User's Manual

Now we could try to update the battery level to be 50% on RN4020 by typing either
of following commands:
 SUW,2A19,32
 SHW,0019,32
After issuing either of above commands, user could notice that the value of UUID
2A19 in LightBlue window, running on Apple device automatically updates to 0x32
(50 decimal). This is because with an active notification, any update to the value of a
characteristic on the server side will be notified to the client side. Figure 6 shows
automatic update results on LightBlue.
Figure 6: Notification Result of Battery Level