I have a tickle of memory that there is a hardware conflict with the temp sensor and micaz. search back on this list and peruse the schematic and platform specific Temp code.
MS Gary Lee wrote: > Hi, > > I am running the MultihopOscilloscope from tinyos 2.x from CVS. I am > using Micaz motes to measure the temperature as one example. In the PC, > I run Listen. > > I notice that: when I use Micaz + MTS 300, everything is ok. Listen can > display the correct sensed temperature. > > However, when I use Micaz + MTS310, the sensed values are all 0. > > does this mean MTS310 sensor board will not work under T2? Under T2, > there is only mts300/ directory, not mts310/ > > I have made sure that the sensor boards are securely attached to Micaz. > > Thanks for the help, > > Gary > > On Fri, Apr 18, 2008 at 10:14 AM, Michael Schippling <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > 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] > <mailto:[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 > > -- 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
