Search found 42 matches

by bdickens
Thu Jan 18, 2007 6:37 am
Forum: General Discussion
Topic: Monitoring Water Current direction and speed
Replies: 19
Views: 9227

Monitoring Water Current direction and speed

Good thoughts. My house happens to be on the lagoon so I have a secure spot to monitor from and as it happens, my neighbor (who drafted me into this) has line of sight to the entire lagoon (peninsula) so I could always monitor from that point. I didn't think the RF would work over 8 miles of lagoon ...
by bdickens
Wed Jan 17, 2007 1:20 pm
Forum: General Discussion
Topic: Monitoring Water Current direction and speed
Replies: 19
Views: 9227

Monitoring Water Current direction and speed

First, thanks everyone for the comments. I hadn't thought of the twisting, but you are right. I can't use GPS since at least two of the sensors will have to be located near the bottom. One area is a freshwater inflow from a lake and the other is salt from the gulf. I'll need to figure out where the ...
by bdickens
Wed Jan 17, 2007 6:37 am
Forum: General Discussion
Topic: Monitoring Water Current direction and speed
Replies: 19
Views: 9227

Monitoring Water Current direction and speed

I have gotten involved with a project to monitor water quality in a lagoon. In addition to the usual chemistry fun, I'd like to monitor the water current direction and if possible, the speed. I'm going to need quite a few of the sensors, so cost is an issue. My current plan is to install about 10 of...
by bdickens
Wed Dec 20, 2006 12:20 pm
Forum: Computer Programming
Topic: Coupling wind speed to fountain pump
Replies: 2
Views: 2816

Couple pump to fountain

That makes sense. I've got some electronic books with comparitor circuits so I should be set. Thanks
by bdickens
Sat Dec 16, 2006 3:36 am
Forum: Computer Programming
Topic: Coupling wind speed to fountain pump
Replies: 2
Views: 2816

Coupling wind speed to fountain pump

In the winter, my fountain tends to lose water due to an increase in wind speed. While the pump shuts off when the level drops too low, I was thinking of trying to couple the pump to a wind speed indicator. So if the wind speed exceeds 10mph, the pump shuts off. Anyone done something similar ? Begin...
by bdickens
Wed Nov 29, 2006 5:04 pm
Forum: Robotics
Topic: SUBMARINE
Replies: 4
Views: 3821

submarine

My son and I built one a while ago and have another in construction. Look for the submarine links. This one http://www.hrfsbo.com/sub/ is pretty good. I don't like the ballast tank system but if you must... you must. (I prefer to just use bilge pump motors to push it up/down, at 70 ft, I never got a...
by bdickens
Thu Nov 16, 2006 2:38 pm
Forum: General Discussion
Topic: Interfacing a PC to a Sonar unit
Replies: 1
Views: 1001

Interfacing a PC to a Sonar unit

I've got a PC on my boat for navigation and for the underwater camera. I recently decided to replace my sonar unit and was a bit disappointed in the feature/price set. Lot of money. Does anyone know of either a way to interface a standard sonar transducer to a PC or, any PC products that do so ? My ...
by bdickens
Mon Aug 28, 2006 9:42 am
Forum: General Discussion
Topic: Switching Video Feeds
Replies: 4
Views: 1783

Switching Video Feeds

Thanks ! That smarthome device looks interesting. I appreciate it.
by bdickens
Fri Aug 25, 2006 5:07 pm
Forum: General Discussion
Topic: Switching Video Feeds
Replies: 4
Views: 1783

Switching Video Feeds

I have a single TV in the living room and I would like to set up a video switcher so I can cycle through 3 different video feeds, 2 from video cameras and one from the weather station software (PC). I'd like to cycle through about 20 seconds for each and be able to stop on one if needed. Anyone eith...
by bdickens
Sat Dec 31, 2005 3:36 pm
Forum: General Discussion
Topic: Sound Activated Switch - Underwater
Replies: 1
Views: 673

Sound Activated Switch - Underwater

Another underwater question... We have a pod that has a camera on the bottom of a newly established reef. The coax is connected to a buoy which gets cut off or ripped up pretty regularly. I was wondering if there was a simple switch circuit that would allow me to "ping" the box, and have it reel the...
by bdickens
Fri Nov 04, 2005 2:16 pm
Forum: General Discussion
Topic: Solar charger switch
Replies: 5
Views: 1452

Re: Solar charger switch

Sorry: I was on the road and it took a while to get back. Yes, the light is to attract fish to the dock. I'll look at the circuits. Thanks for aiming there.
by bdickens
Fri Nov 04, 2005 2:10 pm
Forum: General Discussion
Topic: Battery Backup for Power Fail
Replies: 7
Views: 1916

Re: Battery Backup for Power Fail

thank you everyone who responded. Some great information and effort here. Thanks again
by bdickens
Tue Oct 25, 2005 1:05 pm
Forum: General Discussion
Topic: Solar charger switch
Replies: 5
Views: 1452

Solar charger switch

My fishlight is working (thanks to a lot of suggestions) and I am now charging the battery with a solar panel (with diode) and thats working great. But I am also manually disconnecting / reconnecting light and charger. Is there a simple DC relay that will switch off the light when the solar panel st...
by bdickens
Tue Oct 25, 2005 1:00 pm
Forum: General Discussion
Topic: Battery Backup for Power Fail
Replies: 7
Views: 1916

Battery Backup for Power Fail

I have a variant on an earlier question. I have a situation where, when the AC power fails, I need to turn on a DC powered pump and run it until the AC comes back on. It runs easily for 2 days from a 12 v car battery. I was tinkering with this but AC "tinkering" makes me nervous. So I need something...
by bdickens
Thu Sep 29, 2005 1:33 pm
Forum: General Discussion
Topic: Aquarium Backup
Replies: 6
Views: 1595

Re: Aquarium Backup

Thanks all. After some consideration, I decided to just go with an oversized UPS. Seemed like the prudent thing to do. Thanks again