[Tinyos-help] RSSI_VAL

[Andres Aberasturi]

Hi,

I have an application that copies the "msg->strength" and saving it in an 
uint8_t data:

uint8_t msg->data[4]=msg->strength

then with my own xlisten, I visualize the "strength".

Thanks for your attention,

Andrés


>From: "Hui KANG" <huk at cs.okstate.edu>
>To: benytokmelas at hotmail.com
>Subject: Re: [Tinyos-help] RSSI_VAL
>Date: Tue, 13 Jun 2006 09:52:01 -0500 (CDT)
>
>
>Which tool did you use to see the value, listen or others?
>Thanks.
>
>Hui Kang
>
>On 6/13/2006, "Andres Aberasturi" <benytokmelas at hotmail.com> wrote:
>
> >Hi all,
> >
> >I am working with the localization of micaz motes (with the 1.1.7version 
>of
> >TinyOS), and for it, I need to know the RSSI value messured.
> >
> >At this moment, I am able to read the value, and see that when I separate
> >the motes, this value dicreases. But which are the unit of this value ? 
>How
> >can I do the conversion?
> >
> >The datasheet of CC2420 gives me this formula to obtain the power in dBm:
> >
> >P=RSSI_VAL+RSSI_OFFSET
> >
> >RSSI_OFFSET is -45dBm, so, RSSI_VAL must be in dB if I want to obtain the
> >power in dBm. Can anyone explain me how can I convert my data read to
> >RSSI_VAL in dB?
> >
> >Thank you in advance,
> >
> >Andrés
> >
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