Hi, You are most welcome, sadly I only have some experience with IRIS mote, so I am not able to help you with mica2,
Regards, Hamid Rafiei Karkvandi On Wed, May 23, 2012 at 1:47 PM, Li, Haixia-OSU Stillwater < [email protected]> wrote: > Hello Hamid, > > Thank you very much. Do you know what should I do for getting RSSI of > mica2? The RssiBase doesn't support CC1000 in fact. If I want to read RSSI > of mica2, what component can I use? > > Regards, > Haixai Li > ------------------------------ > *From:* Hamid Rafiei Karkvandi [[email protected]] > *Sent:* Wednesday, May 23, 2012 12:13 PM > *To:* Li, Haixia-OSU Stillwater > *Cc:* wasif masood; [email protected] > > *Subject:* Re: [Tinyos-help] RSSI with IRIS > > Hi, > > That can be right, just make sure you are choosing the right packet field > and the right 2 bytes, RSSI VAL can only change between 0 to 27 or in other > words, the indicator doesn't show the RF input power of higher than -10 dBm > or lower than -91 dBm, > > > > Regards, > > > Hamid Rafiei Karkvandi > > > > > > On Wed, May 23, 2012 at 11:00 AM, Li, Haixia-OSU Stillwater < > [email protected]> wrote: > >> Hello Wasif, >> >> Thanks for your reply. >> >> I want to directly use the data of Hex message. >> >> For example, there is a message. >> >> 7E 45 00 FF FF 00 01 02 3F 0A 00 1B 16 48 7E >> >> >> I think 00 1B is the RSSI. 0X 1B=27 >> >> can I get the received power (dBm) = -91dBm+3*(27-1)=-13 dBm ? Is this >> right? >> >> Thanks again. >> >> Regards, >> Haixia >> ------------------------------ >> *From:* wasif masood [[email protected]] >> *Sent:* Wednesday, May 23, 2012 11:39 AM >> *To:* Li, Haixia-OSU Stillwater >> *Cc:* Hamid Rafiei Karkvandi; [email protected] >> >> *Subject:* Re: [Tinyos-help] RSSI with IRIS >> >> Dear Li, >> >> I guess you can also use MsgReader and specify your RssiMsg file as >> generated by the MIG tool, or else you can simply lookup for the last 2 >> bytes of the Hex message. For details about the Hex message please refer to >> the PC to Mote communication tutorial on tinyos Documentation. >> >> BR, >> Wasif >> >> On Wed, May 23, 2012 at 5:19 PM, Li, Haixia-OSU Stillwater < >> [email protected]> wrote: >> >>> Hello Hamid, >>> >>> Thank you for your reply. I followed the RSSI demo tutorial. However, I >>> cannot use the java program, and I cannot figure out why. So, I directly >>> get the packets from the serial port. Now I have the packets, I want to get >>> the RSSI. How should I change the data in the packet to the RSSI? And is >>> the data given by the RSSI demo java the received power dBm ? >>> >>> Appreciated. >>> >>> Regards, >>> Haixia Li >>> ------------------------------ >>> *From:* Hamid Rafiei Karkvandi [[email protected]] >>> *Sent:* Tuesday, May 22, 2012 4:54 PM >>> *To:* Li, Haixia-OSU Stillwater >>> *Cc:* [email protected] >>> *Subject:* Re: [Tinyos-help] RSSI with IRIS >>> >>> Hi, >>> >>> You may follow the steps in the RSSI demo tutorial, it is totally >>> straightforward, RSSI Base Value is given in the datasheet to be -91dBm the >>> lowest that IRIS mote can detect, >>> >>> >>> Regards, >>> >>> >>> Hamid Rafiei Karkvandi >>> >>> >>> >>> >>> >>> On Tue, May 22, 2012 at 3:33 PM, Li, Haixia-OSU Stillwater < >>> [email protected]> wrote: >>> >>>> Hello all, >>>> >>>> I want to get RSSI of IRIS. I used RssiBase, but I didn't use the >>>> RssiDemo.java. I directly received the packet transmitted by RSSI. For >>>> example, a packet is : >>>> >>>> >>>> 7E 45 00 FF FF 00 01 02 3F 0A 00 1B 16 48 7E >>>> >>>> I think the 00 1B is the RSSI. Can anyone tell me how to change this >>>> value to input power? >>>> >>>> The RF230 datasheet(P52) says >>>> >>>> PRF=RSSI_BASE_VAL+3*(RSSI-1) , and the RSSI value is represented in the >>>> lowest five bits. >>>> >>>> should I use the equation and only use the lowest five bits of 00 1B? >>>> and what is the RSSI_BASE_VAL? >>>> >>>> Thanks. >>>> Haixia >>>> >>>> >>>> _______________________________________________ >>>> Tinyos-help mailing list >>>> [email protected] >>>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >>>> >>> >>> >>> _______________________________________________ >>> Tinyos-help mailing list >>> [email protected] >>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >>> >> >> >> >> -- >> Wasif Masood >> >> >
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