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I built an ROV to solve missing person cases

suanto.com

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Re: I built an ROV to solve missing person cases

#71

I throughly enjoyed reading the entire story. However I found it strange he sort of ended with “they searched for the car and asked us to leave.” The first one they got thanked profusely. But at no point did the author ever claim to have definitively found the car or the body. It’s humble but almost oddly so. Anyway great story.

He did say there was a front page article about that case.

Re: I built an ROV to solve missing person cases

#72
post #71

I throughly enjoyed reading the entire story. However I found it strange he sort of ended with “they searched for the car and asked us to leave.” The first one they got thanked profusely. But at no point did the author ever claim to have definitively found the car or the body. It’s humble but almost oddly so. Anyway great story.

He did say there was a front page article about that case.

I know. But a natural conclusion would be “they found the car with his body inside it” or something similar. There was never a clear affirmation of success or detail of what success looked like. It’s ok! Just weird.

Re: I built an ROV to solve missing person cases

#74
post #2

As you can see, this is long: https://suanto.com/2024/06/06/the-time-I-built-an-ROV-02/ https://suanto.com/2024/06/06/the-time-I-built-an-ROV-03/ https://suanto.com/2024/06/06/the-time-I-built-an-ROV-04/ https://suanto.com/2024/06/06/the-time-I-built-an-ROV-05/ https://suanto.com/2024/06/06/the-time-I-built-an-ROV-06/ https://suanto.com/2024/06/06/the-time-I-built-an-ROV-07/ https://suanto.com/2024/06/06/the-time-I-b…

In the video in part8, at 0:30s there's something that could be a hand. I hope it wasn't a hand. There's no comment in the text of what it might be.

Re: I built an ROV to solve missing person cases

#75
post #29
post #11

I loved the project!! I also like how “messy” the room is, reminded me of my room (1) when I was working from home years ago. I haven’t read the whole thing but I will, however, I did go through the technical details, some notes: > This model didn’t have a long enough range on the analog sticks I see you are using Radiomaster tx16s, pro tip: You can use ELRS 2W model on BOTH transmitter and the receiver, don’t use th…

I took the comment[1] on the analog sticks to be referring to the game controller pictured directly above: https://suanto.com/assets/2024/03/the-ROV-controller.jpg I'm guessing that the range of resistance values over the full swept range of the sticks was small, and so getting precise enough values/smooth enough change out of it wasn't possible. (Assuming these things basically have X and Y potentiometers for each s…

> I'm guessing that the range of resistance values over the full swept range of the sticks was small

My assumption was they meant the distance of movement on those small joysticks was too small, so the precision problem wasn't measuring the resistance, but in accurately moving the sticks to the right place to get the desired control input when they only have tiny amounts of travel.

Re: I built an ROV to solve missing person cases

#76
post #68

Absolutely fantastic read. The author got nerd-sniped HARD by these missing-person cases and his approach and accomplishments are inspiring, to say the least. Very well done!

For the first case I kept wondering why they needed so much complicated technology. The water they’re searching isn’t all that deep a cheap canoe and a long pole with a go pro, and a magnet on a rope would have been equally effective, cheaper, and faster. But for the second case that they needed the be able to search a much wider area and the tire tracks likely wouldn’t have been visible in on a camera. Really cool p…

> For the first case I kept wondering why they needed so much complicated technology.

"It's always in the last place I looked"

I think we're seeing the first few guesses for where the car might be, but according to the author, there was a 40km distance between the cabin and the girlfriend's town.

Hindsight is 20/20, but I wouldn't put it past the author to commit beyond 3 search sites, some of which may require deeper and larger bodies of water (like the second investigation did).

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