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scd30: Allow setting temperature offset (#1400)
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0ea41e2f71
commit
b3169deda7
4 changed files with 17 additions and 0 deletions
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@ -51,6 +51,14 @@ void SCD30Component::setup() {
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return;
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}
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if (this->temperature_offset_ != 0) {
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if (!this->write_command_(SCD30_CMD_TEMPERATURE_OFFSET, (uint16_t)(temperature_offset_ * 100.0))) {
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ESP_LOGE(TAG, "Sensor SCD30 error setting temperature offset.");
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this->error_code_ = MEASUREMENT_INIT_FAILED;
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this->mark_failed();
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return;
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}
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}
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// The start measurement command disables the altitude compensation, if any, so we only set it if it's turned on
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if (this->altitude_compensation_ != 0xFFFF) {
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if (!this->write_command_(SCD30_CMD_ALTITUDE_COMPENSATION, altitude_compensation_)) {
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@ -95,6 +103,7 @@ void SCD30Component::dump_config() {
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}
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ESP_LOGCONFIG(TAG, " Automatic self calibration: %s", ONOFF(this->enable_asc_));
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ESP_LOGCONFIG(TAG, " Ambient pressure compensation: %dmBar", this->ambient_pressure_compensation_);
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ESP_LOGCONFIG(TAG, " Temperature offset: %.2f °C", this->temperature_offset_);
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LOG_UPDATE_INTERVAL(this);
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LOG_SENSOR(" ", "CO2", this->co2_sensor_);
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LOG_SENSOR(" ", "Temperature", this->temperature_sensor_);
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@ -18,6 +18,7 @@ class SCD30Component : public PollingComponent, public i2c::I2CDevice {
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void set_ambient_pressure_compensation(float pressure) {
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ambient_pressure_compensation_ = (uint16_t)(pressure * 1000);
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}
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void set_temperature_offset(float offset) { temperature_offset_ = offset; }
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void setup() override;
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void update() override;
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@ -39,6 +40,7 @@ class SCD30Component : public PollingComponent, public i2c::I2CDevice {
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bool enable_asc_{true};
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uint16_t altitude_compensation_{0xFFFF};
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uint16_t ambient_pressure_compensation_{0x0000};
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float temperature_offset_{0.0};
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sensor::Sensor *co2_sensor_{nullptr};
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sensor::Sensor *humidity_sensor_{nullptr};
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@ -14,6 +14,7 @@ SCD30Component = scd30_ns.class_('SCD30Component', cg.PollingComponent, i2c.I2CD
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CONF_AUTOMATIC_SELF_CALIBRATION = 'automatic_self_calibration'
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CONF_ALTITUDE_COMPENSATION = 'altitude_compensation'
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CONF_AMBIENT_PRESSURE_COMPENSATION = 'ambient_pressure_compensation'
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CONF_TEMPERATURE_OFFSET = 'temperature_offset'
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def remove_altitude_suffix(value):
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@ -31,6 +32,7 @@ CONFIG_SCHEMA = cv.Schema({
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cv.int_range(min=0, max=0xFFFF,
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max_included=False)),
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cv.Optional(CONF_AMBIENT_PRESSURE_COMPENSATION, default=0): cv.pressure,
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cv.Optional(CONF_TEMPERATURE_OFFSET): cv.temperature,
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}).extend(cv.polling_component_schema('60s')).extend(i2c.i2c_device_schema(0x61))
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@ -46,6 +48,9 @@ def to_code(config):
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if CONF_AMBIENT_PRESSURE_COMPENSATION in config:
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cg.add(var.set_ambient_pressure_compensation(config[CONF_AMBIENT_PRESSURE_COMPENSATION]))
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if CONF_TEMPERATURE_OFFSET in config:
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cg.add(var.set_temperature_offset(config[CONF_TEMPERATURE_OFFSET]))
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if CONF_CO2 in config:
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sens = yield sensor.new_sensor(config[CONF_CO2])
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cg.add(var.set_co2_sensor(sens))
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@ -621,6 +621,7 @@ sensor:
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automatic_self_calibration: true
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altitude_compensation: 10m
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ambient_pressure_compensation: 961mBar
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temperature_offset: 4.2C
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- platform: sgp30
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eco2:
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name: 'Workshop eCO2'
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