Role of nRF51822 in connectable and undirected advertising mode

RE: Role of nRF51822 in connectable and undirected advertising mode

Petter Myhre — Thu, 22 Sep 2016 11:34:57 GMT

I think you should create a new question for this, please explain in detail what you have done. But, you cannot update it directly, you can however write the UUID to a characteristic value, and then take this value and put it into the advertising packet.

RE: Role of nRF51822 in connectable and undirected advertising mode

satheesh — Thu, 22 Sep 2016 11:05:42 GMT

Yes exactly I did in same order. I disconnected in app and the name field is updated now.

Whether it is possible to Update the UUID field of beacon from a mobile app in connected mode and the same data should be advertised when disconnected. I tried this with enabling UART service but the UUID is different from BEACON mode UUID.

RE: Role of nRF51822 in connectable and undirected advertising mode

Petter Myhre — Fri, 16 Sep 2016 13:08:38 GMT

So you connect with one smart phone, write to the device name characteristic, disconnect, connect with another smart phone, and try to read the device name characteristic? It should stay the same, but if you reset the device name will be reset. How are you disconnecting?

RE: Role of nRF51822 in connectable and undirected advertising mode

satheesh — Thu, 15 Sep 2016 14:09:03 GMT

Under Client tab of nRF connect there is an option generic access and it has write and read access. In write option I have given some data and in log window it shows the data is sent . But I can't receive it when I try to receive it with another mobile loaded with app

RE: Role of nRF51822 in connectable and undirected advertising mode

Petter Myhre — Thu, 15 Sep 2016 14:00:39 GMT

What do you mean by "I cannot view the modified value"? Where can't you view it? Are you able to write or not?

RE: Role of nRF51822 in connectable and undirected advertising mode

satheesh — Thu, 15 Sep 2016 13:24:26 GMT

I have configured the m_adv_params.type to BLE_GAP_ADV_TYPE_ADV_IND, The characteristic value is configured as writable and I am using nRF connect app to update the value .

The write request is updated as you said. In the nRF connect app after making connection to a beacon the client tab shows read and write option but I cannot view the modified value.

The exact thing to be done is "in connect mode I have to update a value to data field through nRFconnect app and I have to receive the same data in receiver. Any solution?

RE: Role of nRF51822 in connectable and undirected advertising mode

Petter Myhre — Thu, 15 Sep 2016 08:39:38 GMT

How did you configure it? Did you make the characteristic value writable? What app are you using? You can have a look at ble_app_uart example. Examine tx_char_add(). There you can see that the characteristic properties allow write request (char_md.char_props.write = 1;) and write command (char_md.char_props.write_wo_resp = 1;). You also need to allow write access to the attribute, this you do with BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.write_perm);