BlueNRG notification

jiri239955_st · ‎2015-08-03

Posted on August 04, 2015 at 07:58

I use Blue NRG chips for BLE communication. Testing it with STEVAL-IDB003V1 with BlueNRG GUI in Master mode. In device i have defined characteristic with notification and read/write properties (1Ah). Characteristic value changed with period 1 second (epoch time).

When i read characteristic value (by ACI_GATT_READ_CHARAC_USING_UUID or ACI_GATT_READ_CHARACTERISTIC_VAL), value changed correctly, but IDB003V1 not show (or receiving) value change notification.

Whats condition must be met for value change notification? Must be defined characteristic descriptors (i thing that in sensor demo isn't defined for time)?

Thank you for answer

marchese.graziella · ‎2015-09-17

Posted on September 17, 2015 at 17:36

Dear Customer,

if you want that the master receives the notification, each time that the characteristic value changed on server side, you have to enable the notification.

For example, you hav e to send the command ACI_GATT_WRITE_CHARAC_VAL with Attribute_Val=0x0001 (to enable notification)

Regards,

GM

jiri239955_st · ‎2015-10-21

Posted on October 21, 2015 at 16:43

Thank you for answer. It works correctly.