Comments on: MTS300/310 Sensorboard: Sampling multiple sensors simultaneously http://www.keally.org/2009/05/14/mts300310-sensorboard-sampling-multiple-sensors-simultaneously/ Life of the ABD grad student... Tue, 24 Aug 2010 18:43:48 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Matt http://www.keally.org/2009/05/14/mts300310-sensorboard-sampling-multiple-sensors-simultaneously/comment-page-1/#comment-257 Matt Mon, 20 Jul 2009 18:47:12 +0000 http://www.keally.org/?p=680#comment-257 From the <a href="http://www.xbow.com/support/Support_pdf_files/MTS-MDA_Series_Users_Manual.pdf" rel="nofollow">Crossbow MTS Users Manual</a>: "The light and temperature sensor share the same A/D converter channel (ADC1). Only turn one sensor on at a time, or the reading at ADC1 will be corrupted and meaningless." This is also reflected in the sensorboard code, so either only light or only temperature can be used at any given time. The currently active light or temperature sensor has to be turned off and the other turned on. From the Crossbow MTS Users Manual: “The light and temperature sensor share the same A/D converter channel (ADC1). Only turn one sensor on at a time, or the reading at ADC1 will be corrupted and meaningless.”

This is also reflected in the sensorboard code, so either only light or only temperature can be used at any given time. The currently active light or temperature sensor has to be turned off and the other turned on.

]]> By: Andreas H. http://www.keally.org/2009/05/14/mts300310-sensorboard-sampling-multiple-sensors-simultaneously/comment-page-1/#comment-255 Andreas H. Mon, 20 Jul 2009 00:28:48 +0000 http://www.keally.org/?p=680#comment-255 Have you tried to read light/photo sensor and the temp sensor at one shot? After PhotoC.SplitControl.start() and TempC().SplitControl.start() the signal TempC.Read.ReadDone() never fires. Is it possible to use light/photo sensor and temp sensor at the same time, or have you to stop light sensor before you can read the temp sensor? Have you tried to read light/photo sensor and the temp sensor at one shot? After PhotoC.SplitControl.start() and TempC().SplitControl.start() the signal TempC.Read.ReadDone() never fires. Is it possible to use light/photo sensor and temp sensor at the same time, or have you to stop light sensor before you can read the temp sensor?

]]> By: Matt http://www.keally.org/2009/05/14/mts300310-sensorboard-sampling-multiple-sensors-simultaneously/comment-page-1/#comment-227 Matt Tue, 26 May 2009 12:45:55 +0000 http://www.keally.org/?p=680#comment-227 I did get the magnetometer to work, but I never bothered to set the gain. To get significant readings from it, I got best results using magnets. I did get the magnetometer to work, but I never bothered to set the gain. To get significant readings from it, I got best results using magnets.

]]> By: Rahul Sen http://www.keally.org/2009/05/14/mts300310-sensorboard-sampling-multiple-sensors-simultaneously/comment-page-1/#comment-226 Rahul Sen Tue, 26 May 2009 10:27:55 +0000 http://www.keally.org/?p=680#comment-226 I want to know if you have used the magnetometer with tinyos 2.0 because i am not able to set the gain of magnetometer. I want to know if you have used the magnetometer with tinyos 2.0 because i am not able to set the gain of magnetometer.

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