18 points | by Kudos 3 hours ago ago
2 comments
I wonder if you could throw a small microcontroller at the bottom of a canal, powered by water passing through a fan, to hide it. And why you would want to do that.
Water quality monitoring. Communicate back to the surface with ultrasonic pulses.
I wonder if you could throw a small microcontroller at the bottom of a canal, powered by water passing through a fan, to hide it. And why you would want to do that.
Water quality monitoring. Communicate back to the surface with ultrasonic pulses.