mirror of
https://github.com/Threnklyn/esphome-dev.git
synced 2026-05-25 07:08:30 +02:00
Otto Winter
8e75980ebd
* Cleanup dashboard JS * Add vscode * Save start_mark/end_mark * Updates * Updates * Remove need for cv.nameable It's a bit hacky but removes so much bloat from integrations * Add enum helper * Document APIs, and Improvements * Fixes * Fixes * Update PULL_REQUEST_TEMPLATE.md * Updates * Updates * Updates
92 lines
3.6 KiB
C++
92 lines
3.6 KiB
C++
#include "hlw8012.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace hlw8012 {
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static const char *TAG = "hlw8012";
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static const uint32_t HLW8012_CLOCK_FREQUENCY = 3579000;
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static const float HLW8012_REFERENCE_VOLTAGE = 2.43f;
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void HLW8012Component::setup() {
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ESP_LOGCONFIG(TAG, "Setting up HLW8012...");
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this->sel_pin_->setup();
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this->sel_pin_->digital_write(this->current_mode_);
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this->cf_store_.setup(this->cf_pin_);
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this->cf1_store_.setup(this->cf1_pin_);
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}
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void HLW8012Component::dump_config() {
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ESP_LOGCONFIG(TAG, "HLW8012:");
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LOG_PIN(" SEL Pin: ", this->sel_pin_)
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LOG_PIN(" CF Pin: ", this->cf_pin_)
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LOG_PIN(" CF1 Pin: ", this->cf1_pin_)
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ESP_LOGCONFIG(TAG, " Change measurement mode every %u", this->change_mode_every_);
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ESP_LOGCONFIG(TAG, " Current resistor: %.1f mΩ", this->current_resistor_ * 1000.0f);
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ESP_LOGCONFIG(TAG, " Voltage Divider: %.1f", this->voltage_divider_);
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LOG_UPDATE_INTERVAL(this)
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LOG_SENSOR(" ", "Voltage", this->voltage_sensor_)
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LOG_SENSOR(" ", "Current", this->current_sensor_)
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LOG_SENSOR(" ", "Power", this->power_sensor_)
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}
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float HLW8012Component::get_setup_priority() const { return setup_priority::DATA; }
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void HLW8012Component::update() {
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// HLW8012 has 50% duty cycle
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const uint32_t last_rise_cf = this->cf_store_.get_last_rise();
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const uint32_t last_rise_cf1 = this->cf1_store_.get_last_rise();
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const uint32_t now = micros();
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float full_cycle_cf = this->cf_store_.get_pulse_width_s() * 2;
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float full_cycle_cf1 = this->cf1_store_.get_pulse_width_s() * 2;
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float cf_hz = 0.0f, cf1_hz = 0.0f;
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auto update_interval_micros = static_cast<uint32_t>(this->update_interval_ * 1e3f);
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if (full_cycle_cf != 0.0f && now - last_rise_cf < update_interval_micros * 3)
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cf_hz = 1.0f / full_cycle_cf;
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if (full_cycle_cf1 != 0.0f && now - last_rise_cf1 < update_interval_micros * 3)
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cf1_hz = 1.0f / full_cycle_cf1;
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if (this->nth_value_++ < 2) {
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return;
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}
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const float v_ref_squared = HLW8012_REFERENCE_VOLTAGE * HLW8012_REFERENCE_VOLTAGE;
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const float power_multiplier_micros =
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64000000.0f * v_ref_squared * this->voltage_divider_ / this->current_resistor_ / 24.0f / HLW8012_CLOCK_FREQUENCY;
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float power = cf_hz * power_multiplier_micros / 1000000.0f;
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if (this->change_mode_at_ != 0) {
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// Only read cf1 after one cycle. Apparently it's quite unstable after being changed.
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if (this->current_mode_) {
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const float current_multiplier_micros =
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512000000.0f * HLW8012_REFERENCE_VOLTAGE / this->current_resistor_ / 24.0f / HLW8012_CLOCK_FREQUENCY;
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float current = cf1_hz * current_multiplier_micros / 1000000.0f;
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ESP_LOGD(TAG, "Got power=%.1fW, current=%.1fA", power, current);
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if (this->current_sensor_ != nullptr) {
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this->current_sensor_->publish_state(current);
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}
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} else {
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const float voltage_multiplier_micros =
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256000000.0f * HLW8012_REFERENCE_VOLTAGE * this->voltage_divider_ / HLW8012_CLOCK_FREQUENCY;
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float voltage = cf1_hz * voltage_multiplier_micros / 1000000.0f;
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ESP_LOGD(TAG, "Got power=%.1fW, voltage=%.1fV", power, voltage);
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if (this->voltage_sensor_ != nullptr) {
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this->voltage_sensor_->publish_state(voltage);
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}
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}
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}
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if (this->power_sensor_ != nullptr) {
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this->power_sensor_->publish_state(power);
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}
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if (this->change_mode_at_++ == this->change_mode_every_) {
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this->current_mode_ = !this->current_mode_;
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ESP_LOGV(TAG, "Changing mode to %s mode", this->current_mode_ ? "CURRENT" : "VOLTAGE");
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this->change_mode_at_ = 0;
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this->sel_pin_->digital_write(this->current_mode_);
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}
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}
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} // namespace hlw8012
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} // namespace esphome
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