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¶
class SW03(i2cdrv, addr=0x60, clk=100000)
Creates an intance of a new SW03.
Arguments:
- 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()
init(osr=0)
Initialize the MPL3115A2 setting the oversample rate value.
Arguments: 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 |
get_raw_alt()
Retrieves the current altitude data from the sensor as raw value.
Returns raw_a.
get_raw_pres()
Retrieves the current pressure data from the sensor as raw value.
Returns raw_p.
get_raw_temp()
Retrieves the current temperature data from the sensor as raw value.
Returns raw_t.
getAltitude()
Calculates, from measured pressure, the current altitude data as value in meters.
Returns altitude.
getPressure()
Retrieves the current pressure data from the sensor as calibrate value in Pa.
Returns pres.
**getTempC()
"
Retrieves the current temperature data from the sensor as calibrate value in °C.
Returns temp.