I've also seen the temperature offset issue; I don't how to solve it other than correcting at the terminal end. > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On > Behalf Of Ioannis Krontiris > Sent: Monday, July 24, 2006 09:21 > To: TinyOs Help List > Subject: [Tinyos-help] Getting temperature from Sensirion > Temperature sensoron Tmote Sky > > > Hello, > > we are trying to get temperature, humidity and voltage from > Tmote Sky. > We are using the Delta application. > > For the temperature we are reading Sensirion Humidity and > Temperature sensor. At the base station we are using the > indicated formulas to convert to meaningful Celsius degrees: > > temperature = -39.60 + 0.01*SOt > > where SOt is the value we get from the sensor. > The result is like 37 C where it should be 32 C. So we have a > big difference. Are we doing something wrong? > > > Also for the voltage, we are measuring the value from the > mote attached > to the USB (so the value should be 3V) but we get 2.3 V > We are using the formula > > value/4096 * 1.5 * 2 > > Again, what is that we are doing wrong? We get the same results if we > place new batteries to a mote. > > Thanks in advance, > > Ioannis. > > > _______________________________________________ > Tinyos-help mailing list > Tinyos-help@Millennium.Berkeley.EDU > https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/ tinyos-help
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