CanSat/EmbeddedESP
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save some implementation

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This commit is contained in:
Bruno Rybársky
2025-04-22 14:27:07 +02:00
parent 35a11734e2
commit 9104869ecf
27 changed files with 1789 additions and 1734 deletions
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73
main/hw/ccs811.c
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@@ -10,6 +10,22 @@ i2c_device_config_t CCS811_DEV_CFG = {
i2c_master_dev_handle_t CCS811_DEV_HANDLE;
void ccs811_getStatus()
{
uint8_t errorID;
uint8_t status;
uint8_t hardwareVersion;
uint16_t version;
uint16_t bootVersion;
i2c_read_register_8(CCS811_DEV_HANDLE, CCS811_REG_STATUS, &status);
i2c_read_register_16(CCS811_DEV_HANDLE, CCS811_REG_FW_APP_VERSION, &version);
i2c_read_register_16(CCS811_DEV_HANDLE, CCS811_REG_FW_BOOT_VERSION, &bootVersion);
i2c_read_register_8(CCS811_DEV_HANDLE, CCS811_REG_HW_VERSION, &hardwareVersion);
i2c_read_register_8(CCS811_DEV_HANDLE, CCS811_REG_ERROR_ID, &errorID);
ESP_LOGW(TAG_CCS, "CCS811 status: %d, version: %d, boot version: %d, hardware version: %d, error ID: %d", status, version, bootVersion, hardwareVersion, errorID);
}
void ccs811_init()
{
ESP_ERROR_CHECK(i2c_master_bus_add_device(i2c0_bus_hdl, &CCS811_DEV_CFG, &CCS811_DEV_HANDLE));
@@ -17,30 +33,47 @@ void ccs811_init()
mcp23018_set_pin(MCP23018_DEV_HANDLE, MCP_CCS811_POWER, 1);
vTaskDelay(10 / portTICK_PERIOD_MS);
uint8_t reset_seq[4] = {0x11, 0xE5, 0x72, 0x8A};
i2c_write_register(CCS811_DEV_HANDLE, 0xFF, reset_seq, sizeof(reset_seq)); //Reset
i2c_write_register(CCS811_DEV_HANDLE, CCS811_REG_SW_RESET, reset_seq, sizeof(reset_seq)); // Reset
vTaskDelay(10 / portTICK_PERIOD_MS);
uint8_t status;
uint16_t version;
i2c_read_register_8(CCS811_DEV_HANDLE, 0x00, &status);
i2c_read_register_16(CCS811_DEV_HANDLE, 0x24, &version);
ESP_LOGW(TAG_CCS, "CCS811 status: %d, version: %d", status, version);
i2c_write_register(CCS811_DEV_HANDLE, 0xF4, NULL, 0); //start
vTaskDelay(10 / portTICK_PERIOD_MS);
i2c_write_register_8(CCS811_DEV_HANDLE, 0x10, 0x0001); // MODE 1 interrupts vypnuté
i2c_read_register_8(CCS811_DEV_HANDLE, 0x00, &status);
i2c_read_register_16(CCS811_DEV_HANDLE, 0x24, &version);
ESP_LOGW(TAG_CCS, "CCS811 status: %d, version: %d", status, version);
}
esp_err_t ccs811_get_data(uint16_t * eCO2, uint16_t * tvoc)
ccs811_getStatus();
i2c_write_register(CCS811_DEV_HANDLE, CCS811_REG_APP_START, NULL, 0); // start
vTaskDelay(10 / portTICK_PERIOD_MS);
i2c_write_register_8(CCS811_DEV_HANDLE, CCS811_REG_MEAS_MODE, 0x40); // MODE 1 interrupts vypnuté
ccs811_getStatus();
}
esp_err_t ccs811_get_data(uint16_t *eCO2, uint16_t *tvoc, uint8_t *current, uint16_t *rawData)
{
uint8_t ccsResult[8];
esp_err_t ret = i2c_read_register(CCS811_DEV_HANDLE, 0x05, ccsResult, 8);
uint8_t algResultData[8];
esp_err_t ret = i2c_read_register(CCS811_DEV_HANDLE, CCS811_REG_ALG_RESULT_DATA, algResultData, 8);
if (ret == ESP_OK)
{
*eCO2 = (((uint16_t)(ccsResult[0] & 0xFF)) << 8) | (ccsResult[1] & 0xFF);
*tvoc = (((uint16_t)(ccsResult[2] & 0xFF)) << 8) | (ccsResult[3] & 0xFF);
ESP_LOGI(TAG_CCS, "CCS Status: %d, Error %d", ccsResult[4], ccsResult[5]);
*eCO2 = ((uint16_t)algResultData[0] << 8) | algResultData[1];
*tvoc = ((uint16_t)algResultData[2] << 8) | algResultData[3];
*current = algResultData[6] >> 2;
*rawData = ((uint16_t)(algResultData[6] & 0x03) << 8) | algResultData[7];
ESP_LOGI(TAG_CCS, "CCS Status: %d, Error: %d", algResultData[4], algResultData[5]);
return ESP_OK;
}
return ret;
}
}
esp_err_t ccs811_set_env_data(float temperature, float humidity)
{
uint8_t envData[4];
// Convert humidity: %RH × 512 (rounding)
uint16_t hum_conv = (uint16_t)(humidity * 512.0f + 0.5f);
envData[0] = (hum_conv >> 8) & 0xFF;
envData[1] = hum_conv & 0xFF;
// Convert temperature: (°C + 25) × 512
uint16_t temp_conv = (uint16_t)((temperature + 25.0f) * 512.0f + 0.5f);
envData[2] = (temp_conv >> 8) & 0xFF;
envData[3] = temp_conv & 0xFF;
return i2c_write_register(CCS811_DEV_HANDLE, CCS811_REG_ENV_DATA, envData, 4);
}