No it is ok, you helped my telling me about the InternalVoltage component, just I wondered if there is a relation between level battery to Voltage level because I do not know if there is some relation between them? The problem is that I am going to use it for critical systems which never can stop because of battery off, for this reason I need something which warns me that battery is going to be finished completly, before that the battery is actually OFF (0% of its level).I would like to have something which warns me when the batterys level is around 10% of its 100% level.
Thanks in advance and thank Nicola for your answer Regards David De: Nicola Bressan [mailto:sbr...@gmail.com] Enviado el: martes, 27 de octubre de 2009 11:23 Para: David Conde Asunto: Re: [Tinyos-help] Battery Level for Telosb I'm sorry but I don't succeed in answering to your questions because I'm not never me place the problem... I don't have more experience about this... I have confined to effect a periodic reading of the data.... Sorry if I don't help you.... Nicola 2009/10/27 David Conde <dco...@citic.es> Hi Nicola, Thank you for your answer. Do you mean that you use Msp430InternalVoltageC in order to get the level battery?But what is the function which relates battery level to voltage level from InternalVoltageC? For example, do you know what voltage from InternalVoltageC is equivalent to 10 % of full battery? I read about use InternalVoltage and people said that is not very reliable, because of level battery usually falls down much more faster as Internal Voltage does, so from your experience, do you usually use it in order to get a threshold for mínimum battery level, dont you?What is the voltage do you use as mínimum battery level? Thank you in advance David De: Nicola Bressan [mailto:sbr...@gmail.com] Enviado el: martes, 27 de octubre de 2009 11:02 Para: David Conde Asunto: Re: [Tinyos-help] Battery Level for Telosb You can see the component Msp430InternalVoltageC(). I use this for read the Voltage/Battery Level and I think that is the correct value becouse i see that, when I use the battery the voltage is 2.5V but if I use the cable-USB the voltage is 2.97V Nicola 2009/10/27 David Conde <dco...@citic.es> Hi, I have read some information in TinyOS-help about how getting battery level from VoltageC components in Telosb, but I think there is not direct relation between the Voltage Level in TElosb and Battery level, I am sure that someone else has had the same need of getting the battery level in order to send an alarm message so batteries in Telosb can be swicthed each time that they are almost finish. How could I solve this problem?If there is no way to get the battery level from Telosb, how can I work around about this?Does it exist any sensor which can be integrated in Telosb to get the battery level as the same way as a mobile phone does it?Does it exist any electronic circuit to get the battery level? I am working with TinyOS 1.x and Telosb motes Thank you in advance _______________________________________________ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
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