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Old 12-04-2018, 13:11   #1
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Depth Sounder for OpenCPN

I'm looking to add a really basic depth sounder and pipe it into OpenCPN. Does
anyone have a suggestion for a sub $100 (US) one which I can pipe into Open CPN (I'm thinking NEMA 0183 with no screen)...
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Old 12-04-2018, 18:38   #2
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Re: Depth Sounder for OpenCPN

I am attempting to build a depth sounder using $8 ultrasonic cleaning transducers.
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Old 12-04-2018, 18:47   #3
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Re: Depth Sounder for OpenCPN

Cruzpro make a series of active depth transducers with NMEA 0183 output:

CruzPro NMEA 0183 Active Depth & Temperature Transducers using Digital Signal Processing (DSP)

but they'll set you back closer to $200.
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Old 12-04-2018, 19:09   #4
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Re: Depth Sounder for OpenCPN

There are plenty of NMEA 0183 transducers. Airmar makes them in any configuration you can imagine. Finding one under $200 will be tough though. I was in a resale shop in Port Charlotte a few months ago and they had at least one NMEA0183 transducer. I don't recall the price however.
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Old 13-04-2018, 04:28   #5
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Re: Depth Sounder for OpenCPN

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Old 13-04-2018, 16:31   #6
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Re: Depth Sounder for OpenCPN

Following...
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Old 14-04-2018, 10:50   #7
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Re: Depth Sounder for OpenCPN

KeelMe - yes that is what I've been finding..

Quote:
Originally Posted by KeelMe View Post
There are plenty of NMEA 0183 transducers. Airmar makes them in any configuration you can imagine. Finding one under $200 will be tough though. I was in a resale shop in Port Charlotte a few months ago and they had at least one NMEA0183 transducer. I don't recall the price however.
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Old 14-04-2018, 17:32   #8
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Re: Depth Sounder for OpenCPN

my parts are in the mail, I will make a free design to measure depth and kit cost $20. Full schematic, and parts to be published and easily assembled with soldering iron.

Next I am planning to use 2 or more transducers to also measure waterspeed and temperature, but this requires much higher speed measurements, so it might need more design.

If anyone could help sponsor my project, please contact me via PM. I can send you the schematic, I have already ordered printed circuit boards. Once I get it made, I want to support any marine transducer, or even cheap ultrasonic cleaners.

I will make it either way, but I am delayed because I have no money. I want to order more parts for more experiments, so far what I on the way can maybe work. I put everything into my autopilot, see here:

https://www.youtube.com/edit?o=U&video_id=ZaLBRRelT-M
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Old 14-04-2018, 18:37   #9
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Re: Depth Sounder for OpenCPN

This is the correct link

https://youtu.be/ZaLBRRelT-M
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Old 16-04-2018, 05:10   #10
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Re: Depth Sounder for OpenCPN

Many developers of navigation software integrate the Vexilar sounder. Can CPN add Fishfinder as a plug-in?
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Old 04-04-2019, 11:04   #11
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Re: Depth Sounder for OpenCPN

Has there been more development on an inexpensive depth sounder for OpenCPN?
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