<debug> nrf_sdh: State request: 0x00000000
<debug> nrf_sdh: Notify observer 0x00036434 => ready
<debug> nrf_sdh: State change: 0x00000000
<debug> nrf_sdh: State change: 0x00000001
<debug> nrf_sdh_ble: RAM starts at 0x200029A0
<info> app: Heart Rate collector example started.
<info> app: Starting scan.
<debug> nrf_sdh_ble: BLE event: 0x1D.
<info> app: UUID match send connect_request.
<debug> nrf_sdh_ble: BLE event: 0x10.
<debug> ble_gatt: Requesting to update ATT MTU to 247 bytes on connection 0x0.
<debug> ble_gatt: Requesting to update data length to 251 on connection 0x0.
<info> app: Connected to a previously bonded device.
<info> app: Connected.
<debug> ble_db_disc: Starting discovery of service with UUID 0x180D on connection handle 0x0.
<debug> nrf_sdh_ble: BLE event: 0x3A.
<debug> ble_gatt: ATT MTU updated to 232 bytes on connection 0x0 (response).
<info> app: GATT ATT MTU on connection 0x0 changed to 232.
<debug> ble_db_disc: Starting discovery of service with UUID 0x180D on connection handle 0x0.
<debug> nrf_sdh_ble: BLE event: 0x24.
<debug> ble_gatt: Data length updated to 236 on connection 0x0.
<debug> ble_gatt: max_rx_octets: 236
<debug> ble_gatt: max_tx_octets: 236
<debug> ble_gatt: max_rx_time: 2120
<debug> ble_gatt: max_tx_time: 2120
<info> app: Data length for connection 0x0 updated to 236.
<debug> nrf_sdh_ble: BLE event: 0x30.
<debug> ble_db_disc: Found service UUID 0x180D.
<debug> nrf_sdh_ble: BLE event: 0x23.
<debug> ble_gatt: Peer on connection 0x0 requested a data length of 236 bytes.
<debug> ble_gatt: Updating data length to 236 bytes on connection 0x0.
<debug> nrf_sdh_ble: BLE event: 0x24.
<debug> ble_gatt: Data length updated to 236 on connection 0x0.
<debug> ble_gatt: max_rx_octets: 236
<debug> ble_gatt: max_tx_octets: 236
<debug> ble_gatt: max_rx_time: 2120
<debug> ble_gatt: max_tx_time: 2000
<info> app: Data length for connection 0x0 updated to 236.
<debug> nrf_sdh_ble: BLE event: 0x32.
<debug> nrf_sdh_ble: BLE event: 0x32.
<debug> nrf_sdh_ble: BLE event: 0x33.
<debug> ble_db_disc: Discovery of service with UUID 0x180D completed with success on connection handle 0x0.
<debug> ble_db_disc: Starting discovery of service with UUID 0x180F on connection handle 0x0.
<debug> nrf_sdh_ble: BLE event: 0x30.
<debug> ble_db_disc: Found service UUID 0x180F.
<debug> nrf_sdh_ble: BLE event: 0x32.
<debug> nrf_sdh_ble: BLE event: 0x32.
<debug> nrf_sdh_ble: BLE event: 0x33.
<debug> ble_db_disc: Discovery of service with UUID 0x180F completed with success on connection handle 0x0.
<debug> ble_hrs_c: Heart Rate Service discovered at peer.
<debug> app: Heart rate service discovered.
<debug> ble_hrs_c: Configuring CCCD. CCCD Handle = 38, Connection Handle = 0
<debug> ble_bas_c: Battery Service discovery failure at peer. 
<debug> ble_bas_c: Battery Service discovered at peer.
<debug> app: Battery Service discovered. Reading battery level.
<debug> ble_bas_c: SD Read/Write API returns error. This message sending will be attempted again..
<debug> app: Enabling Battery Level Notification.
<debug> ble_bas_c: Configuring CCCD. CCCD Handle = 42, Connection Handle = 0
<debug> ble_bas_c: SD Read/Write API returns error. This message sending will be attempted again..
<debug> nrf_sdh_ble: BLE event: 0x38.
<debug> ble_bas_c: SD Read/Write API returns Success..
<debug> nrf_sdh_ble: BLE event: 0x1A.
<info> app: Connection secured: role: 2, conn_handle: 0x0, procedure: 0.
<debug> nrf_sdh_ble: BLE event: 0x39.
<debug> ble_hrs_c: Received HVX on link 0x25, hrm_handle 0x25
<info> app: Heart Rate = 0.
<debug> nrf_sdh_ble: BLE event: 0x36.
<info> app: Battery Level Read as 60 %.
<debug> ble_bas_c: SD Read/Write API returns Success..
<debug> nrf_sdh_ble: BLE event: 0x1A.
<info> app: Connection secured: role: 2, conn_handle: 0x0, procedure: 0.
<debug> nrf_sdh_ble: BLE event: 0x38.
<debug> nrf_sdh_ble: BLE event: 0x39.
<debug> ble_hrs_c: Received HVX on link 0x25, hrm_handle 0x25
<info> app: Heart Rate = 0.
<debug> nrf_sdh_ble: BLE event: 0x39.
<debug> ble_hrs_c: Received HVX on link 0x25, hrm_handle 0x25
<info> app: Heart Rate = 92.
<debug> nrf_sdh_ble: BLE event: 0x39.
<debug> ble_hrs_c: Received HVX on link 0x25, hrm_handle 0x25
<info> app: Heart Rate = 92.
<debug> nrf_sdh_ble: BLE event: 0x39.
<debug> ble_hrs_c: Received HVX on link 0x25, hrm_handle 0x25
<info> app: Heart Rate = 92.
<debug> nrf_sdh_ble: BLE event: 0x39.
<debug> ble_hrs_c: Received HVX on link 0x25, hrm_handle 0x25
<info> app: Heart Rate = 0.
<debug> nrf_sdh_ble: BLE event: 0x11.
<info> app: Disconnected, reason 0x13.
<info> app: Starting scan.
<debug> nrf_sdh_ble: BLE event: 0x1D.
<info> app: UUID match send connect_request.
<debug> nrf_sdh_ble: BLE event: 0x10.
<debug> ble_gatt: Requesting to update ATT MTU to 247 bytes on connection 0x0.
<debug> ble_gatt: Requesting to update data length to 251 on connection 0x0.
<info> app: Connected to a previously bonded device.
<info> app: Connected.
<debug> ble_db_disc: Starting discovery of service with UUID 0x180D on connection handle 0x0.
<debug> nrf_sdh_ble: BLE event: 0x3A.
<debug> ble_gatt: ATT MTU updated to 232 bytes on connection 0x0 (response).
<info> app: GATT ATT MTU on connection 0x0 changed to 232.
<debug> ble_db_disc: Starting discovery of service with UUID 0x180D on connection handle 0x0.
<debug> nrf_sdh_ble: BLE event: 0x24.
<debug> ble_gatt: Data length updated to 236 on connection 0x0.
<debug> ble_gatt: max_rx_octets: 236
<debug> ble_gatt: max_tx_octets: 236
<debug> ble_gatt: max_rx_time: 2120
<debug> ble_gatt: max_tx_time: 2120
<info> app: Data length for connection 0x0 updated to 236.
<debug> nrf_sdh_ble: BLE event: 0x23.
<debug> ble_gatt: Peer on connection 0x0 requested a data length of 236 bytes.
<debug> ble_gatt: Updating data length to 236 bytes on connection 0x0.
<debug> nrf_sdh_ble: BLE event: 0x24.
<debug> ble_gatt: Data length updated to 236 on connection 0x0.
<debug> ble_gatt: max_rx_octets: 236
<debug> ble_gatt: max_tx_octets: 236
<debug> ble_gatt: max_rx_time: 2120
<debug> ble_gatt: max_tx_time: 2000
<info> app: Data length for connection 0x0 updated to 236.
<debug> nrf_sdh_ble: BLE event: 0x30.
<debug> ble_db_disc: Found service UUID 0x180D.
<debug> nrf_sdh_ble: BLE event: 0x32.
<debug> nrf_sdh_ble: BLE event: 0x32.
<debug> nrf_sdh_ble: BLE event: 0x33.
<debug> ble_db_disc: Discovery of service with UUID 0x180D completed with success on connection handle 0x0.
<debug> ble_db_disc: Starting discovery of service with UUID 0x180F on connection handle 0x0.
<debug> nrf_sdh_ble: BLE event: 0x30.
<debug> ble_db_disc: Found service UUID 0x180F.
<debug> nrf_sdh_ble: BLE event: 0x32.
<debug> nrf_sdh_ble: BLE event: 0x32.
<debug> nrf_sdh_ble: BLE event: 0x33.
<debug> ble_db_disc: Discovery of service with UUID 0x180F completed with success on connection handle 0x0.
<debug> ble_hrs_c: Heart Rate Service discovered at peer.
<debug> app: Heart rate service discovered.
<debug> ble_hrs_c: Configuring CCCD. CCCD Handle = 38, Connection Handle = 0
<debug> ble_bas_c: Battery Service discovery failure at peer. 
<debug> ble_bas_c: Battery Service discovered at peer.
<debug> app: Battery Service discovered. Reading battery level.
<debug> ble_bas_c: SD Read/Write API returns error. This message sending will be attempted again..
<debug> app: Enabling Battery Level Notification.
<debug> ble_bas_c: Configuring CCCD. CCCD Handle = 42, Connection Handle = 0
<debug> ble_bas_c: SD Read/Write API returns error. This message sending will be attempted again..
<debug> nrf_sdh_ble: BLE event: 0x38.
<debug> ble_bas_c: SD Read/Write API returns Success..
<debug> nrf_sdh_ble: BLE event: 0x1A.
<debug> nrf_sdh_ble: BLE event: 0x39.
<debug> ble_hrs_c: Received HVX on link 0x25, hrm_handle 0x25
<info> app: Heart Rate = 0.
<debug> nrf_sdh_ble: BLE event: 0x36.
<info> app: Battery Level Read as 60 %.
<debug> ble_bas_c: SD Read/Write API returns Success..
<debug> nrf_sdh_ble: BLE event: 0x1A.
<debug> nrf_sdh_ble: BLE event: 0x38.
<debug> nrf_sdh_ble: BLE event: 0x39.
<debug> ble_hrs_c: Received HVX on link 0x25, hrm_handle 0x25
<info> app: Heart Rate = 0.
<debug> nrf_sdh_ble: BLE event: 0x39.
<debug> ble_hrs_c: Received HVX on link 0x25, hrm_handle 0x25
<info> app: Heart Rate = 0.
<debug> nrf_sdh_ble: BLE event: 0x39.
<debug> ble_hrs_c: Received HVX on link 0x25, hrm_handle 0x25
<info> app: Heart Rate = 0.
