Surf sensor adds depth in search of the ultimate wave
To say that the ocean is a dynamic environment would be an understatement, especially when the coasts are concerned. Waves break, tides come and go, and countless variables even make the usual conditions a guessing game. When [foobarbecue] going surfing, he tries to take all of these things into account. The best waves at its local beach are found directly above an ever-changing sandbar, and their dynamics are affected by depth, another constant variable. [foobarbecue]is the brilliant solution to understand the current conditions? Build a sonar directly into his surfboard!
At the heart of the “surfsonar” is the Ping Sonar Echosounder, a sonar transducer designed for AUVs and ROVs. [foobarbecue] integrated the transducer directly into the card. The data is transmitted to a Raspberry Pi 4b, which displays depth and confidence (a percentage of the measurement certainty) on a 2.13-inch e-Paper Display Hat.
Power is supplied by a PiSugar. Charging is done wirelessly, which we think is quite important considering the entire device is sealed inside a modified surfboard.
While this is not a low budget version and there is still room for improvement, early reports are positive. Once clear of breaking waves, the device confidently displays depth. Further tests will show if the surfsonar will help you [foobarbecue] find this ever-moving sandbar!
Surf hacks are always welcome, we featured the LED strip surfboard as well as the surf window, which tells its owner if the surf is up. Be sure to let us know any cool tips you find while surfing the net through our tips line!