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Experiences Using SM Beta on RPi 4, 4GB

2 months 3 weeks ago 2 months 3 weeks ago by werper.
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Experiences Using SM Beta on RPi 4, 4GB #42499
Some observations after a weekend (about 12 hours of imaging) using SM Beta on the the new RPI 4, 4GB in Hotspot mode:
(I'm using the Vilros complete kit with heatsinks and fan: www.amazon.com/Vilros-Raspberry-Complete...4%2Caps%2C283&sr=8-9 )
Stability has been excellent, no crashes.
My Powered USB hub does not appear to be compatible, nothing is recognized when it's plugged in. However, it also does not appear to be needed anymore as my Canon T3i, QHY-5-II-M guide cam and iOptron iEQ45 Pro mount ran flawlessly plugged directly into the RPi. I thnk the compatibility is with the RPi, not SM.
Offline plate solving works flawlessly.
Guiding works flawlessly.
Focusing works flawlessly.
The only real problem I've found so far is wireless 802.11ac does not work, only wireless N, which I believe is a Ubuntu Mate issue, not Stellarmate. Gigabit Ethernet works flawlessly too.
Overall, I'm finding the entire user experience VASTLY improved with the beefier RPi 4. It's working REALLY well for me!
I'd be VERY interested to hear other user's experiences with the RPi 4...

TPO 8" Ritchey-Chretien Astrograph
Moonlite CS focuser with Motor Drive
RoboFocus Auto Focuser
iOptron iEQ45 Pro Mount
Stellarrmate OS (beta) RPi 4, 4GB
Canon T3i DSLR - Primary Cam
Starlight Xpress Lodestar X2 Guide Cam
Astromania 60 Guide Scope
Polemaster Polar Alignment Cam
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2 months 3 weeks ago
avarakin
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Experiences Using SM Beta on RPi 4, 4GB #42505
I built my own Pi4 based system using Ubuntu Server 18.04 with Mate UI and it works great too.
Alex

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2 months 3 weeks ago
AstroNerd
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Experiences Using SM Beta on RPi 4, 4GB #42514
Yes I too use this same system now, and find it superb, not that I got it to work in 4K mode with and without a monitor attached and via VNC..
My only issue is that I can’t get a direct rpi4 Ethernet to PC connection to work, only rpi4 to router...but hotspot in 5ghz is excellent for now.. :)

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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2 months 3 weeks ago
david_taurus83
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Experiences Using SM Beta on RPi 4, 4GB #42515
I'm fairly new to Linux, Kstars and Rasberry. I have been using APT for all my imaging up to now. I bought a RPi3 around the same time as the 4 got released. Had lots of issues with the 3. Took a lot of indoor testing to try and get everything to work and learn Kstars. My last session with the RPi3 ended with download issues from my ASI1600. Around the same time SM was released for the RPi4. So I bought a 4gb version and installed on that. Bought one of those acrylic cases with a fan for the RPi4 to help cooling. It's been brilliant. Downloads are quick, platesolving is rapid. My last 2 sessions have been planned on the scheduler. Everything went as planned until a meridian flip. It cleared my PHD2 calibration and the ASI1600 hung as well. I'll unpick the ootion to clear calibration next time out and see if the image plan continues as normal. Apart from that, I'm very pleased. It's great being able to control everything via VNC viewer on my phone or laptop.

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2 months 3 weeks ago
DrawsACircle
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Experiences Using SM Beta on RPi 4, 4GB #42523
I have found two bugs.:
My ASI120mini is detected but it does not capture any pictures, I've tried both the USB 2 and 3 port. USB firmware has been updated as described here: www.raspberrypi.org/forums/viewtopic.php...0&p=1490467#p1490467
It's not possible to offset time if you use a GPS.

Otherwise it seems to be working ok, very fast which is fantastic.
I've added heatsinks and a fan to keep the temperature at an acceptable level.

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2 months 2 weeks ago 2 months 2 weeks ago by maxthebuilder.
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Experiences Using SM Beta on RPi 4, 4GB #42864
Hello,
Got an RPI 4 with 4Gb. Installed SM 1.4.3 beta.
All is working except:
the "stellarmate" hotspot is extremely flaky.
It's there but only sometimes I am able to connect to it (android phone, android tablet, windows PC).
It just refuses to be connected to. When it connects it tries to go to Ekos Live sign-in page.
The biggest problem for me is that my mount needs to connect to the hotspot to function.

I was only able to make it work like two times out of 50 tries.

Any clue anyone?
Thanks!

Max S.
RPI 3 B+ and RPI 4 B (4Gb) with Stellarmate OS.
Nikon D5300. Nikon D5500 H-a modified. 180 mm f/2.8 antique Nikon. Tamron AF 28-75mm f/2.8.
AT72EDII refractor. ZWO ASI294MC Pro
ZWO ASI120MC-S on ZWO 30F4 MiniScope.
SW AZ-GTi mount in EQ mode.
iOptron SkyTracker Pro.
The following user(s) said Thank You pug916

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2 months 2 weeks ago
knro
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Experiences Using SM Beta on RPi 4, 4GB #42868
I don't believe many (if any) reported issues with the hotspot stability with RPi4. So this might be something in your environment perhaps that affecting the signal.. you can VNC in and try to change some of the hotspot parameters like selecting specific channels or specific frequency (2.4 vs 5ghz) and then seeing which one is stable.

Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
How to Submit Logs when you have problems?
Add your observatory info

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2 months 2 weeks ago
maxthebuilder
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Experiences Using SM Beta on RPi 4, 4GB #42869
Jasem,
Good to know that there's no problem with the hotspot in general.
I certainly will play with the settings.
I can VNC over the wired connection reliably.
I did restore RPI3 kstars/ekos settings backup over to RPI4 - maybe this is causing my problem?
Maybe I should do a fresh install/config.
Thanks!

knro wrote: I don't believe many (if any) reported issues with the hotspot stability with RPi4. So this might be something in your environment perhaps that affecting the signal.. you can VNC in and try to change some of the hotspot parameters like selecting specific channels or specific frequency (2.4 vs 5ghz) and then seeing which one is stable.


Max S.
RPI 3 B+ and RPI 4 B (4Gb) with Stellarmate OS.
Nikon D5300. Nikon D5500 H-a modified. 180 mm f/2.8 antique Nikon. Tamron AF 28-75mm f/2.8.
AT72EDII refractor. ZWO ASI294MC Pro
ZWO ASI120MC-S on ZWO 30F4 MiniScope.
SW AZ-GTi mount in EQ mode.
iOptron SkyTracker Pro.

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2 months 2 weeks ago 2 months 2 weeks ago by maxthebuilder.
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Experiences Using SM Beta on RPi 4, 4GB #42931
Jasem,
This is not RPI4-related...

Now I remember - I had exactly the same issue when I upgraded to SM 1.4.2 from SM 13.x on RPI3.
Reported here: www.indilib.org/forum/mounts/3482-skywat...html?start=156#40666
Hotspot behaves normally in 1.3 and not normally with 1.4

Today I spent some more time with RPI4 with SM 1.4.3.
-- most often the "stellarmate" hotspot refuses to be connected to
-- sometimes, instead of direct connection, it opens connectivitycheck.gstatic.com with Ekos Live login page and then connects.
-- rarely it connects as it should but after a few minutes it drops the connection

Any idea on what might be going on?
Can it be related to the changes made for the new StellarMate App?

Thanks!

Max S.
RPI 3 B+ and RPI 4 B (4Gb) with Stellarmate OS.
Nikon D5300. Nikon D5500 H-a modified. 180 mm f/2.8 antique Nikon. Tamron AF 28-75mm f/2.8.
AT72EDII refractor. ZWO ASI294MC Pro
ZWO ASI120MC-S on ZWO 30F4 MiniScope.
SW AZ-GTi mount in EQ mode.
iOptron SkyTracker Pro.

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2 months 1 week ago 2 months 1 week ago by maxthebuilder.
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Experiences Using SM Beta on RPi 4, 4GB #43134
Jasem/All,
Hopefully, I found the culprit - the power supply.
I re-flashed SM 1.4.3. At first, everything was fine and the hotspot was stable - I could connect to it from phone, tablet, PC and the mount.
However, after about 3 hours the hotspot dropped the connection and I couldn't connect to it any more.
Reboot didn't help.
What helped was - to shut RPI4 down and wait for some prolonged time and then boot it up.
So I thought - it's either overheating or underpower.

I was powering RPI from a charging port of a USB hub. It's only 2.1A.
Switched to an official 3A adapter - the hotspot has been stable and operational for more than 24 hours since then.

Question. The hub has 2 dedicated charging ports. 2.1A each. If I use both of them (in parallel) to power RPI, will this give me 4.2A total?

Thanks!

Max S.
RPI 3 B+ and RPI 4 B (4Gb) with Stellarmate OS.
Nikon D5300. Nikon D5500 H-a modified. 180 mm f/2.8 antique Nikon. Tamron AF 28-75mm f/2.8.
AT72EDII refractor. ZWO ASI294MC Pro
ZWO ASI120MC-S on ZWO 30F4 MiniScope.
SW AZ-GTi mount in EQ mode.
iOptron SkyTracker Pro.

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2 months 1 week ago
knro
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Experiences Using SM Beta on RPi 4, 4GB #43136
I don't think it works this way... you need a minimum of 3A+ power supply. I think for RPi4, they even say 3.1+

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 AstroNerd, pug916

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2 months 1 week ago 2 months 1 week ago by maxthebuilder.
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Experiences Using SM Beta on RPi 4, 4GB #43137
Well.. They say it's 2 x 2.1A independent ports.
I ordered a y-splitter USB cable - will see if it works.
Also ordered a 5A 12V to 5.1V converter - this one should work for sure.

But speaking of the hotspot stability... When powered with an official 3A+ power supply - no problems. Stable.
Just shot a 2-hour-long sequence without a trouble.

Thanks!

Max S.
RPI 3 B+ and RPI 4 B (4Gb) with Stellarmate OS.
Nikon D5300. Nikon D5500 H-a modified. 180 mm f/2.8 antique Nikon. Tamron AF 28-75mm f/2.8.
AT72EDII refractor. ZWO ASI294MC Pro
ZWO ASI120MC-S on ZWO 30F4 MiniScope.
SW AZ-GTi mount in EQ mode.
iOptron SkyTracker Pro.

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