mirror of
https://github.com/esphome/esphome.git
synced 2025-11-16 06:45:48 +00:00
New component: Add support for bmp581 pressure and temperature sensors (#4657)
This commit is contained in:
kahrendt
GitHub
163
esphome/components/bmp581/sensor.py
Normal file
163
esphome/components/bmp581/sensor.py
Normal file
@@ -0,0 +1,163 @@
|
||||
import math
|
||||
import esphome.codegen as cg
|
||||
import esphome.config_validation as cv
|
||||
from esphome.components import i2c, sensor
|
||||
from esphome.const import (
|
||||
CONF_ID,
|
||||
CONF_IIR_FILTER,
|
||||
CONF_OVERSAMPLING,
|
||||
CONF_PRESSURE,
|
||||
CONF_TEMPERATURE,
|
||||
DEVICE_CLASS_ATMOSPHERIC_PRESSURE,
|
||||
DEVICE_CLASS_TEMPERATURE,
|
||||
STATE_CLASS_MEASUREMENT,
|
||||
UNIT_CELSIUS,
|
||||
UNIT_PASCAL,
|
||||
)
|
||||
|
||||
CODEOWNERS = ["@kahrendt"]
|
||||
DEPENDENCIES = ["i2c"]
|
||||
|
||||
bmp581_ns = cg.esphome_ns.namespace("bmp581")
|
||||
|
||||
Oversampling = bmp581_ns.enum("Oversampling")
|
||||
OVERSAMPLING_OPTIONS = {
|
||||
"NONE": Oversampling.OVERSAMPLING_NONE,
|
||||
"2X": Oversampling.OVERSAMPLING_X2,
|
||||
"4X": Oversampling.OVERSAMPLING_X4,
|
||||
"8X": Oversampling.OVERSAMPLING_X8,
|
||||
"16X": Oversampling.OVERSAMPLING_X16,
|
||||
"32X": Oversampling.OVERSAMPLING_X32,
|
||||
"64X": Oversampling.OVERSAMPLING_X64,
|
||||
"128X": Oversampling.OVERSAMPLING_X128,
|
||||
}
|
||||
|
||||
IIRFilter = bmp581_ns.enum("IIRFilter")
|
||||
IIR_FILTER_OPTIONS = {
|
||||
"OFF": IIRFilter.IIR_FILTER_OFF,
|
||||
"2X": IIRFilter.IIR_FILTER_2,
|
||||
"4X": IIRFilter.IIR_FILTER_4,
|
||||
"8X": IIRFilter.IIR_FILTER_8,
|
||||
"16X": IIRFilter.IIR_FILTER_16,
|
||||
"32X": IIRFilter.IIR_FILTER_32,
|
||||
"64X": IIRFilter.IIR_FILTER_64,
|
||||
"128X": IIRFilter.IIR_FILTER_128,
|
||||
}
|
||||
|
||||
BMP581Component = bmp581_ns.class_(
|
||||
"BMP581Component", cg.PollingComponent, i2c.I2CDevice
|
||||
)
|
||||
|
||||
|
||||
def compute_measurement_conversion_time(config):
|
||||
# - adds up sensor conversion time based on temperature and pressure oversampling rates given in datasheet
|
||||
# - returns a rounded up time in ms
|
||||
|
||||
# Page 12 of datasheet
|
||||
PRESSURE_OVERSAMPLING_CONVERSION_TIMES = {
|
||||
"NONE": 1.0,
|
||||
"2X": 1.7,
|
||||
"4X": 2.9,
|
||||
"8X": 5.4,
|
||||
"16X": 10.4,
|
||||
"32X": 20.4,
|
||||
"64X": 40.4,
|
||||
"128X": 80.4,
|
||||
}
|
||||
|
||||
# Page 12 of datasheet
|
||||
TEMPERATURE_OVERSAMPLING_CONVERSION_TIMES = {
|
||||
"NONE": 1.0,
|
||||
"2X": 1.1,
|
||||
"4X": 1.5,
|
||||
"8X": 2.1,
|
||||
"16X": 3.3,
|
||||
"32X": 5.8,
|
||||
"64X": 10.8,
|
||||
"128X": 20.8,
|
||||
}
|
||||
|
||||
pressure_conversion_time = (
|
||||
0.0 # No conversion time necessary without a pressure sensor
|
||||
)
|
||||
if pressure_config := config.get(CONF_PRESSURE):
|
||||
pressure_conversion_time = PRESSURE_OVERSAMPLING_CONVERSION_TIMES[
|
||||
pressure_config.get(CONF_OVERSAMPLING)
|
||||
]
|
||||
|
||||
temperature_conversion_time = (
|
||||
1.0 # BMP581 always samples the temperature even if only reading pressure
|
||||
)
|
||||
if temperature_config := config.get(CONF_TEMPERATURE):
|
||||
temperature_conversion_time = TEMPERATURE_OVERSAMPLING_CONVERSION_TIMES[
|
||||
temperature_config.get(CONF_OVERSAMPLING)
|
||||
]
|
||||
|
||||
# Datasheet indicates a 5% possible error in each conversion time listed
|
||||
return math.ceil(1.05 * (pressure_conversion_time + temperature_conversion_time))
|
||||
|
||||
|
||||
CONFIG_SCHEMA = (
|
||||
cv.Schema(
|
||||
{
|
||||
cv.GenerateID(): cv.declare_id(BMP581Component),
|
||||
cv.Optional(CONF_TEMPERATURE): sensor.sensor_schema(
|
||||
unit_of_measurement=UNIT_CELSIUS,
|
||||
accuracy_decimals=1,
|
||||
device_class=DEVICE_CLASS_TEMPERATURE,
|
||||
state_class=STATE_CLASS_MEASUREMENT,
|
||||
).extend(
|
||||
{
|
||||
cv.Optional(CONF_OVERSAMPLING, default="NONE"): cv.enum(
|
||||
OVERSAMPLING_OPTIONS, upper=True
|
||||
),
|
||||
cv.Optional(CONF_IIR_FILTER, default="OFF"): cv.enum(
|
||||
IIR_FILTER_OPTIONS, upper=True
|
||||
),
|
||||
}
|
||||
),
|
||||
cv.Optional(CONF_PRESSURE): sensor.sensor_schema(
|
||||
unit_of_measurement=UNIT_PASCAL,
|
||||
accuracy_decimals=0,
|
||||
device_class=DEVICE_CLASS_ATMOSPHERIC_PRESSURE,
|
||||
state_class=STATE_CLASS_MEASUREMENT,
|
||||
).extend(
|
||||
{
|
||||
cv.Optional(CONF_OVERSAMPLING, default="16X"): cv.enum(
|
||||
OVERSAMPLING_OPTIONS, upper=True
|
||||
),
|
||||
cv.Optional(CONF_IIR_FILTER, default="OFF"): cv.enum(
|
||||
IIR_FILTER_OPTIONS, upper=True
|
||||
),
|
||||
}
|
||||
),
|
||||
}
|
||||
)
|
||||
.extend(cv.polling_component_schema("60s"))
|
||||
.extend(i2c.i2c_device_schema(0x46))
|
||||
)
|
||||
|
||||
|
||||
async def to_code(config):
|
||||
var = cg.new_Pvariable(config[CONF_ID])
|
||||
await cg.register_component(var, config)
|
||||
await i2c.register_i2c_device(var, config)
|
||||
if temperature_config := config.get(CONF_TEMPERATURE):
|
||||
sens = await sensor.new_sensor(temperature_config)
|
||||
cg.add(var.set_temperature_sensor(sens))
|
||||
cg.add(
|
||||
var.set_temperature_oversampling_config(
|
||||
temperature_config[CONF_OVERSAMPLING]
|
||||
)
|
||||
)
|
||||
cg.add(
|
||||
var.set_temperature_iir_filter_config(temperature_config[CONF_IIR_FILTER])
|
||||
)
|
||||
|
||||
if pressure_config := config.get(CONF_PRESSURE):
|
||||
sens = await sensor.new_sensor(pressure_config)
|
||||
cg.add(var.set_pressure_sensor(sens))
|
||||
cg.add(var.set_pressure_oversampling_config(pressure_config[CONF_OVERSAMPLING]))
|
||||
cg.add(var.set_pressure_iir_filter_config(pressure_config[CONF_IIR_FILTER]))
|
||||
|
||||
cg.add(var.set_conversion_time(compute_measurement_conversion_time(config)))
|
||||
Reference in New Issue
Block a user