Let's Make Robots!

Video transmission

Hi everyone,

I'm quite new in all of this, but i want to build a robot able to transmit video, and possibly sound. I've got a common webcam and I want to make it wire less, but I don't know how to do it.

I would apreciate any help from you lot.


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I've been thinking about this, and I think that the best option (cheap and "good" in size) is to buy a black and white security camera, plugit to a reciver with a current supply and thats it. I think its the best option because you avoid the fuss of having to convert the USB to a analogue plug.

A very good idea too, posted by BaseOverApex, is to take away the dispensable parts of the emiter, such as the audio transmiter if you don't want audi, of course!!

Nope my solution has audio and no parts "taken away". Just disassembled to reduce the physical size. Oh, any camera's colour, too! Definitely skip the USB unless you want to have a laptop on your robot.

Well, the fact is that money is also important. I think, that if I managed to turn the USB of the webcam to a video conector, and had a strong enough electric supply (best batteries), I could manage to make the camera transmit with the device I introduced on my last post.

Anyway, this type of devices only reach to about 60 meters, but I think its enough, most remote controls dont reach very far either.

How about something like this, fairly cheap, includes camera, transmitter and receiver. In fact, might get me one.



 My thoughts excactly..

The road from the USB plug of a webcam to a analog video output is a pretty complex one. In fact, if you manage to make one cheap, I would suggest you manufacture it and go into bussiness, because a lot of people would buy it.


/ vzz-clck-"Maneuver"

If your issue is only size, not price. Maybe you could try hooking up your cam to a palmtop computer. Many of these have wifi and bluetooth..


/ vzz-clck-"Maneuver"

Thanks for the info. Anyway, I was thinking in a much smaller robot, I've thought about using a similar system to the one audio and video transmiters for home use.

Home audio and video transmiter


If anyone knows how to "reproduce" this, please tell us and give instructions for the construction.

Thanks all.

Well, to tell the truth, composite video cameras are the same price as webcams. Sure you need to buy a transmitter, but you can buy a transmitter receiver pair for less than $40.

I use a disassembled 2.4GHz video sender unit. It's great because the transmitter is also an IR receiver and the receiver is an IR transmitter, so I could send IR to the bot and receive video back.

Hi cpu_manu,

I have 2 common usb webcams, and I wanted the same thing. I wanted it to produce a wireless video feed and I'm working on ranging with stereopsis. What worked for me was to use a regular computer for my robot. The computer has a standard wireless network card. Here are some pictures:

Loki's head


Realtime wireless video processing - viewers are on applets in a browser


 Loki's blog


my robots
my garden

This looks very cool and interesting, GroG!! :)