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[ltr390] Move calculation to allow dynamic setting of gain and resolution (#8343)

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This commit is contained in:
Jesse Hills 2025-03-03 15:35:52 +13:00
parent 903d033e0f
commit db666e44a7
2 changed files with 7 additions and 8 deletions
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14
esphome/components/ltr390/ltr390.cpp
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@ -1,7 +1,7 @@
#include "ltr390.h" #include "ltr390.h"
#include <bitset>
#include "esphome/core/hal.h" #include "esphome/core/hal.h"
#include "esphome/core/log.h" #include "esphome/core/log.h"
#include <bitset>
namespace esphome { namespace esphome {
namespace ltr390 { namespace ltr390 {
@ -91,7 +91,12 @@ void LTR390Component::read_uvs_() {
uint32_t uv = *val; uint32_t uv = *val;
if (this->uvi_sensor_ != nullptr) { if (this->uvi_sensor_ != nullptr) {
this->uvi_sensor_->publish_state((uv / this->sensitivity_uv_) * this->wfac_); // Set sensitivity by linearly scaling against known value in the datasheet
float gain_scale_uv = GAINVALUES[this->gain_uv_] / GAIN_MAX;
float intg_scale_uv = (RESOLUTIONVALUE[this->res_uv_] * 100) / INTG_MAX;
float sensitivity_uv = SENSITIVITY_MAX * gain_scale_uv * intg_scale_uv;
this->uvi_sensor_->publish_state((uv / sensitivity_uv) * this->wfac_);
} }
if (this->uv_sensor_ != nullptr) { if (this->uv_sensor_ != nullptr) {
@ -166,11 +171,6 @@ void LTR390Component::setup() {
return; return;
} }
// Set sensitivity by linearly scaling against known value in the datasheet
float gain_scale_uv = GAINVALUES[this->gain_uv_] / GAIN_MAX;
float intg_scale_uv = (RESOLUTIONVALUE[this->res_uv_] * 100) / INTG_MAX;
this->sensitivity_uv_ = SENSITIVITY_MAX * gain_scale_uv * intg_scale_uv;
// Set sensor read state // Set sensor read state
this->reading_ = false; this->reading_ = false;

1
esphome/components/ltr390/ltr390.h
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@ -77,7 +77,6 @@ class LTR390Component : public PollingComponent, public i2c::I2CDevice {
LTR390GAIN gain_uv_; LTR390GAIN gain_uv_;
LTR390RESOLUTION res_als_; LTR390RESOLUTION res_als_;
LTR390RESOLUTION res_uv_; LTR390RESOLUTION res_uv_;
float sensitivity_uv_;
float wfac_; float wfac_;
sensor::Sensor *light_sensor_{nullptr}; sensor::Sensor *light_sensor_{nullptr};