alexey.zholtikov/zh_bh1750
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This commit is contained in:
Alexey Zholtikov
2024-06-16 15:16:38 +03:00
parent f77318150c
commit 1253d6a1ae
3 changed files with 39 additions and 5 deletions
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31
zh_bh1750.c
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@ -84,6 +84,7 @@ esp_err_t zh_bh1750_read(float *data)
ESP_LOGE(TAG, "BH1750 read fail. BH1750 not initialized.");
return ESP_ERR_NOT_FOUND;
}
REPEATE:
esp_err_t esp_err = ESP_OK;
uint8_t sensor_data[2] = {0};
if (_init_config.work_mode == CONTINUOUSLY)
@ -132,13 +133,39 @@ READ:
ESP_LOGE(TAG, "BH1750 read fail. I2C driver error.");
return esp_err;
}
uint32_t raw_data = sensor_data[0] << 8 | sensor_data[1];
if (raw_data == 65536 || raw_data == 0)
{
ESP_LOGW(TAG, "BH1750 read error. Sensitivity adjustment required. Current sensivity level %d", _sensivity);
}
if (_init_config.auto_adjust == true)
{
printf("RAW data %ld\n", raw_data);
printf("Sensivity %d\n", _sensivity);
if (raw_data == 65536 && _sensivity > 31)
{
if (zh_bh1750_adjust(_sensivity - 1) == ESP_OK)
{
--_sensivity;
goto REPEATE;
}
}
if (raw_data == 0 && _sensivity < 254)
{
if (zh_bh1750_adjust(_sensivity + 1) == ESP_OK)
{
++_sensivity;
goto REPEATE;
}
}
}
if (_init_config.operation_mode == HIGH_RESOLUTION_2)
{
*data = (sensor_data[0] << 8 | sensor_data[1]) * (1 / 1.2 * (69.0 / _sensivity) / 2);
*data = raw_data * (1 / 1.2 * (69.0 / _sensivity) / 2);
}
else
{
*data = (sensor_data[0] << 8 | sensor_data[1]) * (1 / 1.2 * (69.0 / _sensivity));
*data = raw_data * (1 / 1.2 * (69.0 / _sensivity));
}
ESP_LOGI(TAG, "BH1750 read success.");
return ESP_OK;