Jump to content

Attention: RC-CAM.com will be closing down August 2021.

The RC-Cam.com forum was the very first online community dedicated to the advancement of wireless video cameras on radio controlled (R/C) models. This is now called "FPV" (First Person View). We are proud of the contributions that our members have made to the FPV hobby.

We've seen significant changes over the last twenty years. Initially there were a lot of eager R/C hobbyist that built their own video systems. Allowing these creative individuals to share their work was the purpose of this site. Now the FPV market is flooded with low cost systems; Sadly DiY FPV video projects are now rarely discussed.

RC-CAM.com (main site and forum) will be closing down August 2021. This is being announced now (March 2021) so that everyone has time to download any information that is important to them. After the site is shutdown the information will no longer be available here.

We appreciate every member's involvement with advancing the FPV hobby. It is indeed sad to say goodbye to all our online friends. Be safe and stay healthy.



Using servos over a 100ft cable to pan camera underwater


videorov

Recommended Posts

I wonder if a servo would be the thing to use for panning a camera in my waterproof housing for underwater

use 100ft down the cable. Can it go 100ft over the cabe? Is the servo better to use and smother then a stepper motor?

I would like to be able to pan left and right up to 180 degrees from center. Have a manual mode and a auto pan mode.

Can I do it with servos and the right contoller curcuit. Is there software out there so I can make my own

sequences.. I would like to run it from a contol box, not a computer. The power would be 12 volts on the boat.

Thanks

Edited by videorov
Link to comment
Share on other sites

  • 1 month later...

One carefuly controlled experiment is often times worth more than a thousand expert opinions. Get 100 feet of cable and try it out. I bet you could find 100 foot run of CAT5 cable anywhere and try it. Make a servo to RJ-45 adapter and you are good to go.

-dave

I wonder if a servo would be the thing to use for panning a camera in my waterproof housing for underwater

use 100ft down the cable. Can it go 100ft over the cabe? Is the servo better to use and smother then a stepper motor?

I would like to be able to pan left and right up to 180 degrees from center. Have a manual mode and a auto pan mode.

Can I do it with servos and the right contoller curcuit. Is there software out there so I can make my own

sequences.. I would like to run it from a contol box, not a computer. The power would be 12 volts on the boat.

Thanks

Link to comment
Share on other sites

As long as the power is local it should work. You could use a 2 conductor cable (with a shield) and send both signals down the same cable. If you want to send the power over 100 ft I would re-think your approach. Even PoE equipment uses a much higher voltage (than a servos 5v) in order to reduce losses. So use a BEC or regulator of some sort to power the servos locally.......

*EDIT* for what it's worth...

http://www.fly-imaa.org/imaa/hfarticles/electro/v6-4-43.html

Edited by eickst
Link to comment
Share on other sites

  • 2 weeks later...

what I would do:

take a 24V to 5V switcher BEC

mount it near the servo end, modulate the servo pulse on the input voltage 24V,

use a filtered smithtrigger to get your pulse back,

use a DC block coil on both ends, so you can DC and pulse at the same time on one wire,

use RG58 cable it is cheap and easy to get.

Link to comment
Share on other sites

  • 2 weeks later...
I wonder if a servo would be the thing to use for panning a camera in my waterproof housing for underwater

use 100ft down the cable. Can it go 100ft over the cabe? Is the servo better to use and smother then a stepper motor?

I would like to be able to pan left and right up to 180 degrees from center. Have a manual mode and a auto pan mode.

Can I do it with servos and the right contoller curcuit. Is there software out there so I can make my own

sequences.. I would like to run it from a contol box, not a computer. The power would be 12 volts on the boat.

Thanks

Hello Videorov,

I am also working on a ROV. My camera is a Hitachi VK-S234. It has a built in 12x optical zoom. It is controlled by RS-232. You can control the Zoom, Iris, Focus, Shutter speed among other things. I am trying to find a way to hook up a Radio Controlled transmitter without the RF module (the wireless portion) to a microcontroller. That way I can control the motors and camera over wire since radio waves don't go far underwater. You can see a couple photos of the camera on the Yahoo ROV Group http://groups.yahoo.com/group/robotrov/ under Nemo1 in the photos section. If your not a member of the group check it out.

Regards,

Dennis

Link to comment
Share on other sites

They look like great cameras but are if I remember correctly 68 grams in weight or so, no RF deck, & cost quite a lot. Would be great on an airplane though if one had a RS232 uplink... Might take a co-pilot and a second transmitter & receiver for FPV but would be great for the UAV guys....

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...