Hello,
i ve succeded in reducing power. I ve got a precision to ask : what s the
meaning of the value 1. Which unit does it correpond ?
From: Urs Hunkeler <[EMAIL PROTECTED]>
To: vazoumana fofana <[EMAIL PROTECTED]>,
[email protected]
Subject: Re: [Tinyos-help] [reduce power]
Date: Fri, 13 Jul 2007 16:13:47 +0200
Hi,
This is what I previously wrote about reducing TX power:
In Tinyos 2 with a platform with the cc2420 (such as MicaZ and the
Tmotes), you can use either a flag in the makefile:
CFLAGS += "-DCC2420_DEF_RFPOWER=1"
or you can dynamically change the tx power at runtime (individually for
every packet) with something like (wire in the CC2420PacketC module):
call CC2420Packet.setPower(&rpacket, 1);
You'll have to issue that call for every packet prior to sending it.
Reducing the TX power to its minimum I get a maximum transmission range
of roughly 3 meters under ideal conditions.
Cheers,
Urs
vazoumana fofana schrieb:
> Hello
> *
> I ve seen mails exchanged about this field but i lost it.
> Does somebpdy how i can reduce power transmission on telos mote under
> tinyos 2.x.
> I want to experiment multi hop network so i need to reduce trhe range of
> each mote.
>
> Thanks for any help.
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