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Periodic RSSI measurements to off-site database, how?

Discussion in 'Tomato Firmware' started by ElmValley, May 7, 2008.

  1. ElmValley

    ElmValley Addicted to LI Member

    Hi, gang,

    I am running Tomato on two WRT54GL routers, linked using WDS. I would like to measure RSSI, noise level, link up/down events and similar to an off-site database. I would like hints on how to accomplish this. I have a few questions:

    1. I have tried to measure RSSI and noise, but get inconsistent results. On a good day, "wl rssi <MAC address of peer node>" and "wl noise" works. Do I have to do anything special in order to have it work all the time?

    2. I have not done any web programming for several years, so the web page for "Wireless survey" is quite incomprehensible for me. There are notes about modern stuff like Ajax. I would like to know how the RSSI and noise figures travel from the WLAN driver, through (?) the web server to the browser. Anyone who knows? Does an update of the web page result in a "wl rssi?"? How?

    3. I want to send this data on a regular basis (15 min or 1 hour) to an off-site database. I guess sh and awk are the available scripting languages, right? (I had hope of installing openwrt's lua (just to fiddle with the new language), but I realize that it will (probably) not work.)

    For seding data, I miss "wput". I think about ftpput, or a long wget URL (like "wget http://a.b.com/measure?rssi=-76&noise=-96"). Any ofher ideas?


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