This camera rig uses a Raspberry Pi to send a camera down fifty meters in order to spy on sharks….
The project used a collection of camera units spread over a large area to monitor shark activity. Each is mounted on an anchored buoy, using solar panels and a lead acid gel battery for power. The RPi itself remains topside in a waterproof box. It connects to the camera using a 50-foot Ethernet patch cable.
via Hack a Day
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