nRF8001[server] Device disconnected after 10 minutes automatically?

[gbiradar]

"Hi Guys, my nRF8001 BLE is working perfectly, But recently i was performing regression testing to check BLE connection, their i faced one issue after 10 minutes from nRF8001[server] device disconnected message received on nRF master control Android APP. i tried this many times same issue came. i don't want device disconnection from server. How do i prevent this disconnecion. For power saving i have my own user API function to let server goto sleep.

regards, gbiradar"

[gbiradar]

Hi @David Edwin & @Anders Strand, this is the log which is generated in nRF Control APP,

href="nRF Master Control Panel, 2016-06-01

No name (F2:48:EC:8E:08:93)

I 11:41:20.625 [Server] Server started

V 11:41:20.654 Heart Rate (0x180D)

• Heart Rate Measurement [N] (0x2A37)

   Client Characteristic Configuration (0x2902)

• Body Sensor Location [R] (0x2A38)

• Heart Rate Control Point [W] (0x2A39)

User Data (0x181C)

• Last Name [R W] (0x2A90)

• Gender [R W] (0x2A8C)

Link Loss (0x1803)

• Alert Level [R W] (0x2A06)

V 11:41:21.016 Connecting to F2:48:EC:8E:08:93...

D 11:41:21.033 gatt = device.connectGatt(autoConnect = false)

D 11:41:21.101 [Server callback] Connection state changed with status: 0 and new state:

CONNECTED (2)

I 11:41:21.116 [Server] Device with address F2:48:EC:8E:08:93 connected

D 11:41:21.134 [Callback] Connection state changed with status: 0 and new state: CONNECTED

(2)

I 11:41:21.148 Connected to F2:48:EC:8E:08:93

D 11:41:21.163 wait(600ms)

V 11:41:21.777 Discovering services...

D 11:41:21.798 gatt.discoverServices()

D 11:41:24.336 [Callback] Services discovered with status: 0

I 11:41:24.369 Services discovered

V 11:41:24.516 Generic Access (0x1800)

• Device Name [R] (0x2A00)

• Appearance [R] (0x2A01)

• Peripheral Preferred Connection Parameters [R] (0x2A04)

Generic Attribute (0x1801)

Unknown Service (00000001-0000-1000-8000-00805f9b34fb)

• Unknown Characteristic [I R] (00001000-0000-1000-8000-00805f9b34fb)

   Client Characteristic Configuration (0x2902)

• Unknown Characteristic [R W] (00001100-0000-1000-8000-00805f9b34fb)

• Battery Level [R] (0x2A19)

• Current Time [R W] (0x2A2B)

• Intermediate Temperature [R W] (0x2A1E)

• Temperature Measurement [R W] (0x2A1C)

Nordic UART Service (6e400001-b5a3-f393-e0a9-e50e24dcca9e)

• RX Characteristic (6e400002-b5a3-f393-e0a9-e50e24dcca9e)

• TX Characteristic (6e400003-b5a3-f393-e0a9-e50e24dcca9e)

• Unknown Characteristic [R] (6e400005-b5a3-f393-e0a9-e50e24dcca9e)

• Unknown Characteristic (6e400004-b5a3-f393-e0a9-e50e24dcca9e)

Battery Service (0x180F)

• Battery Level [R] (0x2A19)

Current Time Service (0x1805)

• Current Time (0x2A2B)

Health Thermometer (0x1809)

• Temperature Measurement (0x2A1C)

V 11:41:28.719 Enabling indications for 00001000-0000-1000-8000-00805f9b34fb

D 11:41:28.738 gatt.writeDescriptor(00002902-0000-1000-8000-00805f9b34fb, value=0x0200)

I 11:41:28.879 Data written to descr. 00002902-0000-1000-8000-00805f9b34fb, value: (0x) 02-

00

A 11:41:28.893 "Indications enabled" sent

D 11:41:28.924 gatt.setCharacteristicNotification(00001000-0000-1000-8000-00805f9b34fb,

true)

V 11:41:28.938 Indications enabled for 00001000-0000-1000-8000-00805f9b34fb

I 11:42:23.247 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-84-70-05-0D-0D

A 11:42:23.290 "(0x) 01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-84-70-05-0D-0D" received

I 11:43:25.256 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-8D-E4-05-0D-0D

A 11:43:25.291 "(0x) 01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-8D-E4-05-0D-0D" received

I 11:44:27.169 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-97-58-05-0D-0D

A 11:44:27.203 "(0x) 01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-97-58-05-0D-0D" received

I 11:45:29.179 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-A0-CC-05-0D-0D

A 11:45:29.224 "(0x) 01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-A0-CC-05-0D-0D" received

I 11:46:31.141 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-AA-40-05-0D-0D

A 11:46:31.188 "(0x) 01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-AA-40-05-0D-0D" received

I 11:47:33.102 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-B3-B4-05-0D-0D

A 11:47:33.142 "(0x) 01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-B3-B4-05-0D-0D" received

I 11:48:35.064 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-BD-28-05-0D-0D

A 11:48:35.102 "(0x) 01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-BD-28-05-0D-0D" received

I 11:49:37.074 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-C6-9C-05-0D-0D

A 11:49:37.142 "(0x) 01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-C6-9C-05-0D-0D" received

I 11:50:39.035 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-40-00-00-0A-00-00-D0-10-05-0D-0D

A 11:50:39.074 "(0x) 01-00-00-00-00-00-00-00-FF-40-00-00-0A-00-00-D0-10-05-0D-0D" received

D 11:51:21.205 [Server callback] Connection state changed with status: 0 and new state:

DISCONNECTED (0)

I 11:51:21.240 [Server] Device disconnected

D 11:51:21.278 [Callback] Connection state changed with status: 0 and new state:

DISCONNECTED (0)

I 11:51:21.306 Disconnected

D 11:51:21.534 gatt.refresh()

D 11:51:21.561 gatt.close()

">nRF Master Control Panel, 2016-06-01

No name (F2:48:EC:8E:08:93)

I 11:41:20.625 [Server] Server started

V 11:41:20.654 Heart Rate (0x180D)

• Heart Rate Measurement [N] (0x2A37)

   Client Characteristic Configuration (0x2902)

• Body Sensor Location [R] (0x2A38)

• Heart Rate Control Point [W] (0x2A39)

User Data (0x181C)

• Last Name [R W] (0x2A90)

• Gender [R W] (0x2A8C)

Link Loss (0x1803)

• Alert Level [R W] (0x2A06)

V 11:41:21.016 Connecting to F2:48:EC:8E:08:93...

D 11:41:21.033 gatt = device.connectGatt(autoConnect = false)

D 11:41:21.101 [Server callback] Connection state changed with status: 0 and new state:

CONNECTED (2)

I 11:41:21.116 [Server] Device with address F2:48:EC:8E:08:93 connected

D 11:41:21.134 [Callback] Connection state changed with status: 0 and new state: CONNECTED

(2)

I 11:41:21.148 Connected to F2:48:EC:8E:08:93

D 11:41:21.163 wait(600ms)

V 11:41:21.777 Discovering services...

D 11:41:21.798 gatt.discoverServices()

D 11:41:24.336 [Callback] Services discovered with status: 0

I 11:41:24.369 Services discovered

V 11:41:24.516 Generic Access (0x1800)

• Device Name [R] (0x2A00)

• Appearance [R] (0x2A01)

• Peripheral Preferred Connection Parameters [R] (0x2A04)

Generic Attribute (0x1801)

Unknown Service (00000001-0000-1000-8000-00805f9b34fb)

• Unknown Characteristic [I R] (00001000-0000-1000-8000-00805f9b34fb)

   Client Characteristic Configuration (0x2902)

• Unknown Characteristic [R W] (00001100-0000-1000-8000-00805f9b34fb)

• Battery Level [R] (0x2A19)

• Current Time [R W] (0x2A2B)

• Intermediate Temperature [R W] (0x2A1E)

• Temperature Measurement [R W] (0x2A1C)

Nordic UART Service (6e400001-b5a3-f393-e0a9-e50e24dcca9e)

• RX Characteristic (6e400002-b5a3-f393-e0a9-e50e24dcca9e)

• TX Characteristic (6e400003-b5a3-f393-e0a9-e50e24dcca9e)

• Unknown Characteristic [R] (6e400005-b5a3-f393-e0a9-e50e24dcca9e)

• Unknown Characteristic (6e400004-b5a3-f393-e0a9-e50e24dcca9e)

Battery Service (0x180F)

• Battery Level [R] (0x2A19)

Current Time Service (0x1805)

• Current Time (0x2A2B)

Health Thermometer (0x1809)

• Temperature Measurement (0x2A1C)

V 11:41:28.719 Enabling indications for 00001000-0000-1000-8000-00805f9b34fb

D 11:41:28.738 gatt.writeDescriptor(00002902-0000-1000-8000-00805f9b34fb, value=0x0200)

I 11:41:28.879 Data written to descr. 00002902-0000-1000-8000-00805f9b34fb, value: (0x) 02-

00

A 11:41:28.893 "Indications enabled" sent

D 11:41:28.924 gatt.setCharacteristicNotification(00001000-0000-1000-8000-00805f9b34fb,

true)

V 11:41:28.938 Indications enabled for 00001000-0000-1000-8000-00805f9b34fb

I 11:42:23.247 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-84-70-05-0D-0D

A 11:42:23.290 "(0x) 01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-84-70-05-0D-0D" received

I 11:43:25.256 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-8D-E4-05-0D-0D

A 11:43:25.291 "(0x) 01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-8D-E4-05-0D-0D" received

I 11:44:27.169 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-97-58-05-0D-0D

A 11:44:27.203 "(0x) 01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-97-58-05-0D-0D" received

I 11:45:29.179 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-A0-CC-05-0D-0D

A 11:45:29.224 "(0x) 01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-A0-CC-05-0D-0D" received

I 11:46:31.141 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-AA-40-05-0D-0D

A 11:46:31.188 "(0x) 01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-AA-40-05-0D-0D" received

I 11:47:33.102 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-B3-B4-05-0D-0D

A 11:47:33.142 "(0x) 01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-B3-B4-05-0D-0D" received

I 11:48:35.064 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-BD-28-05-0D-0D

A 11:48:35.102 "(0x) 01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-BD-28-05-0D-0D" received

I 11:49:37.074 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-C6-9C-05-0D-0D

A 11:49:37.142 "(0x) 01-00-00-00-00-00-00-00-FF-00-00-00-0A-00-00-C6-9C-05-0D-0D" received

I 11:50:39.035 Indication received from 00001000-0000-1000-8000-00805f9b34fb, value: (0x)

01-00-00-00-00-00-00-00-FF-40-00-00-0A-00-00-D0-10-05-0D-0D

A 11:50:39.074 "(0x) 01-00-00-00-00-00-00-00-FF-40-00-00-0A-00-00-D0-10-05-0D-0D" received

D 11:51:21.205 [Server callback] Connection state changed with status: 0 and new state:

DISCONNECTED (0)

I 11:51:21.240 [Server] Device disconnected

D 11:51:21.278 [Callback] Connection state changed with status: 0 and new state:

DISCONNECTED (0)

I 11:51:21.306 Disconnected

D 11:51:21.534 gatt.refresh()

D 11:51:21.561 gatt.close()