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janvda / node-red-eq3

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[error] the specified device at 00:1a:22:0f:07:67 has not been found yet #3

Open janvda opened 5 years ago

janvda commented 5 years ago

From time to time we get the below error in the log file: 

24.03.19 14:11:40 (+0100)  nodered  24 Mar 13:11:40 - [error] the specified device at 00:1a:22:0f:07:67 has not been found yet
24.03.19 14:11:40 (+0100)  nodered  24 Mar 13:11:40 - [warn] list of all available addressess will be retrieved...
janvda commented 5 years ago

Rebooting didn't fix it. I got the same error.

janvda commented 5 years ago

using bluetoothctl in Host OS shell and then scan on showed the following after some time

[NEW] Device 00:1A:22:0F:07:67 00-1A-22-0F-07-67
...
[CHG] Device 00:1A:22:0F:07:67 RSSI: -97
[CHG] Device 00:1A:22:0F:07:67 Name: CC-RT-BLE
[CHG] Device 00:1A:22:0F:07:67 Alias: CC-RT-BLE
CHG] Device 00:1A:22:0F:07:67 ManufacturerData Key: 0x0000
[CHG] Device 00:1A:22:0F:07:67 ManufacturerData Value:
  00 00 00 00 00 00 00 00 00                       .........       
[CHG] Device 00:1A:22:0F:07:67 AdvertisingFlags:
  00                                               .

So most likely the received signal (RSSI) is way to weak to setup a proper connection. (the device was located in bed room ste.. and the eq-3 is located one floor lower bur...)

The strange thing is that we didn't have this issue this morning.

janvda commented 5 years ago

I have moved the raspberry pi one floor down (so the same floor as the eq3 device but in a different room = our bedroom ) and I no longer got the above issue.

using bluetoothctl in Host OS shell and then scan on showed the following after some time

[CHG] Device 00:1A:22:0F:07:67 Connected: no
[DEL] Device 00:1A:22:0F:07:67 00-1A-22-0F-07-67
...
...
[NEW] Device 00:1A:22:0F:07:67 CC-RT-BLE
[CHG] Device 58:F6:E1:27:F1:5F RSSI: -75
[CHG] Device 00:1A:22:0F:07:67 RSSI: -74
[CHG] Device 00:1A:22:0F:07:67 RSSI: -90
[CHG] Device 00:1A:22:0F:07:67 AdvertisingFlags:
  00                                            
[CHG] Device 58:F6:E1:27:F1:5F RSSI: -67
[CHG] Device 58:F6:E1:27:F1:5F RSSI: -84
[CHG] Device 58:F6:E1:27:F1:5F AdvertisingFlags:
  00                                               .               
[NEW] Device 54:1A:25:47:C9:4E 54-1A-25-47-C9-4E
[CHG] Device 00:1A:22:0F:07:67 RSSI: -76
[CHG] Device 00:1A:22:0F:07:67 AdvertisingFlags:
  05                                               .               
[NEW] Device 79:93:11:44:B7:01 79-93-11-44-B7-01
[CHG] Device 00:1A:22:0F:07:67 RSSI: -91
[CHG] Device 00:1A:22:0F:07:67 AdvertisingFlags:
  00                                               .               
[CHG] Device 00:1A:22:0F:07:67 Connected: yes
[CHG] Device 58:F6:E1:27:F1:5F RSSI: -70
...

So most likely the stronger received signal (RSSI) fixed the problem !