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INDI Library v1.9.3 Released (11 Nov 2021)

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

What FPS is expected with SM / Pi 4 / ZWO ?

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  • Thank you received: 3
I just purchased a ZWO ASI 178MC to go with the ZenithStar 61 and Raspberry Pi 4. One of the reasons I went with the USB 3.0 ZWO was the very slow frame transfer rate from my Canon 600D when polar aligning etc. The 178 is supposed to run at 30-60 fps according to the specs.

Testing it on Stellarmate with Video preview or Looping shots I get from 0.1 - sometime 5 fps but mostly just above 1.2.   Is that expected ? Granted the time to download an image from the camera has dropped from 10s for the Canon to 1.5s for the 178.

I'm using a Pi4 and its blue USB 3.0 socket and the supplied USB 3.0 cable from ZWO.

I thought at first it may be the write speed of the SDCard (Class 10 but who knows) so I switched to running SM from a SSD without any improvement.

Just wanted to ask people who are already running this sort of setup with SM.

Thanks
Rig1: WO ZS61, ZWO ASI 178MC, iEXOS-100, INDI/EKOS on Ubuntu
Rig2: Samyang 16mm, Canon 600D, Star Adventurer Pro, APT
2 months 16 hours ago #76164

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Yes RPi have weak CPU so that 5FPS is within expectations. With my ASI1600 I get around 2FPS without writing it to card. I wrote myself barebone program that downloaded frames from camera as fast it was possible. I could get up to 5FPS or 170MB/s data rate while normal PC could go up to 400MB/s. That was just downloading to RAM and nothing more.
2 months 14 hours ago #76168

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Thanks Nou.

Saves me searching for a problem that isn't there.
Rig1: WO ZS61, ZWO ASI 178MC, iEXOS-100, INDI/EKOS on Ubuntu
Rig2: Samyang 16mm, Canon 600D, Star Adventurer Pro, APT
1 month 4 weeks ago #76242

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