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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.


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Everything posted by Andrew

  1. Here's another site I found: http://www.servo.com/
  2. I think FMA just designs the co-pilot and farms out the manufacturing to a third party. I recently ordered a co-pilot and delays with their manufacturer was the reason I was given why the shipment was delayed. I don't know who manufactures that part, but... You might try here: http://www.photonicdetectors.com/
  3. I have a delay of 5 seconds in my code before any of the lines I posted are run. I'll try this suggestion and let you know what happens. I failed to show the line of code where LCD is defined along witht he 5 second delay in my above post. the LCD is defined as 0x50 which is the I2C address of the device. The code I'm using is located in the samples folder after installing PICC Lite. I'm attaching the documentation they included with the sample code. I have customized their example code to use the pins I wanted it to. I'll look through the sample code to make sure
  4. I'm trying to write to a Matrix Orbital LK162-12 LCD screen from a PIC 16F628. This is my first electronics project, so hopefully, I'm just doing something silly. I first tested the LCD from the computer and that all worked ok through the RS232 serial port. The problem is when I try to communicate from the PIC to the LCD over I2C. I'm using the PICC Lite compiler and their sample I2C code. SDA is set up on Pin RA0 and SCL is set up on RA1. I'm not sure I am setting up the PULL-UP resistors correctly. I have a 10K resistor between VCC and RA0 and a second 10K resistor between VCC a
  5. How are you getting the video from the camera into the PC? If it's a digital video camera and you're using the USB port instead of firewire, you'll get loss of quality. If that's not your issue, look into a program called virtualdub. I sometimes use it to clean up my home videos as a preprocessor. And it's free to boot! http://www.virtualdub.org/
  6. I haven't received my programmer yet, but I plan on learning with PICC Lite. The price is very good. FREE! http://www.htsoft.com/products/piclite/
  7. Why did they decide to do a test with GPS? Are we going to launch GPS satellites on Mars just so they can fly their UAV? They should be working on non-gps navigation. I'm assuming they're using a standard combustion engine. How would that function in a lower-oxygen environment like mars? What about the air density of Mars? An aircraft that can fly on earth might not even fly on Mars. I once heard that if you threw a curveball on mars, it would curve the opposite way on Earth. Likely some large implication for any aircraft on Mars. Their experiments look largely like been there done
  8. CCPM helicopter, and custom transmitter mixing support and optional Vertical sensor to speed up ground calibration. It also has embeded the co-pilot controller inside its own FM receiver. You can no longer use your own receiver with it.
  9. Here is a link to the manual for the speedy radar kit. Any ideas on if it's possible to adapt from speed measurements to distance? It runs at 2.6Ghz. http://www.ramseyelectronics.com/downloads...manuals/SG7.pdf
  10. $8,241.27 ouch. That's not including the taxes and required export license. Might be a cool project to try to make one on your own, but unfortunately I lack the technical savvy that would require.
  11. I've sent a price inquiry to the Roke folks. I'll let everyone know how much $$$ the unit costs when I find out.
  12. My guess is that it's definitely expensive. They make you request a price quote and don't have any pricing info on their website. Do you think it's possible to make a device to measure altitude using radar? Maybe adapt a radar gun sensor from measuring doppler shift(speed) to measuring distance? Maybe hack one of these devices? http://www.hobbytron.net/r-sg7.html
  13. One of the difficulties with telemetry or altitude hold for a UAV(especially helicopter) is accurate altitude readings. Has anyone experimented with using RADAR altitude detection or is this something that is beyond the hobbyist? The Mk IV unit in this link is accurate to 12.5cm. http://www.roke.co.uk/aviation/miniature_r...r_altimeter.asp Cool stuff no?
  14. I won't be purchasing anything at least until George Bush gives me some of my money back in the next month or two. I'll look you up then to see if you've still got them lying idle.
  15. I'm was leaning toward a Motorola MPX 4115 pressure sensor but I'm very open to recommendations. I'm also looking at a BOB3 board for overlay but again I'm open to any recommendations. I want a relative altitude and not an absolute altitude. Can this be done easier with GPS?
  16. I'd like to build a simple altimeter video overlay system for my aerial photography helicopter mount. I'm not overly experienced in electronics although I can build circuits. My soldering skills are good since I grew up with a father who is an EE. My background is computer science, so I have much experience programming in Java and C/C++. I took and passed an assembler class in college although I haven't worked with it since. I think I could probably make it work using a Javelin Stamp although I don't particularly care for the price of this unit. Is it worth my time to learn how to use
  17. Thanks for the reply. I guess I'll just stick to my GPP for now.
  18. What would be needed to adapt a waveguide tin can antenna like this for video downlink? Has anyone tried this type of antenna for wireless video? http://www.turnpoint.net/wireless/cantennahowto.html
  19. What is a good length for the coax cable split location to the connector? Has anyone experimented with this length and found a good value for it?
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