If you are using the same hardware/software and getting 0 readings for only some of the motes you may have hardware issues. Make sure the sensor boards are securely attached to the motes, and maybe try switching some around to see if the problem follows.
The "good" values you get will vary some, maybe the bottom couple of bits. One problem with the temp sensor is that it gets heat from the electronics and might not indicate the real air temp. Also they are anything but calibrated so values may vary between devices somewhat dramatically... MS Gary Lee wrote: > Hi, > > I use T2/Micaz/MTS300 to test the temperature in an outdoor environment. > > I revise and install MultihopOscilloscope on one micaz/mts300, which > transmit read temperature to the base station. I run Listen to print out > the received values. > > For some motes, the sensed values are reasonable > > For some other motes, the sensed values are 0. Why is that? > > Even with reasonable sensed values, the values are not constant for > consecutive packets. Is this normal? > > Thanks for the information, > > Gary > > > ------------------------------------------------------------------------ > > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help -- Platform: WinXP/Cygwin TinyOS version: 1.x, Boomerang Programmer: MIB510 Device(s): Mica2, MicaZ, Tmote Sensor board: homebrew _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
