Arduino + Wifi Fonera

Forum 2005-2010 (read only) Hardware Troubleshooting
1

Hi There,

I have a problem I don't understand...

I connected a Fonera to my Arduino board through the serial COM port - RX/TX.

I connected the Arduino board to my computer -through USB. The problem is that I can't really make my computer or Arduino talk to the Fonera.

Did anybody try to do the same?

Thanks,
Franck

2

I don't fully understand your setup BUT if you want to use your HardWare UART (RX/TX pins on Arduino) you cannot use them for USB communication at the same time.

hope this helps

C

3

Thanks for your reply; here's what I want to do in details:

  • I reflashed a Fonera with DD-WRT to set it up as a Wifi Client. It works; when I connect the Fonera to my computer through ethernet I'm able to surf the web. The Fonera also has an embedded serial port.
  • For my project, I want the fonera to send data to the serial port of the Fonera to send commands to upload data on the internet.
  • I have a USB Arduino board.

So to test, I want to sort of simulate the program I'll embed in the Arduino. I connected to Fonera to the RX/TX + GND of the Arduino and I connected my Mac to the USB of the Arduino.

What I expect:

  • Get on my Mac (through the Arduino SDK, or screen) the output of the Fonera and a login prompt.
  • Send data with the keyboard of my Mac to the Fonera through the Arduino.

If it doesn't work, do you have any idea? I should use "other" input/outputs? In such a case do you have a program to send data from the USB to the "other" RX and get data from the "other" TX sent to the USB?

Thanks a lot,

F.

4

something is there:

http://www.geocities.jp/arduino_diecimila/wifi/index_en.html

but as I wrote on my previous post, you can use the embedded UART OR for USB connection OR for connection to the fonera.

I think also that fonera serial port needs a quite high bitrate (115200
?) , so I think you cannot use a SW serial port.

hope this helps

5

Thanks, yes I've read that article; this where I discovered the Fonera :-o) The speed of the Fonera might be changed to 9600. I don't know how the guy tested his solution...

When you talk about SW serial port, you speak about the SoftwareSerial Library? The speed for this lib is 9600 bds.

F.

6

When you talk about SW serial port, you speak about the SoftwareSerial Library? The speed for this lib is 9600 bds.

yes, I talk about the SoftwareSerial lib (or its evolutions)
My suggestion - but it's just an idea - would be to use the HW uart for the fonera connection, and the SW uart for PC side communication, with a TTL-USB adapter (like FTDI's cables with embedded FT232)

again, hope this helps

C

7

Thanks for your reply; I might try this...
Franck