I'm seeing a number of people defending the use of a logitech controller being used in the Oceangate sub claiming it's totally normal for heavy machinery to be controlled by such devices and I feel the need to yell from the rooftops that, while it's faaaar from the worst factor at play here...
NO, IT IS NOT ACCEPTABLE TO USE A BUDGET THIRD PARTY VIDEOGAME CONTROLLER TO DRIVE A SUBMARINE
Listen. I hear you. You can use a commercial videogame controller for a lot of surprising things. They're ergonomic, incredibly easy to use, highly familiar to a massive portion of the population, very adaptable to pretty much any system you can slap a usb drive to, but do you know what they're not?
Reliable
They're made with cheap parts and are NOT built to last. I've had to replace dozens of videogame controllers for multiple different systems and for a variety of reasons. Compatibility issues, degrading input accuracy, unresponsiveness, all the way down to plain old wear and tear. Shit, I had to replace a dualshock 4 controller this month because holding directly up on the left analogue stick would have the input wavering 8~ degrees left or right.
I watch a castlevania speedrunner on twitch who uses the Logitech f310. It's an extremely similar model to the one used in the Oceangate sub. He talks about having to replace it every couple of months because they wear down so quickly. These are not devices made to steer one of the single most dangerous vehicles humans have ever created. Let me reiterate, even professional videogame players and speedrunners don't trust their controllers to last longer than half a year at best. Not that Mango is going to be using the sub to practice his tech skill but it says a lot about how temperamental these things can be.
The fact that it's got those little dongers on the analogue sticks for more precise movement should tell you everything, really. They recognise that the accuracy of that thing simply isn't good enough. It's not even a digital input modifier like hitbox controllers have, it's a cheap ass 3d printer looking plastic cone on a third party video game peripheral. It's not a budget issue either. If they needed more accurate fine controls the could've gotten a steering mechanisms with more accurate fine controls.
There's so much wrong with the Oceangate sub that it's a miracle anyone thought it was a good idea. There's no seats. You're bolted in with no way to open the sub from the inside. All the controls are digital with no mechanical backups. There's no distress call system. There's no black box equivalent. The one porthole isn't rated for depths even half as deep as they're going. Communication is demonstrably unreliable. All issues way more likely to cause a catastrophic incident. I would be surprised if the logitech controller specifically was the root cause of this one incident but don't let the truly comically bad engineering of the sub in almost every other sense trick you into thinking that it's acceptable for such an expensive and dangerous vehicle to be steered by a device many wouldn't trust to control mario with a consistent level of precision.