RF transmitter

and the extension of image is JPG

this code can apply for image JPG

So, you only have the TX channel. The problem is without RX channel you can't confirm information reception. Here are some suggestions:

* the transitions are likely to fail, so for a large amount of data, like image bytes, you can loose one byte and corrupt the data on the receiver, there are three ways, I can think of, to solve this:

1 use another module like this, but inverted, so you can have an RX channel and send confirmation messages to the arduino

2 send along with byte information the byte location and CRC, there are thousands of codes how to implement on the internet, so the receiver can check the info and corrected it in some cases.

3 send the byte information multiple times, along with byte offset, so you reduce the chances of corrupted data

The code would work for any kind of image extension, as you are transmitting the raw data from the file. But the receiver must know the extension to, as bmp and jpg have different compactation methods.

You can use the SD library from arduino to read the raw data from the file, using read():

http://arduino.cc/en/Reference/SD

Cheers.

So, you only have the TX channel. The problem is without RX channel you can't confirm information reception. Here are some suggestions:

* the transitions are likely to fail, so for a large amount of data, like image bytes, you can loose one byte and corrupt the data on the receiver, there are three ways, I can think of, to solve this:

1 use another module like this, but inverted, so you can have an RX channel and send confirmation messages to the arduino

2 send along with byte information the byte location and CRC, there are thousands of codes how to implement on the internet, so the receiver can check the info and corrected it in some cases.

3 send the byte information multiple times, along with byte offset, so you reduce the chances of corrupted data

The code would work for any kind of image extension, as you are transmitting the raw data from the file. But the receiver must know the extension to, as bmp and jpg have different compactation methods.

You can use the SD library from arduino to read the raw data from the file, using read():

http://arduino.cc/en/Reference/SD

Cheers.

I agree with otavioborges

RF 434 Mhz

These are pretty cheap RF based transmitter and receiver. I bought a pair of them from ebay. They are cheap but pretty hard to get them working. Moreover they don't seem to work inside home. To do a two way communication, we will need 2 such pairs (a total of 4!).

- Xbee - Part 1 - What is the need - Freemindscafe

Remember, you get what you paid for. That is why they are so inexpensive.

Clem