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Wireless Ethernet? — Parallax Forums

Wireless Ethernet?

CIOCIO Posts: 3
edited 2007-09-08 22:35 in BASIC Stamp
I apologize in advance if this question had already been answered.· I am currently using an eb500·with a "mobile" bs2p40 but am having extremely limited range.· I am assuming its due to the strength of the 802.11 signal in the location I'm working in.· So the question becomes, is there a wireless ethernet solution that I can "easily" interface with a basic stamp?· And if not, does anyone have another suggestion that may give more than a 30 foot range indoors around walls, corners, etc?

-Sam

Comments

  • JonathanJonathan Posts: 1,023
    edited 2007-09-08 14:32
    Sam,

    Something is not right if you are getting only 30' feet or so. I use the eb500 on several projects, and I get more like 300'. My situation may be a little different. Firstly, I have no interference, I live way in the sticks. I use the eb500 on my bots and then have·a laptop with a LinkSys USBBT100 adapter.

    Give us some more details, but you shoulf be doing better than 30'.

    Jonathan

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    www.madlabs.info - Home of the Hydrogen Fuel Cell Robot
  • CIOCIO Posts: 3
    edited 2007-09-08 15:03
    Johnathan,

    I live on the edge of·a small city.· I can see three wireless networks from my house, including my own.· I have two wireless access points, one in the house and one in the garage.· All of the equipment is Netgear.· I have turned off bluetooth on my cell phone.· I have read that the xbox 360 wireless controllers can interfere, so I keep the xbox off as well.· My home phones are in the 5.8ghz band, so I assume that they will not conflict.

    I am using a D-Link DBT-120 USB 2.0 adapter in one of two laptops.· Initially I believed that it was the laptop, so I tried another.· Basically when the bot enters the room with the wireless access point and two laptops, it loses communication unless the DBT-120 enabled laptop is within 20 feet.· Otherwise the bot gets about 30 feet in my house before losing connectivity.· I have followed the bot through the house carrying the laptop and been able to navigate the entire house.

    I have the eb500 mounted in a flat plane with the rest of my logic boards.· It is somewhat isolated in the front-right section of the bot.· It is at least 4 inches away from any relays or motors.· How much affect does alignment/placement have?

    When I started this project two years ago I couldn't find a good 802.11 solution.· I opted for bluetooth as it seemed the next best choice.· If an 802.11 solution exists now it would be an easy conversion and slightly more advantageous to my project.

    Thanks,
    Sam

    ·
  • JonathanJonathan Posts: 1,023
    edited 2007-09-08 15:45
    Sam,

    Sounds like you may be screwed. Have you tried taking the system to a remote location with no interference just to make sure that is the problem? One of my bot's gets used a school where there is wifi, and we have had no problems. Sounds like you are in a very noisy environment

    I haven't experimented much with placement. Mine is mounted vertically, as it would be on a BOE using the APPMOD header. This does place the antenna at the top.

    Jonathan

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    www.madlabs.info - Home of the Hydrogen Fuel Cell Robot
  • CIOCIO Posts: 3
    edited 2007-09-08 16:03
    Johnathan,

    I think I am out of luck on this project with the eb500.· Which brings me back to·wondering if there is a wireless ethernet solution.



    -Sam
  • D FaustD Faust Posts: 608
    edited 2007-09-08 22:35
    ZigBee? It uses a radio signal but might be worth checking.

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