Refresh services in nrf Master Control Panel

RE: Refresh services in nrf Master Control Panel

Erik — Fri, 27 Nov 2015 12:16:23 GMT

Ok, I think I understand now whats going on. I noticed a lot of 133 status error codes in the log when doing a service discovery and just assumed that the service table was corrupt, since that was my problem in the first place. But then I noticed the same error codes when doing a refresh in the MCP. So after digging a bit in the sources I note that a lot of the events delivered to BluetoothGatt are in fact normal errors during a discovery, for instance trying to lookup an included service when there is none present. So, in short it does work, but the status errors in the android debug log made me confused. Thanks for your help. /Erik

RE: Refresh services in nrf Master Control Panel

Aleksander Nowakowski — Thu, 26 Nov 2015 12:43:07 GMT

Hi,

The refresh() method does perform the service discovery, but you are not aware of it (no callback is called). My suggestion would be either to call it after you disconnected (on onConnectionStateChanged->STATE_DISCONNECTED, before you call close() ), or after you connected but delay calling discoverServices() about 600ms. If you are bonded, shortly after you get state connected the device may receive the Service Changed indication and may refresh services automatically. I recommend checking the source code of nRF Toolbox here: github.com/.../BleManager.java

Sequence of actions:

State changed to connected
Refresh
Wait 600 ms
Call discoverServices()

Also, I have never experienced issue you are talking about. What phone are you using?

RE: Refresh services in nrf Master Control Panel

run_ar — Mon, 09 Nov 2015 12:08:30 GMT

There is a hidden method in BluetoothGatt, refresh(); You can see more details here