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hlw8012: fix constants for BL0937 (#1973)
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
This commit is contained in:
Adrián Panella
GitHub
parent
52d19fa43d
commit
d31040f5d8
4 changed files with 46 additions and 12 deletions
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@ -6,15 +6,32 @@ namespace hlw8012 {
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static const char *const TAG = "hlw8012";
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// valid for HLW8012 and CSE7759
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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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float reference_voltage = 0;
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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_.pulse_counter_setup(this->cf_pin_);
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this->cf1_store_.pulse_counter_setup(this->cf1_pin_);
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// Initialize multipliers
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if (this->sensor_model_ == HLW8012_SENSOR_MODEL_BL0937) {
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reference_voltage = 1.218f;
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this->power_multiplier_ =
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reference_voltage * reference_voltage * this->voltage_divider_ / this->current_resistor_ / 1721506.0f;
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this->current_multiplier_ = reference_voltage / this->current_resistor_ / 94638.0f;
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this->voltage_multiplier_ = reference_voltage * this->voltage_divider_ / 15397.0f;
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} else {
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// HLW8012 and CSE7759 have same reference specs
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reference_voltage = 2.43f;
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this->power_multiplier_ = reference_voltage * reference_voltage * this->voltage_divider_ / this->current_resistor_ *
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64.0f / 24.0f / HLW8012_CLOCK_FREQUENCY;
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this->current_multiplier_ = reference_voltage / this->current_resistor_ * 512.0f / 24.0f / HLW8012_CLOCK_FREQUENCY;
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this->voltage_multiplier_ = reference_voltage * this->voltage_divider_ * 256.0f / HLW8012_CLOCK_FREQUENCY;
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}
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}
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void HLW8012Component::dump_config() {
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ESP_LOGCONFIG(TAG, "HLW8012:");
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@ -49,25 +66,18 @@ void HLW8012Component::update() {
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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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float power = cf_hz * this->power_multiplier_;
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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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float current = cf1_hz * this->current_multiplier_;
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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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float voltage = cf1_hz * this->voltage_multiplier_;
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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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@ -81,7 +91,7 @@ void HLW8012Component::update() {
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if (this->energy_sensor_ != nullptr) {
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cf_total_pulses_ += raw_cf;
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float energy = cf_total_pulses_ * power_multiplier_micros / 3600 / 1000000.0f;
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float energy = cf_total_pulses_ * this->power_multiplier_ / 3600;
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this->energy_sensor_->publish_state(energy);
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}
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@ -10,6 +10,12 @@ namespace hlw8012 {
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enum HLW8012InitialMode { HLW8012_INITIAL_MODE_CURRENT = 0, HLW8012_INITIAL_MODE_VOLTAGE };
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enum HLW8012SensorModels {
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HLW8012_SENSOR_MODEL_HLW8012 = 0,
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HLW8012_SENSOR_MODEL_CSE7759,
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HLW8012_SENSOR_MODEL_BL0937
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};
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class HLW8012Component : public PollingComponent {
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public:
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void setup() override;
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@ -20,6 +26,7 @@ class HLW8012Component : public PollingComponent {
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void set_initial_mode(HLW8012InitialMode initial_mode) {
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current_mode_ = initial_mode == HLW8012_INITIAL_MODE_CURRENT;
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}
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void set_sensor_model(HLW8012SensorModels sensor_model) { sensor_model_ = sensor_model; }
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void set_change_mode_every(uint32_t change_mode_every) { change_mode_every_ = change_mode_every; }
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void set_current_resistor(float current_resistor) { current_resistor_ = current_resistor; }
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void set_voltage_divider(float voltage_divider) { voltage_divider_ = voltage_divider; }
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@ -38,6 +45,7 @@ class HLW8012Component : public PollingComponent {
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uint32_t change_mode_every_{8};
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float current_resistor_{0.001};
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float voltage_divider_{2351};
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HLW8012SensorModels sensor_model_{HLW8012_SENSOR_MODEL_HLW8012};
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uint64_t cf_total_pulses_{0};
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GPIOPin *sel_pin_;
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GPIOPin *cf_pin_;
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@ -48,6 +56,10 @@ class HLW8012Component : public PollingComponent {
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sensor::Sensor *current_sensor_{nullptr};
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sensor::Sensor *power_sensor_{nullptr};
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sensor::Sensor *energy_sensor_{nullptr};
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float voltage_multiplier_{0.0f};
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float current_multiplier_{0.0f};
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float power_multiplier_{0.0f};
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};
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} // namespace hlw8012
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@ -11,6 +11,7 @@ from esphome.const import (
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CONF_POWER,
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CONF_ENERGY,
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CONF_SEL_PIN,
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CONF_MODEL,
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CONF_VOLTAGE,
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CONF_VOLTAGE_DIVIDER,
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DEVICE_CLASS_CURRENT,
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@ -31,11 +32,19 @@ AUTO_LOAD = ["pulse_counter"]
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hlw8012_ns = cg.esphome_ns.namespace("hlw8012")
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HLW8012Component = hlw8012_ns.class_("HLW8012Component", cg.PollingComponent)
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HLW8012InitialMode = hlw8012_ns.enum("HLW8012InitialMode")
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HLW8012SensorModels = hlw8012_ns.enum("HLW8012SensorModels")
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INITIAL_MODES = {
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CONF_CURRENT: HLW8012InitialMode.HLW8012_INITIAL_MODE_CURRENT,
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CONF_VOLTAGE: HLW8012InitialMode.HLW8012_INITIAL_MODE_VOLTAGE,
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}
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MODELS = {
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"HLW8012": HLW8012SensorModels.HLW8012_SENSOR_MODEL_HLW8012,
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"CSE7759": HLW8012SensorModels.HLW8012_SENSOR_MODEL_CSE7759,
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"BL0937": HLW8012SensorModels.HLW8012_SENSOR_MODEL_BL0937,
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}
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CONF_CF1_PIN = "cf1_pin"
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CONF_CF_PIN = "cf_pin"
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CONFIG_SCHEMA = cv.Schema(
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@ -62,6 +71,7 @@ CONFIG_SCHEMA = cv.Schema(
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),
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cv.Optional(CONF_CURRENT_RESISTOR, default=0.001): cv.resistance,
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cv.Optional(CONF_VOLTAGE_DIVIDER, default=2351): cv.positive_float,
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cv.Optional(CONF_MODEL, default="HLW8012"): cv.enum(MODELS, upper=True),
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cv.Optional(CONF_CHANGE_MODE_EVERY, default=8): cv.All(
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cv.uint32_t, cv.Range(min=1)
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),
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@ -99,3 +109,4 @@ async def to_code(config):
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cg.add(var.set_voltage_divider(config[CONF_VOLTAGE_DIVIDER]))
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cg.add(var.set_change_mode_every(config[CONF_CHANGE_MODE_EVERY]))
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cg.add(var.set_initial_mode(INITIAL_MODES[config[CONF_INITIAL_MODE]]))
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cg.add(var.set_sensor_model(config[CONF_MODEL]))
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@ -514,6 +514,7 @@ sensor:
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voltage_divider: 2351
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change_mode_every: 16
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initial_mode: VOLTAGE
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model: hlw8012
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- platform: total_daily_energy
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power_id: hlw8012_power
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name: 'HLW8012 Total Daily Energy'
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