Re: First "Real" Astrid Try (Long)
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You are right about the marking, I hadn't noticed that.
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Operating System load instructions are here--you can do half of it ahead of time (the first 5 major bullets in his list) if you want to:
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Build the SD Card following the instructions here:
using the image file here:
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I was worried about these steps--I tend to be software challenged.? But it turned out to be easy--even for me.
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Both the Astrid and Runcam CMOS devices have windows. Typically the windows are really thin (0.4 mm for some of the ones we use at work), and close to the CMOS active surface--so they really do cast intense shadows I know.
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Steve
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From: George <georvisc@...>
To: OccultNEUS <[email protected]>
Date: Sunday, 26 November 2023 3:21 PM EST
Subject: Re: [OccultNEUS] First "Real" Astrid Try (Long)
Steve:
Thanks. Interesting. Pictures are worth 1000 words.
It reassures me a bit in the size of the ASTRID sensor (that it has a "usable" FOV).
BTW: The numbers "296" can (sort-of) be seen on the sensor board - so you do have the Sony IMX296 sensor.
While I'm writing (and waiting to hear from Mark about an ASTRID for myself),....
I gather the "Operating System" for the camera is on the Micro-SD card, and nothing but images end up (or are on) the larger Flash Drive (thumb drive). How does one get the operating system on the Micro-SD? It's not clear in Mark's assembly info on GitHub?
BTW: Be careful about dust on the exposed sensors. You may get an "unexpected" occultation - especially when doing a drift-thru! I think this is something few folks realize! (You can 'test' for dust on a sensor/camera that has no optical window a bit in front of the sensor by doing an occasional flat field). Attached is what a flat from my NE2 looks like.
George
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Steve C