[Tinyos-help] Re: problems with temperature readings
Daniel Villón
daniel.villon at gmail.com
Thu Jun 8 06:31:25 PDT 2006
It is working now, you have to be very careful in watching the way the
Micasbverify calls the PhotoTemp and do it in the same way, also you have to
be careful in the initialization. the new PhotoTemp archive works OK for
handling the temperature and light sensor.
Only if somebody haves in the future the same problem.
Daniel
On 6/8/06, Daniel Villón <daniel.villon at gmail.com> wrote:
>
> Hi Raghu,
>
> Thanks for your help but, I have checked the Micasbverify example and in
> some way I'm doing the same thing that that example does. In the Example, in
> the MagY.dataReady they call the tempADC.getData and in my application, in
> the ADC2.dataReady I call the ADC1.getData. I also have look at the
> PhotoTemp code and I have exchanged the old file for the new one which is
> supposed to handle the time gap that is needed, I don't know if is there
> anything else that I'm missing.
>
> Daniel
>
>
> On 6/7/06, Raghu Ganti <raghukiran at gmail.com> wrote:
> >
> > Hi Daniel:
> > Have you done all the init? Like wiring to the TempStdControl and
> > calling init and start? Have a look at $TOSROOT/apps/Micasbverify/ for an
> > example of how to use the temperature sensor. Also the light and temp sensor
> > share the same pin, so you have to wait sometime before calling
> > ADC1.getData(). I think there was a fix to ensure that there is enough
> > time gap when photo and temp are used at the same time, you will have to
> > check that by looking at the PhotoTemp code.
> >
> > Hope that helps.
> >
> > Raghu
> >
> >
> >
> > >
> > > Message: 1
> > > Date: Wed, 7 Jun 2006 18:44:09 +0200
> > > From: " Daniel Vill?n " <daniel.villon at gmail.com>
> > > Subject: [Tinyos-help] problems with temperature readings
> > > To: " tinyos-help at Millennium.Berkeley.EDU"
> > > <tinyos-help at millennium.berkeley.edu >
> > > Message-ID:
> > > < b604b0720606070944w5075d624oacb42daba511a6e7 at mail.gmail.com>
> > > Content-Type: text/plain; charset="iso-8859-1"
> >
> >
> >
> > Hi,
> >
> > I am using a MICAz with an MDA300 to do temperature and light readings.
> > I've
> > seen the posts about the problem of using the temperature sensor and the
> > radio because they share one pin. I also have seen the modified
> > PhotoTempM.nc module which is supposed to resolve the problem (look
> > ../platform/micaz), I included in my project.
> > Now that I have done those changes, I'm trying to receive the the data
> > and
> > this is what I get:
> >
> > 01 BE 03 88 00
> >
> > where 01 is the mote number, 03BE is the light reading and 0088 is the
> > temperature reading... I have more readings but they are almost the
> > same.
> > The problem is that when I do the conversion for the temperature sensor,
> > I
> > get a -10 C which is impossible because I'm into a room and it is very
> > far
> > from the 30 C that we have now. Now I don't know if it is a problem of
> > the
> > shared pin, or if it is a problem of the formula (Which I don't think it
> > is), or what is it?, there is something strange going on too, when I put
> > my
> > hand over the light sensor, the light and the temperature reading
> > changes...both.
> > I attach a part of the program when I do the readings of the light and
> > temperature, maybe I need to change the way I do it in order to get a
> > correct temperature reading.
> >
> > event result_t Timer.fired(){ // every time the timer fires
> > it
> > has to make a reading of both sensors
> >
> > if (cont < 59) cont++;
> > else cont=0;
> >
> > if (cont == 59) return call ADC2.getData ();
> >
> > return SUCCESS;
> > }
> >
> > async event result_t ADC2.dataReady(uint16_t data){ //
> > reading
> > of temperature sensor as it is done in the tutorial
> >
> >
> > atomic{
> > data2 = data;
> > }
> >
> > return call ADC1.getData();
> >
> > }
> >
> >
> > async event result_t ADC1.dataReady(uint16_t data) { // reading
> > of
> > the light sensor as it is done in the tutorial
> >
> > atomic{
> > data1 = data;
> > }
> >
> >
> > atomic{
> > //current
> > data // here I
> > do
> > the arrengement of the data to send it
> > ptrmsg->actual.nodo = TOS_LOCAL_ADDRESS;
> > ptrmsg->actual.sensor1 = data1;
> > ptrmsg->actual.sensor2 = data2;
> > dada1++;
> > ptrmsg->dada1 = dada1;
> > }
> >
> >
> > post envio
> > (); // envio =
> > send
> > , it goes to a post where the data is sended
> >
> > return SUCCESS;
> > }
> >
> > task void envio () {
> > ptrmsg = call SendMHopMsg.getBuffer(msgptr, &len);
> >
> > call SendMHopMsg.sendTTL(0x00,sizeof(datos), msgptr,0);
> >
> > }
> >
> > I hope I was clear enough and somebody can help me
> >
> >
> > Daniel Villón V.
> > -----------------------------------------------------------
> > Departamento de Ingeniería Telemática.
> > Universitat Politècnica de Catalunya
> > -----------------------------------------------------------
> > C/. Jordi Girona 1-3
> > Modulo C3 Laboratorio 003
> > Barcelona CP 08034, España
> > Teléfono: +34 93 289 36 71
> > Celular: +34 697 91 43 53
> > e-mail: dvil1541 at alu-etsetb.upc.edu
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> >
>
>
> --
>
> Daniel Villón V.
> -----------------------------------------------------------
> Departamento de Ingeniería Telemática.
> Universitat Politècnica de Catalunya
> -----------------------------------------------------------
> C/. Jordi Girona 1-3
> Modulo C3 Laboratorio 003
> Barcelona CP 08034, España
> Teléfono: +34 93 289 36 71
> Celular: +34 697 91 43 53
> e-mail: dvil1541 at alu-etsetb.upc.edu
>
--
Daniel Villón V.
-----------------------------------------------------------
Departamento de Ingeniería Telemática.
Universitat Politècnica de Catalunya
-----------------------------------------------------------
C/. Jordi Girona 1-3
Modulo C3 Laboratorio 003
Barcelona CP 08034, España
Teléfono: +34 93 289 36 71
Celular: +34 697 91 43 53
e-mail: dvil1541 at alu-etsetb.upc.edu
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