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4 Comments
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Jean-Claude (JC) Chagnon
01:33 PM on May 26, 2009
Since water conducts sound very well, use ultrasonics from the floating bouy to the bot and RF from the bouy to the control station. Just a thaught. Great project.
JC
JC
Reply
Carmel
11:22 AM on May 18, 2009
Hi Stuart,
Just found your site and looks pretty good. I am also experimenting but very much in the early phases. Unfortunately my programming is in pretty bad shape and I am using an AVR. Added to that is the problem with the thruster design! But its fun solving one problem at a time.
Cheers,
Carmel
Just found your site and looks pretty good. I am also experimenting but very much in the early phases. Unfortunately my programming is in pretty bad shape and I am using an AVR. Added to that is the problem with the thruster design! But its fun solving one problem at a time.
Cheers,
Carmel
Reply
Paul
04:37 AM on March 06, 2009
Ho Stuart,
My first visit to your site, I'm impressed.
For ballasting my ROV I intend to use pistontype pumps like:
http://groups.yahoo.com/group/robotrov/photos/album/110015068/pic
/1799096244/view?picmode=&mode=tn&order=ordinal&start=1&count=20&
dir=asc
In fact this is a double pistonpump with a total contents of 500 ml, so the buoyancy of my ROV can not exceed 0.4 kg, the remainder is safetymargin.
regards,
Paul
My first visit to your site, I'm impressed.
For ballasting my ROV I intend to use pistontype pumps like:
http://groups.yahoo.com/group/robotrov/photos/album/110015068/pic
/1799096244/view?picmode=&mode=tn&order=ordinal&start=1&count=20&
dir=asc
In fact this is a double pistonpump with a total contents of 500 ml, so the buoyancy of my ROV can not exceed 0.4 kg, the remainder is safetymargin.
regards,
Paul
Reply
Bill-in-CT
10:03 AM on March 05, 2009
Hi Stuart,
Just checked out your site. Seems like alot of trial and error design like all of us. I want to incorporate auto depth control and have a few questions. Is the MPX4115 able to take water on the sensor chip? Did you use the stove pipe port model? What is the plus/minus depth number (differential) to use so the control motion is not jerky. I am using a PIC16f872 and program in assembly. I have analog inputs so an A/D is not needed. Any ideas would be appreciated. PS. Started to experiment with a tire inner tube, but I guess that won't fly.
Bill-in-CT
Just checked out your site. Seems like alot of trial and error design like all of us. I want to incorporate auto depth control and have a few questions. Is the MPX4115 able to take water on the sensor chip? Did you use the stove pipe port model? What is the plus/minus depth number (differential) to use so the control motion is not jerky. I am using a PIC16f872 and program in assembly. I have analog inputs so an A/D is not needed. Any ideas would be appreciated. PS. Started to experiment with a tire inner tube, but I guess that won't fly.
Bill-in-CT
