ultrasonic antifouling

[gypsylyon]

hello, I'm samuel from France and new on this forum

I just started to build an electronic ultrasonic antifouling. If some makers are interested I can share what I found (electronic, source code, efficiency studies...)
My system is from the kit described in epe sept 2012: http://www.epemag3.com/proj/0912.html
It is based on a PIC microcontroller 12f675 (12F615 for mine), and seems to work nice...on the test bench :p
By the way I'm a happy raspberry / opencpn user since a few months (in fact opencpn added on a SDRplay system for meteofax and navtex, ais, NOAA sattelite images...).

I'm opening this OpenPlotter thread because the ultrasonic board may be easily modified for a raspberry or arduino instead of the PIC. That could be interesting to monitor and optimise frequencies (to find the best resonnances mode for each hull)..., manage power against battery state, I think we could even add a "receive" mode with a different transducer at higer frequencies (or harmonics?) to use it as a deepth sounder...(but what about dolphins? :p )
I 'm not very good at linux/programming so it will take a long time for me to integrate this on my RPI, but maybe someone else is interesteded to also test and develop this system?

https://www.facebook.com/photo.php?fbid=...ee111d0e93








Hi.

I was thinking of using Raspi to do a multi-channel ultrasound antifouling.
The problem is that with python you can't be over 20kHz, to achieve this you have to program in C.
As I suppose that you know, an ultrasound antifouling uses frequencies up to 40 kHhz.
Now I'm learning the libraries in C to do a test program.

Greetings