Hi
Sending this to the list also ;)
Thank you very much for a good answer.
25. feb. 2013 kl. 11:52 skrev Michiel Konstapel <[email protected]>:
> If always on, the radio will consume about 20 mA in receive mode. The
> Sensirion sensor has a fairly high VCC requirement (2.4V) so you won't be
> able to use the full capacity of your batteries.
I once saw the sensor returning very wrong values once, and assumed it was
because of battery issues. Is this what happens, or will it stop responding?
> Assuming you can get about 1500 mAh from your AA cells, they'll last about 3
> days. If you use low power listening at an appropriate interval, you should
> be able to get that down to the 1-2 mA range, so that's about 10 times better.
This would give me 30 days, which would be more than enough for now. Do you
have any suggestions as to what sleep intervals would be good to use?
>
> The GPS will be a big drain on your batteries. If size is not an issue, you
> could just hook them up to a set of D cells instead - those have about 7
> times the capacity of an AA (Duracel Procell).
I will not be using the GPS, but it is attached to the sensorboard. Am I right
that it will not be powered and not use much power if it is never powered?
--Jan Egil
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