Microcontroller for sonar.
The values output on the screen are distance, depth and weight from the top.
I'm not very good at maths and the depth value is not very stable, so I can't guarantee the result.
I think the direction and weight are correct. Maybe.
[b]Notes on placing the sonar[/b].
[list]
[*] Always make sure the + is around the right.
[*] Always make sure that the top of the sonar is pointing towards the seabed.
[*] Always place the altimeter next to the sonar.
[/list]
.Place it like this
[img]https://i.imgur.com/RSFyDJc.jpeg[/img]
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