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02 Jan 2018
INDI development team is happy to announce the release of INDI Library v1.6.0. This new exciting release builds on the maturity of INDI Library and comes with many new supported devices and fixes for existing drivers.
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TOPIC: Question about message frequency

Question about message frequency 1 week 3 days ago #22330

  • mworion
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Hi all,

as I started to program a little bit on INDI, I wonder if it is possible to increase the repeat rate of subscribed messages like 'CCD_EXPOSURE', 'CCD_EXPOSURE_VALUE' to get it more often. Actually I see the message come in over IP at every 1-3 second. I would like to show the Exposure timer count down to know how long the exposure will take.

Second question: Is there any chance to get the status of the camera (IDLE, EXPOSING, DOWNLOADING etc.) like it is possible with most ASCOM drivers ?

Any help appreciated.

Michel

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Question about message frequency 1 week 2 days ago #22339

CCD_EXPOSURE value frequency depends primarily on the driver and to a second degree to network speed and congestion, so you cannot change that from the client side.

Regarding the 2nd question, not directly, but you can infer it from CCD_EXPOSURE state:

IPS_IDLE: Idle
IPS_OK: Download completed successfully and camera is now idle.
IPS_BUSY: If CCD_EXPOSURE value = 0, then it is DOWNLOADING, otherwise, it is exposing.
IPS_ALERT: Exposure failed.

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Jasem Mutlaq
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