kopia lustrzana https://github.com/pimoroni/pimoroni-pico
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README.md | ||
breakout_bmp280.c | ||
breakout_bmp280.cpp | ||
breakout_bmp280.h | ||
micropython.cmake | ||
micropython.mk |
README.md
BMP280
Getting Started
Construct new PimoroniI2C
and BreakoutBMP280
instances:
from breakout_bmp280 import BreakoutBMP280
from pimoroni_i2c import PimoroniI2C
PINS_BREAKOUT_GARDEN = {"sda": 4, "scl": 5}
PINS_PICO_EXPLORER = {"sda": 20, "scl": 21}
i2c = PimoroniI2C(**PINS_BREAKOUT_GARDEN)
bmp = BreakoutBMP280(i2c)
Reading Temperature & Pressure
The read
method will return a tuple containing Temperature (degrees C) and Pressure (Pa) values:
temperature, pressure = bmp.read()
Configuring The Sensor
The configure
method allows you to set up the oversampling, filtering and operation mode.
bmp.configure(filter, standby_time, os_pressure, os_temp, mode)
The breakout_bmp280
module includes constants for these:
Filter Settings
FILTER_COEFF_OFF
FILTER_COEFF_2
FILTER_COEFF_4
FILTER_COEFF_8
FILTER_COEFF_16
Oversampling Settings
NO_OVERSAMPLING
OVERSAMPLING_1X
OVERSAMPLING_2X
OVERSAMPLING_4X
OVERSAMPLING_8X
OVERSAMPLING_16X
Mode Settings
SLEEP_MODE
FORCED_MODE
NORMAL_MODE
Standby/Output Data Rate Settings
STANDBY_TIME_0_5_MS
STANDBY_TIME_62_5_MS
STANDBY_TIME_125_MS
STANDBY_TIME_250_MS
STANDBY_TIME_500_MS
STANDBY_TIME_1000_MS
STANDBY_TIME_2000_MS
STANDBY_TIME_4000_MS
Defaults
bmp.configure(FILTER_COEFF_2, STANDBY_TIME_1000_MS, OVERSAMPLING_4X, OVERSAMPLING_4X)