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esphome-dev/esphome/components/ina3221/sensor.py
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Python

import esphome.codegen as cg
import esphome.config_validation as cv
from esphome.components import i2c, sensor
from esphome.const import (
CONF_BUS_VOLTAGE,
CONF_CURRENT,
CONF_ID,
CONF_POWER,
CONF_SHUNT_RESISTANCE,
CONF_SHUNT_VOLTAGE,
DEVICE_CLASS_VOLTAGE,
DEVICE_CLASS_CURRENT,
DEVICE_CLASS_POWER,
ICON_EMPTY,
UNIT_VOLT,
UNIT_AMPERE,
UNIT_WATT,
)
DEPENDENCIES = ["i2c"]
CONF_CHANNEL_1 = "channel_1"
CONF_CHANNEL_2 = "channel_2"
CONF_CHANNEL_3 = "channel_3"
ina3221_ns = cg.esphome_ns.namespace("ina3221")
INA3221Component = ina3221_ns.class_(
"INA3221Component", cg.PollingComponent, i2c.I2CDevice
)
INA3221_CHANNEL_SCHEMA = cv.Schema(
{
cv.Optional(CONF_BUS_VOLTAGE): sensor.sensor_schema(
UNIT_VOLT, ICON_EMPTY, 2, DEVICE_CLASS_VOLTAGE
),
cv.Optional(CONF_SHUNT_VOLTAGE): sensor.sensor_schema(
UNIT_VOLT, ICON_EMPTY, 2, DEVICE_CLASS_VOLTAGE
),
cv.Optional(CONF_CURRENT): sensor.sensor_schema(
UNIT_AMPERE, ICON_EMPTY, 2, DEVICE_CLASS_CURRENT
),
cv.Optional(CONF_POWER): sensor.sensor_schema(
UNIT_WATT, ICON_EMPTY, 2, DEVICE_CLASS_POWER
),
cv.Optional(CONF_SHUNT_RESISTANCE, default=0.1): cv.All(
cv.resistance, cv.Range(min=0.0, max=32.0)
),
}
)
CONFIG_SCHEMA = (
cv.Schema(
{
cv.GenerateID(): cv.declare_id(INA3221Component),
cv.Optional(CONF_CHANNEL_1): INA3221_CHANNEL_SCHEMA,
cv.Optional(CONF_CHANNEL_2): INA3221_CHANNEL_SCHEMA,
cv.Optional(CONF_CHANNEL_3): INA3221_CHANNEL_SCHEMA,
}
)
.extend(cv.polling_component_schema("60s"))
.extend(i2c.i2c_device_schema(0x40))
)
def to_code(config):
var = cg.new_Pvariable(config[CONF_ID])
yield cg.register_component(var, config)
yield i2c.register_i2c_device(var, config)
for i, channel in enumerate([CONF_CHANNEL_1, CONF_CHANNEL_2, CONF_CHANNEL_3]):
if channel not in config:
continue
conf = config[channel]
if CONF_SHUNT_RESISTANCE in conf:
cg.add(var.set_shunt_resistance(i, conf[CONF_SHUNT_RESISTANCE]))
if CONF_BUS_VOLTAGE in conf:
sens = yield sensor.new_sensor(conf[CONF_BUS_VOLTAGE])
cg.add(var.set_bus_voltage_sensor(i, sens))
if CONF_SHUNT_VOLTAGE in conf:
sens = yield sensor.new_sensor(conf[CONF_SHUNT_VOLTAGE])
cg.add(var.set_shunt_voltage_sensor(i, sens))
if CONF_CURRENT in conf:
sens = yield sensor.new_sensor(conf[CONF_CURRENT])
cg.add(var.set_current_sensor(i, sens))
if CONF_POWER in conf:
sens = yield sensor.new_sensor(conf[CONF_POWER])
cg.add(var.set_power_sensor(i, sens))