David Murphy
  • New Brunswick
  • Canada
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Latest Activity

Jim left a comment for David Murphy
" David, It was the battery contact on the positive side of the tube. the solder connection was higher than the middle of the contact so there was a bad connection. The topside adapter works good lights on both boards, however when downloading…"
Jun 11
David Murphy left a comment for Jim
"Hi Jim I am available for a phone call. 506-878-1933 call anytime between now and 4PM EDT"
Jun 11
David Murphy commented on David Lang's blog post Dev Call Recap 6.9.2014
"Love your new headquarters, sorry I missed the meeting as I had company drop by and we went out for dinner."
Jun 9
David Murphy commented on Dave Hinton's blog post Maiden fllight
"great video I also enjoyed watching the Quad , oh my another toy that I must have :)"
Jun 7
David Murphy commented on Brian A's blog post Cockpit Software release 2.5RC2
"Great work Brian I appreciate all the work that goes into doing this. I downloaded and burned the OpenROV-2.5-24.img to an 8GB sd card. booted the ROV and the cockpit came up as expected. Tried to upload the Arduino code a few times and it fails…"
May 24
David Murphy commented on David Lang's blog post Depth Testing with Darcy!
"You need to use two ESC's, if you try to run two motors from one ESC the ESC gets confused because it gets feedback from the motors, and I just use the one controller Vertical connector with a Y cable connector to the two ESC's"
May 19
David Murphy commented on David Murphy's blog post ROV for Sale
"Thanks for your interest Jim will stay in touch, send me an email SeaWinds@nb.sympatico.ca "
May 9
Jim N. commented on David Murphy's blog post ROV for Sale
"Dave, I'm not an eBay guy by any means, but I am looking for a quick hull that can allow for quick connect sensor mounts for an AUV project. My PVC kits are not sufficient and my OpenROV kit is dedicated to just that. Send me a message and lets…"
May 9
David Murphy commented on David Lang's blog post Depth Testing with Darcy!
"This should be on MythBusters :) can't wait to see the results. Go Darcy Go!!"
May 9
David Murphy commented on David Murphy's blog post ROV for Sale
"Hi If you follow the link to the eBay posting it should have all the details along with some pictures. The motors are the same as those used in the OpenROV kit along with the same ESC's, This has the BBW & Cape, I have used an Led Driver to…"
May 9
Ion commented on David Murphy's blog post ROV for Sale
"Hi Dave: There is no information on that page other than the price. May we know which motors, depth range, electronics, etc .... are fitted on the ROV ? Kind regards"
May 9
David Murphy posted a blog post
May 8
Laughlin left a comment for David Murphy
"Thanks David! Good to know!"
May 1
David Murphy left a comment for Laughlin
"Hobbyking replaced my motor with no issues.\ I just told them that I used a ohm meter and measured a short from one winding to the case of the motor and they shipped me out a motor. Regards Dave"
May 1
David Lang commented on David Murphy's blog post Update on my builds
"Really cool David!! This inspired me to go through and find all the OpenROV derivatives. There's way more than I thought. Yours will headline Part 2 of that series!"
Apr 21
David Murphy posted a blog post

Update on my builds

I have been busy this past winter upgrading my build to the new controller Board and BBB along with changing my motors to the same as those used in the Open ROV. Had some Thrusters 3D printed and switched my lights to smaller housings and added the Lasers, IMU and another light under the ROV. Now I am all ready for the testing to see how this puppy performs. With the smaller motors I should reduce the ESC over temp conditions I had with the bigger motors and hoping the new thrusters give me…See More
Apr 20

Profile Information

About Me
I have been a diver for many years but now retired. My backround is Electronics Engineering Technologist and I work in the Computer Support Environment for many years.
My interests in ROV Submarines
My son has been building ROV's for the past 2 years and now has me interested in get back beneath the waves but staying dry :).
Hometown
RIverview

David Murphy's Blog

ROV for Sale

Hi folks

I have an ROV that I put up on eBay if any one is interested.

http://www.ebay.com/itm/Under-Water-ROV-OpenROV-Underwater-Remotely-Operated-Vehicle-/281330536978?ssPageName=ADME:L:LCA:US:1123

Regards

Dave

Posted on May 8, 2014 at 6:15am — 4 Comments

Update on my builds

I have been busy this past winter upgrading my build to the new controller Board and BBB along with changing my motors to the same as those used in the Open ROV. Had some Thrusters 3D printed and switched my lights to smaller housings and added the Lasers, IMU and another light under the ROV. Now I am all ready for the testing to see how this puppy performs. With the smaller motors I should reduce the ESC over temp conditions I had with the bigger motors and hoping the new thrusters give me…

Continue

Posted on April 20, 2014 at 11:30am — 2 Comments

1st. Salt Water Dive Halifax Nova Scotia North West Arm

This was my 1st Salt Water Dive and one thing I forgot to bring was my heavier lead weights for ballast. I needed about 20oz extra weight to make it neutral in salt water, but there were plenty of rocks on the shore so my ROV was ok with that :) . I loaded the latest image software for this dive and noticed a few things that I never experienced with the Old Software. 1st off you will notice the video to be very choppy and I was not sure if this was because of the new firmware or if I had…

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Posted on September 8, 2013 at 8:21am — 2 Comments

One last video of Little Hawk Lake Daylight dive to 60'

This will be my last post on Little Hawk Lake. I have learned a lot from each dive I did. One thing I learned at the end of this dive was to turn down the lights and it gives a much better view of the bottom horizon during daylight diving. On this dive if you go to the end it shows my Tether spool reeling in the tether. This setup has worked flawlessly and made it so easy to manage the tether. I had did a post on this sometime ago if anyone is interested in building one. Lake diving is like…

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Posted on August 17, 2013 at 4:35am — 5 Comments

Comment Wall (2 comments)

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At 12:24pm on June 11, 2014, Jim said…

 David, It was the battery contact on the positive side of the tube. the solder connection was higher than the middle of the contact so there was a bad connection. The topside adapter works good lights on both boards, however when downloading firmware after 10 trys it fails.

At 1:17pm on May 1, 2014, Laughlin said…

Thanks David! Good to know!

 
 
 

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