User's Manual

WV,111213141516171819101A1B1C1D1E1F,0020,1234.
Figure 9: Writing Values to Private Characteristics
Notification on private characteristic could also be enabled by pressing “Start
Notify” button within LightBlue window. RN4020 should notify the host the start of
notification by following status message, which means the configuration of
characteristic 0x111213141516171819101A1B1C1D1E1F has been written as
0x0001 (little endian), therefore, notification has been started.
WC,111213141516171819101A1B1C1D1E1F,0021,0100.
Once notification has been started, value of private characteristic could be updated
from RN4020 and the updated value will be shown on LightBlue automatically. Try
following command to update the value of private characteristic:
 SUW, 111213141516171819101A1B1C1D1E1F,AB90
// Set value 0x90AB to characteristic
// 0x111213141516171819101A1B1C1D1E1F