[Vexs]

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.

[MengerSponge]

On-brand, though. And speak some respect to Adafruit's name! Lady Ada's product isn't what failed.

[hinkley]

What was the water condensation situation like in this submarine? Semi bare electronics sounds very very bad.

[progbits]

This is a camera outside the sub, and the electronics are inside sealed enclosure. If that had any leak for water to get in some conformal coating isn't going to save you, it will get pancaked.

Of course random arduino module and teensy used for product is amateur hour, even for low volume production. They must have crazy margins on that camera and producing custom board is very cheap.

[MengerSponge]

Any money spent coating those semi-bare electronics would have been wasted. There's an engineering lesson to be taught here, I'm sure.

[blueflow]

Lol, and the censored controller is a teensy 3.2