Sensebender Micro + BMP085 Module: Power Consumption
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Hi,
I intend to attach a BMP085 Module (http://www.ebay.com/itm/Replace-BMP085-5Pin-3-3V-5V-BMP180-Digital-Barometric-Pressure-Sensor-Module-/182056609374?hash=item2a636b665e:g:CU8AAOSwvg9XeI9z) to a SensebenderMicro.
As the module contains a power regulator which converts 5V to 3.3V for the BMP085 I would like to feed the battery supplied voltage directly to the 3.3V pin (simply to bypass the regulator).-
Will the regulator drain my batteries through the 3.3V pin (although the 5V pin is not connected)?
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Does the BMP085 chip need a regulated voltage to be accurate or will the sensor provide exact measurements if the voltage of the batteries drops below 3.0V?
Anyone has an idea?
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I would remove the regulator, as it's not needed.
I have had a node running for the last 6 months based on a Sensebender Micro and a bmp180 (if I remember correctly).
Batteries have been used by the Sensebender alone in the 12 months prior to the addition of the bmp180, and the node still reports about 66% battery left (that's 18 months of service time, where the last 6 is with bmp180)
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