Hi! Sorry for answering so late. :-(
On Fri, 30 May 2008, Varun Jain wrote: > Hi, > > I am currently trying to set up a WSN using tinyos-2.x. I have Chipcon's > CC2420DBK with me, it has an onboard temperature sensor LM61 attached to > it with atmega128 processor. I am trying to read the temperature values > from this sensor, I am constantly getting 0x3ff as my data in the raw > packet using the Listen tool. I am trying to get Oscilloscope > application running. I am reading the value on ADC3 channel on PortF3. > The Atmega128 has 10 bits of precision so the 0x3ff is the maximum value. This is the value you'll get if the voltage you are reading is above the reference used by the ADC. How did you configured the ADC? Can you measure the output voltage from temperature sensor with a voltmeter? -- Razvan ME > > I read somewhere you discussing about this value. Can you guide me as to > what does this value depict, I think I am reading wrong values as I > keep the board in front of hot air source which really heats up the > sensor but still it gives the same value. > > > > Any help or direction will really help... > > > > Varun Jain > R&D Engineer > Spiderbox Pty. Ltd. > P: +617 3318 9509 > F: +617 3318 9595 > M: +61401 091 248 > E: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > W: http://www.spiderbox.com.au <http://www.spiderbox.com.au/> > > _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
