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INDI Library v1.9.2 Released (14 Sep 2021)

Bimonthly Stable INDI Library release introduces new drivers and fixes for existing ones.

Powered USB Hubs

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Replied by Jerry Black on topic Powered USB Hubs

From recent experience, I can confirm that my Samsung T5 1TB SSD works down to at least -8.5 C.
120 MM Skywatcher Esprit on Celestron CGX, ZWO ASI 224MC guiding, Pegasus FocusCube v2
Nikon Z7 8256 x 5504, 35.9 x 23.9mm 4.34 um. Triad Ultra Quad NB Filter
1) Odroid-N2 Ubuntu-mate 20.04 2) StellarMate on RPI4 8G
The good, the bad, the ugly at sciencedowneast.no-ip.ca/zenphoto/
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8 months 3 days ago #65926

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Replied by Doug S on topic Powered USB Hubs

FWIW, I use Crucial SSDs and they work fine in cold temps (-12 C in the last few days):
Crucial BX500 120GB 3D NAND SATA 2.5-Inch Internal SSD, up to 540MB/s - CT120BX500SSD1Z
RASA11, Celestron CGX-L, ASI183mc Pro, 60mm guider + ASI290mm mini, ASI EAF focuser, PPB, Rpi4-4Gb+SSD, Powered USB3 hub, hardwire Ethernet.
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8 months 3 days ago #65927

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Replied by Ken Kelso on topic Powered USB Hubs

Not sure if it has already been mentioned but an important factor when choosing a hub is that the cable used to connect the Pi USB to the hub to carry the data should ONLY have the 2 data and the Ground wires connected. Otherwise a possibly badly regulated supply goes straight onto the Pi's bus. A list of tested hubs can be found here:

elinux.org/RPi_Powered_USB_Hubs

Alternately you can just cut the red power lead.

Ken
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8 months 3 days ago #65934

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Replied by Giles on topic Powered USB Hubs

I will just mention here that going with an unpowered hub is, for me, a recipe for issues.
I dont have data to back up that up, it is a "Just don't do it" thing with me.
__
I blog my progress: www.coochey.net
Last edit: 8 months 3 days ago by Giles. Reason: Auto correct issue
8 months 3 days ago #65936

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Replied by Danny on topic Powered USB Hubs


Nice to hear that I also have a 2.5 "Crucial SSD MX500 250GB

I never had problems with my unpowered Anker 4 Port USB Hub. Only the ASI120MM needs power and that is also supplied by the RPI. But I want to add a WiFi USB stick and a USB SSD that doesn't work with a unpowered USB hub only.
My Mount is connected directly to a USB2 Port on the RPI

At the moment I have 3 cables that go up to the telescope. DSLR power, ZWO focuser and dew straps power (Y Cable) and my USB hub.

I don't need to supply the RPI with power via the USB hub, but if I can, why not?

I can also mount the powered USB hub directly on the telescope with a 3-way distributor for power, but then I would also have to mount the SSD on the telescope, which would mean additional weight. I'm pretty close to the photographic limit of my mount.

Regards

Danny
Pentaflex Newton 150/750
Skywatcher 9x50 with ZWO ASI120MM Mini
iOptron CEM25P
GPU aplanatic coma corrector
Canon EOS 650D(a) ; Canon EOS 6D ; Canon EOS 450D(a)
ZWO EAF motofocus
Raspberry Pi4 4GB with Stellarmate OS
8 months 2 days ago #65941

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Replied by Tunafish on topic Powered USB Hubs

I have the powered Anker 7 port USB 3.0 Hub with built in charging port from that list. I've been using it for 10 months with an RPi 4/4GB and Astroberry with no issues. I don't use the charging port but have my mount, Canon DSLR and QHY camera all plugged into it. Its also 12 volt so works well with everything else. Also had no issues with it in -15C weather.
ES ED102 on AVX mount
ASI071MC Pro, QHY5-III 178C
myFP2ESP focuser
Astroberry on PI4-4GB
8 months 2 days ago #65942

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Replied by Richard Persaud on topic Powered USB Hubs

Hi All,
I’m currently running the iOptron CEM70g and am considering using Stellarmate Plus for a completely wireless connection.
My question is, does any have, tried or heard of anyone making a successful connection?
If not, does anyone have an opinion on whether it will work?

The CEM70g has got a powered Usb3 hub and WiFi built in. However the WiFi will only allow for wireless mount control only and not any devices attached to the hub hence my considering using Stellarmate Plus.

Thank you all in advance
Richard.
7 months 1 week ago #67149

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Replied by Jasem Mutlaq on topic Powered USB Hubs

My friend has a CEM70g and it works just fine.
Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
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7 months 1 week ago #67152

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Replied by Richard Persaud on topic Powered USB Hubs

This is great news, thank you Jasem for the quick response. Hope he is enjoying its features!
So I just need to purchase the SM+? Or do I also need the Ikarus Technologies Mount USB Cable (iOptron)?
Thanks
7 months 1 week ago #67154

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Replied by Jasem Mutlaq on topic Powered USB Hubs

No need for the cable as they are used for older mounts.
Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
How to Submit Logs when you have problems?
Add your observatory info
The following user(s) said Thank You: Richard Persaud
7 months 1 week ago #67155

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