Hello, It would be nice if you could help out.
I have editted the source code for XMDA300M.nc. There is a part where "data" variable is used to record down the output voltage produced by the sensors. I am using a LM35CZ temperature sensor, which produce 10mV of voltage for each Centrigade(celcius). Therefore, for 30 Celcius, reading is 0.3 in MoteView (10mV * 30). However, when i want to compare the reading in the coding, it seens that when i want to compare the value between the output voltage, it differs. reading in MoteView = 0.27 threshold value = data < 320 (which i assume is in mV). if output of sensor <320, timer_rate =1 secs, >320, timer_rate = 5secs. In this case, when output voltage is 0.27, the timer_rate is 1secs. My question here is, what does the "data" variable represents? Is there any conversion formula for it? ========================================================= ******************************************************************************************* event result_t Sample.dataReady(uint8_t channel,uint8_t channelType,uint16_t data) { switch (channelType) { case ANALOG: switch (channel) { // MSG 1 : first part of analog channels (0-6) case 0: tmppack=(XDataMsg *)packet.data; tmppack->xData.datap6.adc0 =data ; atomic {msg_status|=0x01;} break; case 1: tmppack=(XDataMsg *)packet.data; tmppack->xData.datap6.adc1 =data ; atomic {msg_status|=0x02;} break; case 2: tmppack=(XDataMsg *)packet.data; tmppack->xData.datap6.adc2 =data ; if(data>320) timer_rate = 1000; //2secs call Timer.stop(); call Timer.start(TIMER_REPEAT, timer_rate); if(data<320) timer_rate = 5000; //2secs call Timer.stop(); call Timer.start(TIMER_REPEAT, timer_rate); atomic {msg_status|=0x04;} break; default: break; } // case ANALOG (channel) break; _______________________________________________ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help