Hi, I don't understand what are the "entities" you mention. To get RSSI on CC2420- based nodes, you can call the CC2420Packet.getRssi function. The offset to transform the raw value to dBm should be esperimentally determined, but it is approximately -45. Thus, if getRssi returns -10, the RF input power is approximtely -10-45 = -55 dBm. Please refer to CC2420 datasheet for more details.
Regards, Giuseppe On Wednesday 18 May 2011 10:26:22 Lyubomir Ivanov wrote: > Does someone know how to convert the raw values of the read rssi values > into dBms. I know that if you want get the rssi with get.rssi it is > supposed to extract 45 entities, but I don't know how entities must be > substract when using ReadRssi! -- Giuseppe Cardone, Ph.D. Student DEIS-LIA - University of Bologna E-mail: [email protected] Web: http://lia.deis.unibo.it/Staff/GiuseppeCardone/ LA RICERCA C’È E SI VEDE: 5 per mille all'Università di Bologna - C.F.: 80007010376 http://www.unibo.it/Vademecum5permille.htm Questa informativa è inserita in automatico dal sistema al fine esclusivo della realizzazione dei fini istituzionali dell’ente. _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
