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Add round sensor filter (#5532)

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Jesse Hills 2023-10-14 13:07:23 +13:00 committed by GitHub
parent da3e3903dd
commit 7ddcdab351
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3 changed files with 36 additions and 0 deletions
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18
esphome/components/sensor/__init__.py
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@ -242,6 +242,7 @@ CalibrateLinearFilter = sensor_ns.class_("CalibrateLinearFilter", Filter)
CalibratePolynomialFilter = sensor_ns.class_("CalibratePolynomialFilter", Filter)
SensorInRangeCondition = sensor_ns.class_("SensorInRangeCondition", Filter)
ClampFilter = sensor_ns.class_("ClampFilter", Filter)
RoundFilter = sensor_ns.class_("RoundFilter", Filter)
validate_unit_of_measurement = cv.string_strict
validate_accuracy_decimals = cv.int_
@ -702,6 +703,23 @@ async def clamp_filter_to_code(config, filter_id):
)
@FILTER_REGISTRY.register(
"round",
RoundFilter,
cv.maybe_simple_value(
{
cv.Required(CONF_ACCURACY_DECIMALS): cv.uint8_t,
},
key=CONF_ACCURACY_DECIMALS,
),
)
async def round_filter_to_code(config, filter_id):
return cg.new_Pvariable(
filter_id,
config[CONF_ACCURACY_DECIMALS],
)
async def build_filters(config):
return await cg.build_registry_list(FILTER_REGISTRY, config)

9
esphome/components/sensor/filter.cpp
View file

@ -445,5 +445,14 @@ optional<float> ClampFilter::new_value(float value) {
return value;
}
RoundFilter::RoundFilter(uint8_t precision) : precision_(precision) {}
optional<float> RoundFilter::new_value(float value) {
if (std::isfinite(value)) {
float accuracy_mult = powf(10.0f, this->precision_);
return roundf(accuracy_mult * value) / accuracy_mult;
}
return value;
}
} // namespace sensor
} // namespace esphome

9
esphome/components/sensor/filter.h
View file

@ -419,5 +419,14 @@ class ClampFilter : public Filter {
float max_{NAN};
};
class RoundFilter : public Filter {
public:
explicit RoundFilter(uint8_t precision);
optional<float> new_value(float value) override;
protected:
uint8_t precision_;
};
} // namespace sensor
} // namespace esphome