internal_temperature_bk72xx.cpp

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#ifdef USE_BK72XX
 
#include "esphome/core/log.h"
#include "internal_temperature.h"
 
extern "C" {
uint32_t temp_single_get_current_temperature(uint32_t *temp_value);
}
 
namespace esphome::internal_temperature {
 
static const char *const TAG = "internal_temperature.bk72xx";
 
void InternalTemperatureSensor::update() {
  float temperature = NAN;
  bool success = false;
 
  uint32_t raw, result;
  result = temp_single_get_current_temperature(&raw);
  success = (result == 0);
#if defined(USE_LIBRETINY_VARIANT_BK7231N)
  temperature = raw * -0.38f + 156.0f;
#elif defined(USE_LIBRETINY_VARIANT_BK7231T)
  temperature = raw * 0.04f;
#else   // USE_LIBRETINY_VARIANT
  temperature = raw * 0.128f;
#endif  // USE_LIBRETINY_VARIANT
 
  if (success && std::isfinite(temperature)) {
    this->publish_state(temperature);
  } else {
    ESP_LOGD(TAG, "Ignoring invalid temperature (success=%d, value=%.1f)", success, temperature);
    if (!this->has_state()) {
      this->publish_state(NAN);
    }
  }
}
 
}  // namespace esphome::internal_temperature
 
#endif  // USE_BK72XX