Cheapest way to wirelessly transmit video
I asked a similar question a few days ago, but I think I was unclear about my requirements, and they have changed a little since then too.
Here's my proposed setup:
I have a small robot which travels around my room (max 10 ft away from origin). The robot has a small camera fitted into it, and a way to transmit that video to me wirelessly. I am retrieving the live video feed from it, and based on what I see on the screen, I give it further instructions.
So essentially, I need a camera -> transmitter -> receiver setup for a video signal. I would appreciate recommendations for those three components, and what the cheapest way I can achieve that setup is. I am having difficulty finding this info online, perhaps because I don't know what the keywords I should be searching are.
My main requirement is that it has to be cheap (EDIT: in the tens of dollars). I don't care too much about the video quality, frequency, or range (as long as it is roughly 10 feet or more).
Please let me know if more details are required.