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Author Topic: Alternative way to use the Raspberry Pi - as a USB server  (Read 618 times)

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Offline mcgillca

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Alternative way to use the Raspberry Pi - as a USB server
« on: 10:30:15, 01 November, 2017 »
Not quite sure where to put this...

I came across some software last week called VirtualHere - see https://www.virtualhere.com/home. This allows you to connect to USB devices on a remote computer as though they were connected to locally.

I tried this out on a Pi last week, and connected an HEQ5 mount, a Cannon DSLR and a ZWO ASI 120mm-s to TSX running on my home computer.  I only used the free version which allows 1 device at a time, but all worked perfectly.

So why would you use the Pi like this, rather than running TSX on the Pi directly? Two reasons - firstly, this works even if there is no driver for the Pi e.g. the Cannon DSLR. VirtualHere seems to work by transmitting the info to the remote USB port, so the driver is required on the client computer rather than the remote computer.

Secondly, automation software is currently much better on PCs than on the Pi.

I'm now tempted to get a Rock64 board and try with that - the Rock64 board has gigabit ethernet AND USB 3 so should allow much faster downloads (and reduced amp glow) with ASI cameras.

Not sure if anyone else has experimented with this?

Colin
Main scope: Ikharos 8" RC
Camera: Atik 460ex with Atik EFW and Baader LRGB Ha, OIII and SII filters
Guide scope: On Axis Guider with Atik 314L+
Mount: Paramount MX located in Astrocamp, Nerpio, Spain

Online chris.bailey

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Re: Alternative way to use the Raspberry Pi - as a USB server
« Reply #1 on: 11:36:50, 01 November, 2017 »
Colin

I tried Virtual Here a while ago and found it a bit buggy, it may well have improved so well worth another try especially as they now have a version for my Synology NAS.

As well as the Rock64 there is the Asus TinkerBoard which has similar sorts of grunt.

Chris
LX200|ZS70|FSQ85|FLT110|Altair DF250RC|EQ6 Pro(Rowan Belt Mod)|ParamountMX
ATIK383L+/EFW2/OAG|Lodestar|Baader 36mm LRGBHaSIIOIII
Starlight Express SXVRH16/ONAG/FW|Lodestar X2|Baader 2" Filters
Starlight Express SXVRH814/ONAG/FW|LodestarX2|Baader 2" Filters
Lunt LS60PTBF1200|DMK41|Quark Chromo
Samyang 135mm f1.8

Offline Phalangium

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Re: Alternative way to use the Raspberry Pi - as a USB server
« Reply #2 on: 15:06:31, 01 November, 2017 »
I was looking at using a Pi a while back, mainly because I have so many usb cables trailing from the scope/mount to the laptop, but was put off by the fact that some of the software I use is not supported on linux.  But from what you have said in your post this would not now be a problem? I would still run the software on my windows laptop and the pi would just act as a hub?
Thanks.

Offline Nomis Elfactem

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Re: Alternative way to use the Raspberry Pi - as a USB server
« Reply #3 on: 10:17:30, 03 November, 2017 »
I have a feeling this is going to be a stupid question but what's the advantage of running a Pi rather than just using a powered 7 port USB 3 hub (when running wired of course... I can see the need when using Bluetooth etc) ?

S.
Simon

Scopes: Astro-Tech AT-111EDT Triplet, TS65ED Quad, Orion ST80, Modded PST-90 Solar Scope, PST Cak (on loan)
Cameras: SXVF H694, Atik 16ic, Canon EOS 600d, DMK41, DMK21, QHY 5L-II (mono & colour)
Accessories: SX USB Filter Wheel, SX OAG, Baader LRGB Ha SI OII Filters, SharpSky Focuser
Mount: EQ6 (EQMOD), SW Star Adventurer, plus a lot (and I mean a lot) of other bits and pieces

Online chris.bailey

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Re: Alternative way to use the Raspberry Pi - as a USB server
« Reply #4 on: 11:45:25, 03 November, 2017 »
Si

One advantage is you do away with USB extenders and use wireless (limited bandwidth) or Ethernet cable which has less distance restrictions.

Chris
LX200|ZS70|FSQ85|FLT110|Altair DF250RC|EQ6 Pro(Rowan Belt Mod)|ParamountMX
ATIK383L+/EFW2/OAG|Lodestar|Baader 36mm LRGBHaSIIOIII
Starlight Express SXVRH16/ONAG/FW|Lodestar X2|Baader 2" Filters
Starlight Express SXVRH814/ONAG/FW|LodestarX2|Baader 2" Filters
Lunt LS60PTBF1200|DMK41|Quark Chromo
Samyang 135mm f1.8

Offline Nomis Elfactem

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Re: Alternative way to use the Raspberry Pi - as a USB server
« Reply #5 on: 13:43:01, 03 November, 2017 »
Just added this to my investigation list.... I've been looking into the Ethernet option (and active optical fibre) as I'm struggling to get my '174 to reach my obsy desktop running v3 USB... picks it up OK on USB 2.  (am wondering is it's because I've got my USB2 EQMod also plugged into the hub ?!?)...

I see another project starting....
Simon

Scopes: Astro-Tech AT-111EDT Triplet, TS65ED Quad, Orion ST80, Modded PST-90 Solar Scope, PST Cak (on loan)
Cameras: SXVF H694, Atik 16ic, Canon EOS 600d, DMK41, DMK21, QHY 5L-II (mono & colour)
Accessories: SX USB Filter Wheel, SX OAG, Baader LRGB Ha SI OII Filters, SharpSky Focuser
Mount: EQ6 (EQMOD), SW Star Adventurer, plus a lot (and I mean a lot) of other bits and pieces

Offline Einari

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Re: Alternative way to use the Raspberry Pi - as a USB server
« Reply #6 on: 14:46:44, 03 November, 2017 »
We just have large renovation finished (water pipes etc change) and as an extra job I ordered Ethernet connection to balcony.
Luckily today I also received usb over Ethernet adapters so now I could operate mount, camera etc without cabling going so that balcony door is open.
Big improvement specially in cold winter nights.
Tapio

Celestron C8, C9.25" & Hyperstar, iOptron CEM60-EC, TS 80 triplet,  Coronado PST, SXV-694,  ASI120MM/ASI174MC Cool

Online chris.bailey

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Re: Alternative way to use the Raspberry Pi - as a USB server
« Reply #7 on: 15:17:52, 03 November, 2017 »
I see another project starting....

The Rock64 and Linux is the way to go if you need USB3 though I find that even Gigabit Ethernet won't run at full speed (probably the fault of the terminal hardware) so may be the bottleneck for USB3 camera data.
LX200|ZS70|FSQ85|FLT110|Altair DF250RC|EQ6 Pro(Rowan Belt Mod)|ParamountMX
ATIK383L+/EFW2/OAG|Lodestar|Baader 36mm LRGBHaSIIOIII
Starlight Express SXVRH16/ONAG/FW|Lodestar X2|Baader 2" Filters
Starlight Express SXVRH814/ONAG/FW|LodestarX2|Baader 2" Filters
Lunt LS60PTBF1200|DMK41|Quark Chromo
Samyang 135mm f1.8

 

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