Hi Swathy, Wire the LED component to the RF230LayerP and switch LEDS in the transmit function depending on the power level. However, I am absolutely sure that the changing the power level works either with setting the default or using the TransmitPower interface.
Miklos On Wed, Apr 22, 2009 at 7:28 AM, swathy M <[email protected]> wrote: > hello sir !! > > i am doing an work in measuring the energy level of iris motes during the > transmission of data. > > i want to mesure the energy at different TX_PWR level , i first tried to > add a PFlag in the make file to change the power level and other method is > is changing the the Tx_pwr in the HplRF230.h file . Program is getting > executed but the i am not able to check if the transmission power has been > changed. > > so i connected an oscilloscope to measure the voltage reading of the motes > but for different power level i changed , its showing the voltage level. > > since p=v*i if i changge power, it must show some voltage variation , but i > am not getting any. > > please tell how to cross check if the power level i am changing in program > is getting effective or not?? > how to verify this. > > > --- On Tue, 21/4/09, Miklos Maroti <[email protected]> wrote: > > From: Miklos Maroti <[email protected]> > Subject: Re: [Tinyos-help] TX_PWR changing > To: "swathy M" <[email protected]> > Cc: [email protected] > Date: Tuesday, 21 April, 2009, 11:52 AM > > Hi Swathy, > > Use the PacketTransmitPower interface provided by the > RF230ActiveMessageC to set the TX power on a per packet basis. > > Miklos > > On Tue, Apr 21, 2009 at 1:12 PM, swathy M <[email protected]> wrote: >> hi all!! >> i want to know how to change the (TX_PWR) transmit power level in the >> PHY_TX_PWR registry. >> i want to know the difference in the transmission of iris motes for the >> sane >> program. >> >> swathy >> >> ________________________________ >> Now surf faster and smarter ! Check out the new Firefox 3 - Yahoo! Edition >> * >> Click here! >> _______________________________________________ >> Tinyos-help mailing list >> [email protected] >> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >> > > ________________________________ > Now surf faster and smarter ! Check out the new Firefox 3 - Yahoo! Edition * > Click here! _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
