Thinking of using a wine bottle with a cork that barely sticks out.
Anyhow, I want to put in a GPS, a battery (that can last 1 month hopefully) and a transmitter and to be able to collect position about every minute or so. I am thinking about the possibility of harnessing the power of the waves to generate electricity.
Off-the-shelf components are preferred. What are my options as far as hardware and software choices?
Thank you in advance!
EDIT: I want to measure current, not wind, so I want the bottle to be as much in the water as possible.
I also want to launch several bottles in order to figure out the degree to which the current is chaotic. This means that I need to control the costs. Also I would need to recreate similar tide conditions. I am curious if objects in the ocean channel move in a zig-zag manner (tide vector would be perpendicular to overall current in this case due to a river), if the tide is strong enough to push it against the current, and whether things stick around or flush out into the open. Thank God for GPS.
This is related to a possible drowning mystery - no body found yet. There is a chance that the person is still in the ocean. The trouble is that it could be anywhere by now; it has been a few weeks. There are many islands on the way to a completely open ocean, so it could be stuck in some particular location.
I wish I have thought of this earlier. I did not know the person myself, so do not worry about expressing sympathy. I am approaching this cold-headed; I just find it very intriguing.