[Tinyos-help] Getting temperature from Sensirion Temperature sensor on Tmote Sky

2006-07-24 Thread Ioannis Krontiris
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:

Re: [Tinyos-help] Getting temperature from Sensirion Temperature sensor on Tmote Sky

2006-07-24 Thread Joe Polastre
Can you post your raw data, including timestamps? On 7/24/06, Ioannis Krontiris [EMAIL PROTECTED] wrote: 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

Re: [Tinyos-help] Getting temperature from Sensirion Temperature sensor on Tmote Sky

2006-07-24 Thread Ioannis Krontiris
I am attaching the raw values for temperature and voltage These are the values from our modified Delta (where we also send humidity and voltage with DeltaMsg). So in our nesC we are taking all three values (temp, humidity, and volt) as in the code below: async event result_t

Re: [Tinyos-help] Getting temperature from Sensirion Temperature sensor on Tmote Sky

2006-07-24 Thread Joe Polastre
Are you wiring to InternalVoltage or to VoltageC? It looks like your data is from VoltageC, which would indicate a correct voltage of 2.931V. For the Sensirion, I'm not sure how often you're sampling, but you should never sample more than 1-2 times per second as doing so drastically can create