ble logic
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@ -7,9 +7,13 @@
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#include "esp_gatts_api.h"
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#include "esp_gatt_common_api.h"
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#include "scd4x_data.h"
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#define ADV_CONFIG_FLAG (1 << 0)
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#define SCAN_RSP_CONFIG_FLAG (1 << 1)
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static configuration_data_t* main_app_conf;
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static uint8_t adv_config_done = 0;
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static struct gatts_profile_inst env_sense_profile_tab[PROFILE_NUM] = {
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@ -35,7 +39,7 @@ static esp_ble_adv_data_t env_sense_adv_data = {
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.include_txpower = true,
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.min_interval = 0x0006,
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.max_interval = 0x0010,
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.appearance = 0x00,
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.appearance = 0x054A, // Carbon Dioxide Sensor
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.manufacturer_len = 0, //TEST_MANUFACTURER_DATA_LEN,
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.p_manufacturer_data = NULL, //&test_manufacturer[0],
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.service_data_len = 0,
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@ -44,6 +48,22 @@ static esp_ble_adv_data_t env_sense_adv_data = {
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.p_service_uuid = service_uuid,
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.flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT),
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};
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static esp_ble_adv_data_t scan_rsp_data = {
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.set_scan_rsp = true,
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.include_name = true,
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.include_txpower = true,
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.min_interval = 0x0006,
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.max_interval = 0x0010,
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.appearance = 0x054A,
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.manufacturer_len = 0, //TEST_MANUFACTURER_DATA_LEN,
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.p_manufacturer_data = NULL, //&test_manufacturer[0],
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.service_data_len = 0,
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.p_service_data = NULL,
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.service_uuid_len = sizeof(service_uuid),
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.p_service_uuid = service_uuid,
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.flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT),
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};
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static esp_ble_adv_params_t adv_params = {
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.adv_int_min = 0x20,
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@ -57,19 +77,43 @@ static esp_ble_adv_params_t adv_params = {
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static const uint16_t primary_service_uuid = ESP_GATT_UUID_PRI_SERVICE;
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static const uint16_t env_service_uuid = ENVIRONMENTAL_SENSING_UUID;
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static const uint16_t ES_measurement_uuid = 0x290C;
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static const uint16_t char_dec_uuid = ESP_GATT_UUID_CHAR_DECLARE;
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static const uint16_t char_co2_uuid = 0x0c39;
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static const uint16_t char_co2_uuid = 0x0c39; // random
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static const uint16_t char_temp_uuid = 0x2A6E;
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static const uint16_t char_hum_uuid = 0x2A6F;
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static const uint16_t char_prop_read = ESP_GATT_CHAR_PROP_BIT_READ;
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//static const uint8_t char_prop_read_write_notify = ESP_GATT_CHAR_PROP_BIT_WRITE | ESP_GATT_CHAR_PROP_BIT_READ | ESP_GATT_CHAR_PROP_BIT_NOTIFY;
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static const uint8_t CO2_char_val[]={
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static const uint8_t CO2_char_descr[]={
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0x00, 0x00, // Flags (RFU)
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0x01, // Sampling function : Instantaneous
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30, // Measurement period : 30s TODO
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30, // Update Interval : 30s TODO
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0x1E, 0x00, 0x00, // Measurement period : 30s TODO
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0x1E, 0x00, 0x00, // Update Interval : 30s TODO
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0x01, // Application : Air
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0xFF, // Mesurement Uncertainty : TODO
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};
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static const uint8_t temp_char_descr[]={
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0x00, 0x00, // Flags (RFU)
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0x01, // Sampling function : Instantaneous
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0x1E, 0x00, 0x00, // Measurement period : 30s TODO
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0x1E, 0x00, 0x00, // Update Interval : 30s TODO
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0x01, // Application : Air
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0xFF, // Mesurement Uncertainty : TODO
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};
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static const uint8_t hum_char_descr[]={
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0x00, 0x00, // Flags (RFU)
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0x01, // Sampling function : Instantaneous
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0x1E, 0x00, 0x00, // Measurement period : 30s TODO
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0x1E, 0x00, 0x00, // Update Interval : 30s TODO
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0x01, // Application : Air
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0xFF, // Mesurement Uncertainty : TODO
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};
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static const uint16_t CO2_value = 1260;
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static const int16_t temp_value = 1560;
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static const uint16_t hum_value = 4200;
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static const esp_gatts_attr_db_t gatt_db[ENV_IDX_NB] =
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{
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@ -85,14 +129,45 @@ static const esp_gatts_attr_db_t gatt_db[ENV_IDX_NB] =
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/* Characteristic Value */
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[CO2_IDX_MEAS_VAL] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&char_co2_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
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GATTS_CHAR_VAL_LEN_MAX, sizeof(CO2_char_val), (uint8_t *)&CO2_char_val}},
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{{ESP_GATT_RSP_BY_APP}, {ESP_UUID_LEN_16, (uint8_t *)&char_co2_uuid, ESP_GATT_PERM_READ,
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GATTS_CHAR_VAL_LEN_MAX, sizeof(CO2_value), (uint8_t *)&CO2_value}},
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/* Client Characteristic Configuration Descriptor */
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/*[IDX_CHAR_CFG_A] = TODO
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_client_config_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
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sizeof(uint16_t), sizeof(heart_measurement_ccc), (uint8_t *)heart_measurement_ccc}},
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*/
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[CO2_IDX_MEAS_DESC] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&ES_measurement_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
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sizeof(CO2_char_descr), sizeof(CO2_char_descr), (uint8_t *)CO2_char_descr}},
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/* Characteristic Declaration */
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[T_IDX_MEAS_CHAR] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&char_dec_uuid, ESP_GATT_PERM_READ,
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CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read}},
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/* Characteristic Value */
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[T_IDX_MEAS_VAL] =
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{{ESP_GATT_RSP_BY_APP}, {ESP_UUID_LEN_16, (uint8_t *)&char_temp_uuid, ESP_GATT_PERM_READ,
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GATTS_CHAR_VAL_LEN_MAX, sizeof(temp_value), (uint8_t *)&temp_value}},
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/* Client Characteristic Configuration Descriptor */
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[T_IDX_MEAS_DESC] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&ES_measurement_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
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sizeof(temp_char_descr), sizeof(temp_char_descr), (uint8_t *)temp_char_descr}},
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/* Characteristic Declaration */
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[HUM_IDX_MEAS_CHAR] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&char_dec_uuid, ESP_GATT_PERM_READ,
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CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read}},
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/* Characteristic Value */
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[HUM_IDX_MEAS_VAL] =
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{{ESP_GATT_RSP_BY_APP}, {ESP_UUID_LEN_16, (uint8_t *)&char_hum_uuid, ESP_GATT_PERM_READ,
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GATTS_CHAR_VAL_LEN_MAX, sizeof(hum_value), (uint8_t *)&hum_value}},
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/* Client Characteristic Configuration Descriptor */
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[HUM_IDX_MEAS_DESC] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&ES_measurement_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
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sizeof(hum_char_descr), sizeof(hum_char_descr), (uint8_t *)hum_char_descr}},
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};
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@ -166,12 +241,35 @@ void gatts_profile_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts
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ESP_ERROR_CHECK(esp_ble_gap_set_device_name(device_name));
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ESP_ERROR_CHECK(esp_ble_gap_config_adv_data(&env_sense_adv_data));
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adv_config_done |= ADV_CONFIG_FLAG;
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//ESP_ERROR_CHECK(esp_ble_gap_config_adv_data(&scan_rsp_data));
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//adv_config_done |= SCAN_RSP_CONFIG_FLAG;
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ESP_ERROR_CHECK(esp_ble_gap_config_adv_data(&scan_rsp_data));
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adv_config_done |= SCAN_RSP_CONFIG_FLAG;
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ESP_ERROR_CHECK(esp_ble_gatts_create_attr_tab(gatt_db, gatts_if, ENV_IDX_NB, ENVIRONMENTAL_SENSING_IDX));
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break;
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case ESP_GATTS_READ_EVT:
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ESP_LOGI("bt", "read event NI");
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ESP_LOGI("bt", "read event");
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esp_gatt_rsp_t rsp;
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memset(&rsp, 0, sizeof(esp_gatt_rsp_t));
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rsp.attr_value.handle = param->read.handle;
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if(param->read.handle == env_handle_table[CO2_IDX_MEAS_VAL]){
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uint16_t co2 = main_app_conf->measure->co2;
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rsp.attr_value.len = sizeof(co2);
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memcpy(rsp.attr_value.value, &co2, sizeof(co2));
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}
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else if(param->read.handle == env_handle_table[T_IDX_MEAS_VAL]){
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int32_t raw_temp = main_app_conf->measure->temperature;
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int16_t temperature = raw_temp/10;
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ESP_LOGI("bt", "temp %i", temperature);
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rsp.attr_value.len = sizeof(temperature);
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memcpy(rsp.attr_value.value, &temperature, sizeof(temperature));
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}
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else if(param->read.handle == env_handle_table[HUM_IDX_MEAS_VAL]){
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int32_t raw_hum = main_app_conf->measure->humidity;
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int16_t hum = raw_hum/10;
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rsp.attr_value.len = sizeof(hum);
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memcpy(rsp.attr_value.value, &hum, sizeof(hum));
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}
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esp_ble_gatts_send_response(gatts_if, param->read.conn_id, param->read.trans_id, ESP_GATT_OK, &rsp);
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break;
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case ESP_GATTS_WRITE_EVT:
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ESP_LOGI("bt", "write event NI");
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@ -221,8 +319,9 @@ void gatts_profile_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts
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}
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}
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void initBle(void){
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void initBle(configuration_data_t* main_conf){
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ESP_LOGI("initBle", "starting bluetooth");
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main_app_conf = main_conf;
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esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
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ESP_ERROR_CHECK(esp_bt_controller_init(&bt_cfg));
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ESP_ERROR_CHECK(esp_bt_controller_enable(ESP_BT_MODE_BLE));
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@ -1,3 +1,3 @@
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idf_component_register(SRCS "BTlib.c"
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INCLUDE_DIRS "include"
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REQUIRES bt)
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REQUIRES bt configuration sensirion_i2c_scd4x)
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@ -1,6 +1,8 @@
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#include "esp_gap_ble_api.h"
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#include "esp_gatts_api.h"
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#include "configuration.h"
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#define C_WL_MODE_BLE 0b100
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#define SENSOR_BLE_APP_ID 0x69
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@ -16,12 +18,15 @@ enum{
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ENV_IDX_SVC,
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CO2_IDX_MEAS_CHAR,
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CO2_IDX_MEAS_VAL,
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CO2_IDX_MEAS_DESC,
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T_IDX_MEAS_CHAR,
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T_IDX_MEAS_VAL,
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T_IDX_MEAS_DESC,
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HUM_IDX_MEAS_CHAR,
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HUM_IDX_MEAS,
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HUM_IDX_MEAS_VAL,
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HUM_IDX_MEAS_DESC,
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ENV_IDX_NB,
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};
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@ -46,4 +51,4 @@ void gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp
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void gatts_profile_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t* param);
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void initBle(void);
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void initBle(configuration_data_t* main_conf);
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@ -58,7 +58,7 @@ void app_main(void){
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wifi_init_softap(conf->wifi_config);
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break;
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case C_WL_MODE_BLE:
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initBle();
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initBle(conf);
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break;
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}
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