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[sensor] Fix a double promotion warning in the NTC resistance filter (#19985)

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J. Nick Koston
2026-10-01 13:35:15 -05:00
committed by GitHub
parent e500ece4d5
commit 36bcce563a
1 changed files with 1 additions and 1 deletions
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esphome/components/sensor/filter.cpp
+1 -1
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@@ -450,7 +450,7 @@ optional<float> ToNTCResistanceFilter::new_value(float value) {
} }
double k = 273.15; double k = 273.15;
// https://de.wikipedia.org/wiki/Steinhart-Hart-Gleichung#cite_note-stein2_s4-3 // https://de.wikipedia.org/wiki/Steinhart-Hart-Gleichung#cite_note-stein2_s4-3
double t = value + k; double t = static_cast<double>(value) + k;
double y = (this->a_ - 1 / (t)) / (2 * this->c_); double y = (this->a_ - 1 / (t)) / (2 * this->c_);
double x = sqrt(pow(this->b_ / (3 * this->c_), 3) + y * y); double x = sqrt(pow(this->b_ / (3 * this->c_), 3) + y * y);
double resistance = exp(pow(x - y, 1 / 3.0) - pow(x + y, 1 / 3.0)); double resistance = exp(pow(x - y, 1 / 3.0) - pow(x + y, 1 / 3.0));