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Fitting USB gps dongle inside rpi case...

11 months 1 week ago
AstroNerd
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Fitting USB gps dongle inside rpi case... #33098
Hi all,
I have one of the USB gps dongles pictured below, and want to fit inside my rpi case, for the simple reason as when plugged into the rpi it takes up two ports as the one next to it is unusable because of the width of this dongle.
So my question is which of the pins is which, ie, power, ground, RX and TX... anybody have any ideas...

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Meade series 5000 80mm triplet Apo & Meade 8” SCT (de-forked)
Starlight Xpress SXVR H18, SXVR M25c, Lodestar Guide Camera
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11 months 1 week ago
HelgeMK
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Fitting USB gps dongle inside rpi case... #33100
Hi AstroNerd,

Maybe you can leverage on the astroberry-diy drivers (here GPS), at least the description (readme) might help:

github.com/rkaczorek/astroberry-diy

Best, Helge

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11 months 1 week ago
AstroNerd
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Fitting USB gps dongle inside rpi case... #33101

HelgeMK wrote: Hi AstroNerd,

Maybe you can leverage on the astroberry-diy drivers (here GPS), at least the description (readme) might help:

github.com/rkaczorek/astroberry-diy

Best, Helge

Thanks,
But does not really help.. :)

Stellarmate OS BETA on Raspberry pi4b
Skywatcher EQ8 pro
Meade series 5000 80mm triplet Apo & Meade 8” SCT (de-forked)
Starlight Xpress SXVR H18, SXVR M25c, Lodestar Guide Camera
Pegasus Ultimate Hub for all USB & Power
Pegasus focus motors on both scopes

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11 months 1 week ago
fmalterre
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Fitting USB gps dongle inside rpi case... #33104
Hi Astronerd,
Take a look at this page for example : www.hobbytronics.co.uk/usb-connector-pinout
Vcc and gnd are easy to guess, maybe lookong at the other side of the pcb can help on Tx and Rx.
Regards
Franck
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11 months 1 week ago
AstroNerd
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Fitting USB gps dongle inside rpi case... #33105
Nothing on other side of board...

Stellarmate OS BETA on Raspberry pi4b
Skywatcher EQ8 pro
Meade series 5000 80mm triplet Apo & Meade 8” SCT (de-forked)
Starlight Xpress SXVR H18, SXVR M25c, Lodestar Guide Camera
Pegasus Ultimate Hub for all USB & Power
Pegasus focus motors on both scopes

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11 months 1 week ago
fmalterre
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Fitting USB gps dongle inside rpi case... #33106
Is there any chip on this side ?

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11 months 1 week ago
AstroNerd
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Fitting USB gps dongle inside rpi case... #33109

fmalterre wrote: Is there any chip on this side ?

Yes there is a chip and other bits, but nothing that tells me what I need to know about removing the USB plug and wiring directly to the pins on the rpi3... :)

Stellarmate OS BETA on Raspberry pi4b
Skywatcher EQ8 pro
Meade series 5000 80mm triplet Apo & Meade 8” SCT (de-forked)
Starlight Xpress SXVR H18, SXVR M25c, Lodestar Guide Camera
Pegasus Ultimate Hub for all USB & Power
Pegasus focus motors on both scopes

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11 months 1 week ago
AstroNerd
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Fitting USB gps dongle inside rpi case... #33110
This shows other side..

Stellarmate OS BETA on Raspberry pi4b
Skywatcher EQ8 pro
Meade series 5000 80mm triplet Apo & Meade 8” SCT (de-forked)
Starlight Xpress SXVR H18, SXVR M25c, Lodestar Guide Camera
Pegasus Ultimate Hub for all USB & Power
Pegasus focus motors on both scopes
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11 months 1 week ago
Gonzothegreat
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Fitting USB gps dongle inside rpi case... #33113
Why not get a very short USB cable?

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11 months 1 week ago
Gonzothegreat
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Fitting USB gps dongle inside rpi case... #33114
or, you could find another GPS module and do something like blog.whatgeek.com.pt/2015/03/connect-a-gps-to-the-raspberry-pi/

Kstars Mac osx
Odroid C1 running indiserver (kept up-to-date with apt-get update/upgrade)
HEQ5 pro / QHY5 / Atik 314L+

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11 months 1 week ago
AstroNerd
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Fitting USB gps dongle inside rpi case... #33115

Gonzothegreat wrote: or, you could find another GPS module and do something like blog.whatgeek.com.pt/2015/03/connect-a-gps-to-the-raspberry-pi/


Now, yes that was my other option using one of these

www.hobbytronics.co.uk/gps-gp-20u7

It was just that I already had the USB dongle and a soldering iron... :)

Stellarmate OS BETA on Raspberry pi4b
Skywatcher EQ8 pro
Meade series 5000 80mm triplet Apo & Meade 8” SCT (de-forked)
Starlight Xpress SXVR H18, SXVR M25c, Lodestar Guide Camera
Pegasus Ultimate Hub for all USB & Power
Pegasus focus motors on both scopes

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11 months 1 week ago
fmalterre
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Fitting USB gps dongle inside rpi case... #33118
According to the G7020-KT datasheet ( innovictor.com/pdf/UBX-G7020-Kx_DataShee...01)_Confidential.pdf section 6.1.1) , pin 8 is for usb_DM (D-) and pin 10 is for usb DP (D+).
According to the usb connector design central pin 2 is for D- and pin 3 is for D+, pin 1 is for vcc and pin 4 is for gnd
So if I not wrong this shoudl be something like this :


Please double check vcc and ground before plugin !!
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