7th April 2007

Simple console adapter for La Fonera

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posted in Embedded |

You can use code injection and/or fake Radius server to gain root (SSH) access to La Fornera. But there is a much simple way : connecte your computer to the console port inside the Wifi router :

(sorry text in french on this picture, no time to translate)

I don't use any level adapter like max232 or max3232, just NPN transistors :

Pinout of console connector inside La Fonera is :

(too bigs capacitors here)
. . . . r
. w o . b
(SDRAM chip here)
  • r : red : Vcc 3.3 Volts
  • b : bleu : Ground
  • w : white : RX
  • o : orange : TX

First (ugly) circuit :

New circuit :

With connectors :

For USB connexion just use a USB/serial adapter. Next step : play with GPIO ! Yeah !

More information and other way to connect console :

This entry was posted on Saturday, April 7th, 2007 at 12:07 pm and is filed under Embedded. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

There are currently 12 responses to “Simple console adapter for La Fonera”

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  1. 1 On May 29th, 2007, jeremiah johnson said:

    It’s okay. Even us stupid Americans know what the picture says. I say that because yes, we are stupid, and yes, some of us are painfully aware of it.

  2. 2 On May 31st, 2007, Lefinnois said:

    It’s not a question of stupidity, smartness, knowledge or brain size. It’s a question of courtesy. French text on english blog = “sorry”.

  3. 3 On August 19th, 2007, volltroll.de said:

    This people who doesn’t understand the Picture with the french text has not enough knowledge to "hack the fonera" ;).

  4. 4 On October 20th, 2007, marvins said:

    Excuse me,
    Could you take a picture which back of the “ttl to rs232 circuit”?
    I am really stupid also … thanks :)

  5. 5 On November 4th, 2007, Lefinnois said:

    You have more pictures on my french post.

  6. 6 On December 16th, 2007, Toxxic said:

    Bonjour

    can we use some of your Pictures and link to your Site on our german Serial Access to the Fonera Howto? Your Solutions with Transistors is very smart and i want to intergrate it into this Site: http://wiki.freifunk-hannover.de/FoneraTTY

    Best Regards

    Toxxic

  7. 7 On December 16th, 2007, Lefinnois said:

    Yes, you can.

  8. 8 On May 28th, 2008, Cientista said:

    I made this circuit, and turn on the hyperterminal, turn on the fonera, and it gives NO response on hyperterminal, nothing….

    Dont appears nothing…

    What may be ?

  9. 9 On February 17th, 2009, izico said:

    Hi,

    I’ve made the circuit too, no any response with serial settings as 9600, 8N1 for La Fonera+.

    I have no multimeter now, I’ll goto a friend’s house to use his multimeter to check what’s the problem.

    Any advice on what may be the problem?

  10. 10 On June 11th, 2009, Sur said:

    I’m sorry to say that i have had no success with this using a fon 2100.
    Has any one? I’ve yet to see a success story with this setup hear on on the dd-wrt sight.

    I wish it would work it’s cheep fast and ez.

  11. 11 On June 15th, 2009, Sur said:

    Note: i am also the Sur from “On June 11th, 2009,”

    excuse my previous comment i have just recently got it to work
    thanks to who ever made this i don’t see much talk about this and i don’t know why it’s cheep and fast and the local radio shack has all of the parts. 2x under 10$usd

  12. 12 On September 11th, 2009, Martin said:

    hi,
    is it possible to change the serial speed to another baud rate than 9600 ?
    thx
    MArtin