transfering video through wireless

Projects General Guidance
1

I want to transfer composit video signal from a camera to display without wire between them.

I read many posts that says "it's impossible with arduino". Could be impossible with arduino but there are some devices doing this job:

it's basically transferring serial signal through wireless transmitter and receiving at other hand. I dont know is how much bandwidth required to this?

PS: I only need one way data transfer (from rear of the car to display around driver) within <3 meters (<10 feets)

If something this small ( http://www.ad-promotion-gift.com/uploads/img2/Car_Rear_View_Camera_(AC02SN)_1614956.jpg ) can create the signal why not something else can send it through transmitter?

Thanks.

2

why not something else can send it through transmitter? Thanks.

Here you go.

http://www.geeks.com/details.asp?invtid=CM-811T-BP&cat=VID

3

Sure, there are plenty of devices that can do this. They are either special hardware that only does video, and does not do general purpose programming, or they are running on a faster processor with more memory. It may be that if the Arduino was doing nothing but just reading the bits and sending them out without doing anything on the arduino side, they could do the transfer (maybe with careful programming, or maybe not).

Most people don't want to do just a transfer, they want to create video and display it, or do local processing. The Arduino was designed to be a small cheap microprocessor. It is fairly slow, and it doesn't have much memory. One frame of HD video (10807803 pixels) is 1,200 times the total read/write data memory in the Arduino (2kb for the Uno).

4

that's exactly what I need. But there will be other functions (besides transferring the video signal) and I need to build it myself.

I'll be overlaying driving information on video signal via arduino + video experimenter shield.

I need to know how this work and what's in it.. I hope someone can tell me, otherwise I'll buy one and look in it :slight_smile:

5

mtD:
that's exactly what I need. But there will be other functions (besides transferring the video signal) and I need to build it myself.

I'll be overlaying driving information on video signal via arduino + video experimenter shield.

I need to know how this work and what's in it.. I hope someone can tell me, otherwise I'll buy one and look in it :slight_smile:

I just got a Video Experimenter shield yesterday, but I'm probably going to be busy for a bit before trying it out. It looked like the creator of the site had various examples: Video Experimenter - nootropic design.

Rather than the combined camera + wifi at compgeeks, since you do want to overlay video, I would use a camera that doesn't do wireless, but just puts out an analog signal. Feed that into the Arduino video shield, specifying to allow the arduino to add its information. Then use one of the wireless devices that takes RCA input, and transmits it. Here is one that I have marked in ebay (there are a few sellers of these, though I suspect they may be made by one factory, and the others are just resellers): http://www.ebay.com/itm/261001656006?ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649

6

I found same item on amazon and ordered it: http://www.amazon.com/2-4G-Wireless-Transmitter-Receiver-Camera/dp/B006MQ9KK2/ref=sr_1_2?s=automotive&ie=UTF8&qid=1343345523&sr=1-2&keywords=2.4Ghz+Wireless+RCA+Video+Transmitter%26Receiver

I'll test it and let you know about result.. thanks for the advise..

7

How about this one? make for arduino ?
http://www.ebay.com/itm/NRF24L01-2-4GHz-Wireless-Audio-Video-Transmission-Module-for-Arduino-125-channel-/290767778583?pt=LH_DefaultDomain_0&hash=item43b31c3317

8

I dont know is how much bandwidth required to this?

Just to give you a rough idea of the information content of video, old-fashioned standard definition analogue video used a bandwidth of around 5.5MHz.