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An Arduino compatible device based on the Arduino mini. This is as small as it can get with the wireless module. You can program on it just with a USB extension board. It is the best choice when your corresponding project space is limited.[/vc_column_text][vc_tour][vc_tab title=”Part list” tab_id=”1398150928-1-44″][vc_column_text]

1. 1  x  Redback 
2. 1  x  FT232RL USB transfer to TTL module
3. 1  x  Mini USB cable

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Redback can be directly installed in the USB extension board, their feet are corresponding to each other
Connect the DTR on  Redback to  DTR on USB extension board 
Then connect the Redback with the computer through the Mini USB cable.

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Download the corresponding file library :Redback

Put the downloaded library to Arduino/libraries directory.

Open FILE->Example->Redback->SimpleServer in the Arduino IDE

Then modify the app-config.h under the  Redback file.

For different programs useing different header files, we use the corresponding header files throng the comments or open the related macro definitions  in the app-config.h. We modify the app-config.h as follows in this post.

Then we can modify the code according to our router information

The place needed to modify

From the top to the bottom of according to the 6 red boxes in turn:
The Redback IP address
The connected gateway router
Subnet mask
The connected wireless network name of the Redback.
Wireless network encryption method
The last is a wireless network password
This code configured according to my own router information .

At last, you can see the compiled code result.

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The WIFIGreen on the board will light up after the code unload to the IDE. Then input    the IP address 192.168.7.120( The IP address is modified according the different network segment) set for the redback in the code in the browser (ensure that the computer and redback are  on the same network segment). The server will print out the helloworld

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