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[cse7761] bidirectional active power (#15162)

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Co-authored-by: Jonathan Swoboda <154711427+swoboda1337@users.noreply.github.com>
This commit is contained in:
Timothy
2026-04-22 19:11:18 +02:00
committed by GitHub
parent 5e715692d6
commit dcd103cec0
2 changed files with 9 additions and 8 deletions
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esphome/components/cse7761/cse7761.cpp
+8 -5
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@@ -204,24 +204,27 @@ void CSE7761Component::get_data_() {
value = this->read_(CSE7761_REG_RMSIA, 3);
this->data_.current_rms[0] = ((value >= 0x800000) || (value < 1600)) ? 0 : value; // No load threshold of 10mA
value = this->read_(CSE7761_REG_POWERPA, 4);
this->data_.active_power[0] = (0 == this->data_.current_rms[0]) ? 0 : ((uint32_t) abs((int) value));
// PowerPA is two's complement signed 32-bit per datasheet
this->data_.active_power[0] = (0 == this->data_.current_rms[0]) ? 0 : static_cast<int32_t>(value);
value = this->read_(CSE7761_REG_RMSIB, 3);
this->data_.current_rms[1] = ((value >= 0x800000) || (value < 1600)) ? 0 : value; // No load threshold of 10mA
value = this->read_(CSE7761_REG_POWERPB, 4);
this->data_.active_power[1] = (0 == this->data_.current_rms[1]) ? 0 : ((uint32_t) abs((int) value));
// PowerPB is two's complement signed 32-bit per datasheet
this->data_.active_power[1] = (0 == this->data_.current_rms[1]) ? 0 : static_cast<int32_t>(value);
// convert values and publish to sensors
float voltage = (float) this->data_.voltage_rms / this->coefficient_by_unit_(RMS_UC);
float voltage = static_cast<float>(this->data_.voltage_rms) / this->coefficient_by_unit_(RMS_UC);
if (this->voltage_sensor_ != nullptr) {
this->voltage_sensor_->publish_state(voltage);
}
for (uint8_t channel = 0; channel < 2; channel++) {
// Active power = PowerPA * PowerPAC * 1000 / 0x80000000
float active_power = (float) this->data_.active_power[channel] / this->coefficient_by_unit_(POWER_PAC); // W
float amps = (float) this->data_.current_rms[channel] / this->coefficient_by_unit_(RMS_IAC); // A
float active_power =
static_cast<float>(this->data_.active_power[channel]) / this->coefficient_by_unit_(POWER_PAC); // W
float amps = static_cast<float>(this->data_.current_rms[channel]) / this->coefficient_by_unit_(RMS_IAC); // A
ESP_LOGD(TAG, "Channel %d power %f W, current %f A", channel + 1, active_power, amps);
if (channel == 0) {
if (this->power_sensor_1_ != nullptr) {
esphome/components/cse7761/cse7761.h
+1 -3
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@@ -11,10 +11,8 @@ struct CSE7761DataStruct {
uint32_t frequency = 0;
uint32_t voltage_rms = 0;
uint32_t current_rms[2] = {0};
uint32_t energy[2] = {0};
uint32_t active_power[2] = {0};
int32_t active_power[2] = {0};
uint16_t coefficient[8] = {0};
uint8_t energy_update = 0;
bool ready = false;
};