SW03 Module¶
This is a module for the SW03 ambient temperature, altitude and pressure sensor. The board is based off the MPL3115A2 manufactured by NXP Semiconductors. The board uses I2C for communication.
Datasheets:
SW03 class¶
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class
SW03(i2cdrv, addr=0x60, clk=100000)¶ Creates an intance of a new SW03.
Parameters: - i2cdrv – I2C Bus used ‘( I2C0, ... )’
- addr – Slave address, default 0x60
- clk – Clock speed, default 100kHz
Example:
from xinabox.sw03 import sw03 ... SW03 = sw03.SW03(I2C0) SW03.init() alt = SW03.getAltitude() pres = SW03.getPressure()
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init(osr=0)¶ Initialize the MPL3115A2 setting the oversample rate value.
Parameters: osr – set the oversample rate value (from 0 to 7), default 0
| OSR Value | Oversample Ratio | Data Ready |
|---|---|---|
| 0 | 1 | 6 ms |
| 1 | 2 | 10 ms |
| 2 | 4 | 18 ms |
| 3 | 8 | 34 ms |
| 4 | 16 | 66 ms |
| 5 | 32 | 130 ms |
| 6 | 64 | 258 ms |
| 7 | 128 | 512 ms |
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get_raw_alt()¶ Retrieves the current altitude data from the sensor as raw value.
Returns raw_a
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get_raw_pres()¶ Retrieves the current pressure data from the sensor as raw value.
Returns raw_p
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get_raw_temp()¶ Retrieves the current temperature data from the sensor as raw value.
Returns raw_t
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getAltitude()¶ Calculates, from measured pressure, the current altitude data as value in meters.
Returns altitude
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getPressure()¶ Retrieves the current pressure data from the sensor as calibrate value in Pa.
Returns pres
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getTempC()¶ Retrieves the current temperature data from the sensor as calibrate value in °C.
Returns temp