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I guess the trick would be finding a way to securely attach the black box in a way that would ensure its release in a catastrophic disaster.
Earlier quoted context omitted.
I'll admit I only watched a video on it not the report, but it had pictures reportedly redacted at manufacturer request. It showed a teensy 3 and some adafruit qwiic board in there. Obviously the real engineering is in the enclosure. Otherwise it could just be a webcam. But still, it's clearly not a very in depth electrical design. I'm all for SoMs if you can but they don't guarantee you the adventure of custom hardw…
No serious commercial product should be using a Teensy under basically any circumstance.
If a hardened camera can survive, I'm surprised subs don't have a floating black box that can survive an implosion and then float to the surface and begin emitting a radio signal. I guess the trick would be finding a way to securely attach the black box in a way that would ensure its release in a catastrophic disaster.
Earlier quoted context omitted.
No, conformal coating and potting are extremely different things done for different reasons.
I'm not talking about which methods are being used, I'm talking about which methods could be used. Further, potting, where you let the epoxy drip off, gives you a conformal coating.
Earlier quoted context omitted.
Why isn't a cellphone filled with epoxy?
How would you do screen replacement? That is a common repair since people drop their phones and currently you can get your phone repaired by some teenager in a booth at the mall. If you fill the phone with epoxy, how are you detaching the screen, and getting a new ribbon cable through the epoxy?
The NTSB's original report has more detail on how the SD Card was encrypted and how the NTSB managed to decrypt it: https://data.ntsb.gov/Docket/Document/docBLOB?ID=18741602&Fi...
Does not leave SubC in a particularly flattering light...
If a hardened camera can survive, I'm surprised subs don't have a floating black box that can survive an implosion and then float to the surface and begin emitting a radio signal. I guess the trick would be finding a way to securely attach the black box in a way that would ensure its release in a catastrophic disaster.
Just guessing here? :)
If a hardened camera can survive, I'm surprised subs don't have a floating black box that can survive an implosion and then float to the surface and begin emitting a radio signal. I guess the trick would be finding a way to securely attach the black box in a way that would ensure its release in a catastrophic disaster.
I guess he wasn’t planning for a catastrophic failure ?
There is something slightly romantic about dying in such a way that his body turned to mist and floated away in the current. A bit like having your ashes spread at sea. With fewer steps.
Figure 3 from the report- that's an Adafruit sensor module on a 3d printed bit of plastic with a teensy-brand microcontroller just sitting in there! Actually, the entire electronics enclosure appears printed. Very funny to see in what I assume is a million-dollar product.
It continues to amaze me how indestructible SDCards are.
It's a solid piece of silicon encased in epoxy, so there's nothing really to get crushed. Contrast this to something like a cellphone that's made of hundreds of separate parts and has void space that will get crushed.