Hi,
I had to connect my arduino far from my computer: about 10-15 meters.
Some electronics stores say that usb 5 meters cable can repeat signal (without external 9v)
http://www.data-alliance.net/-strse-74/USB-2.0-Active-Repeater/Detail.bok
Do I need those types of cable or can I buy two simples A female/male cable adaptator of 5 meters each one ?
Thank you
Why don't you try with XBees? I'm not a fan of cables (and probably my brain not a fan of radio waves but anyway).
5m is maximum specified cable length for USB. You can use USB hubs as repeaters, maximum number of hubs to daisy-chain is 3 or 4, see USB spec for exact number. Anyway, you will need only 2 hubs to get 15m.
Cause it's more expensive ($20) that cable and I am not fan of radiowave for children.
So, I would like to buy cable to enable me to plug my arduino that will be outside my home.
And AWG24 wire cable too.
I f you know a shopping website that offers both those cables, I am interested.
Thank you
no more idea even on e shop best price ot import from france.
You probably won't find an active cable for less than the cost of a HUB.
An active cable cost $9.
http://www.data-alliance.net/-strse-74/USB-2.0-Active-Repeater/Detail.bok
A Hub cost more no ?
I have seen a man on the forum that talk about RJ45 convert extension:
so choices are:
1- USB activ extends cable (but it cost more often than usb hub )
2- USB Hub (about 15- 20$)
3- your solution :
Just tested with a USB > RJ45 > USB extender, 25 meters worked just fine.
Can you confirm that it is working with RJ45 at 20 meters and give me a link to a e-shop best price you usually buy ?
Thank you for all 
What about the Ethernet shield?... http://www.bizoner.com/arduino-duemilanove-wiznet-w5100-ethernet-shield-p-209.html?zenid=n1nddu8o8k0lfvc6d8dmfasrc2
Ethernet shield cost more than $20 and does it enable to upload sketch into arduino ?
I believed it enabled to communicate some information between PC arduino no ?
Do you have a prefered e shop that ship to FRANCE ?
Thank you
I don't think that there is a cheaper option.
Yes, with the Ethernet library you can have two ways communications, but I suggest you to investigate Ethernet projects before you go any further if that's suitable for you.
I think that place ships everywhere. Otherwise Google "Buy Arduino Ethernet Shield".
Actually I have a based solution with temperature sensors, ultrasonic and relay command in a box with my arduino.
My goal is to put this box outside my home.
So I need the more efficient and low cost way to continue uploading and evolve programm from within my home.
Do you think Usb Hub should less work than ethernet or not ?
Problem that I see is that Usb Hub provide 4 slot and each one has consumption of current.
If you confirm me that I wil not have pb, I buy it (15$ in france) and that'is
What do you think about activ usb cable (selft powered) ?
For such cases there is dealextreme:
http://www.dealextreme.com/details.dx/sku.45923
Will take a couple of weeks to arrive though.
Personally, I think is a bad idea to extend an USB cable outside of your house.
If something happens like humidity your computer is at risk.
Also, a RJ45 cable is less disruptive than 2 USB hubs.
Yes, your website seems cool but I don't need 100 meters extender of four usb ports.
I need only 15 meters max... It seems that constructors see large. Many ports and high distance.
Ideally I need 2 ports and 15 meters.... I am searching for that.
Do you confirm that putting hub with many ports (> 2) will not disturb addressing to Arduino Board
I am open to the RJ45 solution if it's low cost.
Maybe can I do
PC-->USB/RJ45 adaptator--->RJ45 wire---->RJ45/Usb B adaptator.
If it is more expensive, I will programm only on weather fine days avoiding humidity and hig level current problems.
No ?
You have to put an RJ45 cable between the two units as shown in the picture. which can be any length between 5 and 100 meters.
Or I can buy this http://www.dealextreme.com/details.dx/sku.42750
A simple powered usb hub. I put 2 usb cable of 5 meters and then I have my distance to upload my sketch no ?
You could buy a powered usb hub. I would buy that localy, maybe they even let you try it if it works. If not they let you return it.
I am in France so it has to work !
Nobody on this forum has already have this problem and test the same solution ?
I will recieve it in 14 days just before christmas, so I must be sure that it will work cause my arduino has to light up some exterior lights.