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Implement min_power for component ac_dimmer using method trailing (#8472)

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This commit is contained in:
Vasil Kalchev
2025-04-22 13:39:21 +03:00
committed by GitHub
parent dbb7cbed3e
commit 6ff180152a
1 changed files with 3 additions and 2 deletions
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5
esphome/components/ac_dimmer/ac_dimmer.cpp
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@@ -114,13 +114,14 @@ void IRAM_ATTR HOT AcDimmerDataStore::gpio_intr() {
// fully off, disable output immediately
this->gate_pin.digital_write(false);
} else {
auto min_us = this->cycle_time_us * this->min_power / 1000;
if (this->method == DIM_METHOD_TRAILING) {
this->enable_time_us = 1; // cannot be 0
this->disable_time_us = std::max((uint32_t) 10, this->value * this->cycle_time_us / 65535);
// calculate time until disable in µs with integer arithmetic and take into account min_power
this->disable_time_us = std::max((uint32_t) 10, this->value * (this->cycle_time_us - min_us) / 65535 + min_us);
} else {
// calculate time until enable in µs: (1.0-value)*cycle_time, but with integer arithmetic
// also take into account min_power
auto min_us = this->cycle_time_us * this->min_power / 1000;
this->enable_time_us = std::max((uint32_t) 1, ((65535 - this->value) * (this->cycle_time_us - min_us)) / 65535);
if (this->method == DIM_METHOD_LEADING_PULSE) {