Fred Fourie is building a low-cost underwater camera for shoal deployment, and his prototypes are already returning fascinating results. You can build your possess PipeCam, and try a undiscovered inlet with a Raspberry Pi and off-the-shelf materials.
Materials and build
In a latest iteration, PipeCam consists of a 110mm PVC rubbish siren with equipment and a 10mm perspex window during one end. Previous prototypes have also used plumbing materials for a body, though this latest chronicle employs heavy-duty tools that broach a good sign this plan needs.
In testing, Fred and a crony dynamic that a supply could withstand 4 bar of pressure. This is adequate to strengthen a tech inside during a inlet Fred skeleton for, and a poignant opening alleviation on prior prototypes.
Inside a siren are a Raspberry Pi 3, a camera module, and a real-time time appendage board. A 2.4Ah rechargeable lead poison battery powers a set-up around a voltage regulator.
Using froth and fibreboard, Fred done a mountain that binds all in place and fits snugly inside a pipe.
PipeCam will be theme to sea currents, not to discuss a attentions of sea creatures, so it’s essential to make certain that all is hold firmly inside a siren – something Fred has schooled from prior versions of a project.
It’s candid to write time-lapse formula for a Raspberry Pi regulating Python and one of a giveaway online resources, though Fred has some-more desirous skeleton for PipeCam. As good as a Python book to control a camera, Fred done a web page to arrangement a health of a device. It shows battery turn and storage availability, along with a latest print taken by a camera. He also done adjustments to a camera’s bearing settings using raspistill. You can see a outcome in this corresponding comparison of a default python-picam image and a edited raspistill one.
Fred has finished a initial initial exam of PipeCam, using a device underneath H2O for an hour in two-metre low H2O off a seashore nearby his home. And a results? Well, see for yourself:
PipeCam is a work in progress, and we can review Fred’s build record during a project’s Hackaday.io page, so be certain to follow along.
Source: Raspberry Pi blog, created by Alex Bate.
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