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About steveh

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    RC-Cam Visitor
  1. That's the stuff I was hoping to find. The original intent was always to bring the video feed through the umbillical. We actually have a 100ft length of professional ROV umbillical. (neutrally bouyant, actually pretty high tech) The pros use thousands of feet of unbroken cable. If it gets cut near the end, (the last couple hundred feet) they will cut it and throw it away. We got them to send us a "scrap" This cable is video ready, and the plan is to use as few wires as necessary to drive the ballast tanks, the drive motors, and the camera pan/tilt. I like the direct parallel port drive setup. That or something like this http://www.rentron.com/PICX5.htm (found it today) We may have to write some custom software to allow for the ease of control that I would like to have. I would like to either click on the video window and it pans/tilts to center on that spot, or sliders on the bottom and side so that, when you slide them, the servo moves the camera to point that direction. Even better might be a capability to click and drag on the video feed to be able to track a fish or other subject across the screen. I think I have found enough information to get me started. Thanks guys! Steve
  2. I appreciate the replies, not exactly what I was hoping for. We have to have an umbillical (cable) to control the motors on the ROV anyway. We will probably be at least 20 feet deep in salt water. I was hoping there was an easy way to fool the servos so that we can use direct wired switches or something. The cost to purchase the transmitter and receiver just for camera control is prohibitive for a donated/volunteer project. Does anyone have detailed technical specifications on the signals that drive the servos? I am an electronics tech and can probably come up with an inexpensive circuit that may work. I just need to know the critical parameters that I need to simulate. What do you view your video on? Do you feed it into a computer? Or do you use a TV out in the field? If a computer, what kind of software do you use? Thanks! Steve
  3. I love the elegance of the Pan-Cam. My question concerns going the other direction. Underwater! I have been tinkering with making a pan-tilt camera mount/housing for a middle school so they would have an underwater camera for science fair projects. In case you don't know, you can't transmit RF underwater. With that serious handicap, my question is: Has anyone built something that I can use to transmit the signals to servos over a wire? I'm open to suggestions on what to use for the control sticks too. I would assume a potentiometer with the wiper on a lever. Maybe a video game controller?! All signals would be transmitted down a single umbillical. This would include the control for the drive motors, ballast tank controls, video, and the pan/tilt signals. The other question I have, concerns software. Does anyone have ideas about software that I could use to send the signals from a laptop and view the video on in the same application? That would be the optimum software, if I have to have a small window in front of the live video feed, to control the servos, I guess I could cope.
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