf Of stargazr39@...
Sent: 28 October 2024 23:10
To: [email protected]
Subject: [Gemini-II_io] Serial to USB connection

?

I used The Sky 6 to do go-tos by connecting the Gemini I to my computer via a serial to USB connection.? How do I accomplish this with the Gemini 2? I still have the USB cable,? but need to know what cable to use from the serial connector to the Gemini 2 unit.?

Ron Abbott?
 

On Mon, Oct 28, 2024 at 07:10 PM, <stargazr39@...> wrote:
I used The Sky 6 to do go-tos by connecting the Gemini I to my computer via a serial to USB connection.? How do I accomplish this with the Gemini 2? I still have the USB cable,? but need to know what cable to use from the serial connector to the Gemini 2 unit.?
Ron Abbott?
An alternative is to use a straight USB cable from PC to Gemini connected to the USB B (device) input on Gemini. With modern versions of Windows (10 or 11), this will automatically install a driver and create a serial port you can use on the PC. With older versions, you may need to install the driver manually, which might be a hassle, but also doable.
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Regards,
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? -Paul
 

Paul,?
Do I understand correctly that a cable from a USB port on my computer connecting to the USB B input on the G2 will accomplish my goal automatically? I am using an HP computer with a Core10 gen 7 chip and running Windows 10.
Ron Abbott?
 

On Tue, Oct 29, 2024 at 11:08 AM, <stargazr39@...> wrote:
Paul,?
Do I understand correctly that a cable from a USB port on my computer connecting to the USB B input on the G2 will accomplish my goal automatically? I am using an HP computer with a Core10 gen 7 chip and running Windows 10.
Ron Abbott?
Yep. That should work.
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I use a long USB3 cable to go from my computer out to my? telescope. ? ?The USB cable has a 5V powered signal repeater at the telescope end to provide signal conditioning.? I have a usb hub at the mount to carry imaging camera, guiding camera, and Gemini mount info back to my computer, where I use NINA.? ? No need for ethernet to the Gemini.
 

Paul Kanevesky and David Hill,?
Thanks for the feedback on the USB connection situation.? I used a USB 3 cable to connect my laptop to the Gemini.? Fired it up and it worked perfectly.? I can now use The Sky to drive my mount around the sky! Thanks for your help.?
Ron Abbott?

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