The Barometer Tag allows you to measure absolute pressure in the range from 20 kPa to 110 kPa, or altitude above the sea level in meters. It uses a low-power I²C sensor MPL3115A2 with an absolute accuracy of ±0.4 kPa. It features a very low active and standby current.
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Monitoring of absolute pressure is useful for weather forecast and it is also an important parameter in biometeorology because the absolute pressure can affect our health.
- Absolute pressure sensor MPL3115A2 (NXP)
- Sensor only needs I²C bus
- Pressure range: from 20 kPa to 110 kPa
- Altitude range: from -698 to 11,775 m
- Absolute accuracy: ±0.4 kPa
- Optional interrupt output
- Power consumption:
- 40 µA average current (1 Hz sample rate)
- 2 µA standby current
- Operating voltage range: 2.0 V to 3.6 V
- Operating temperature range: -40 to 85 °C
- Mechanical dimensions: 16 x 16 mm