nrf52840 DK problèm to pairing back ?

[chantal thibaud]

Hello, I'm just starting to experiment bluetooth with the nfr52840 DK board and the sample programs available, especially those "ble peripheral" and as a beginner I started by doing a pairing that succeeded after a first programming and then I I forgot the device to pairing again and there not possible ?

Only if I reprogram the board I can again match the board but no later ...? do I need to put the board in pairing mode to pair it with my phone? is there a process for that ?

i try the soft : 

\nRF5_SDK_15.3.0_59ac345\examples\ble_peripheral\experimental\ble_app_hrs_nfc_pairing

nRF5_SDK_15.3.0_59ac345\examples\ble_peripheral\ble_app_alert_notification

why don't pairing after to have forget ? 

Thank for your answers

Best regard

[haakonsh]

Most likely you're storing the pairing data(bonding) in the nRF52840. After you've bonded the two devices and delete the pairing data on one of the devices they won't be able to pair again as one of the devices believes it is already paired. 

By re-programming the nRF52 you're deleting the pairing data. 

You can call pm_peers_delete to delete all pairing information for all devices that have been saved by the Peer Manager, or you can use pm_peer_data_delete to delete the data for a specific device. 

[chantal thibaud]

Thank you haakonsh for your advice that I will deepen.

However, according to my weak knowledge of bluetooth I understand that a bluetooth device once forgotten can be paired again by putting it in pairing mode ... can we put it in this mode to pair again?

How do you call pm_peer_data_delete? in the app or program in question?

Thank you

[chantal thibaud]

Another thing, I wish to be able to connect a mobile or smartphone to order a power electronics, according to you that it program of example that will bring closer to our need?

nRF5_SDK_15.3.0_59ac345 \ examples

Thank you for your advice

[haakonsh]

chantal thibaud said:

according to my weak knowledge of bluetooth I understand that a bluetooth device once forgotten can be paired again by putting it in pairing mode

You are correct, but one side of the link believes that it is already paired, therefore it rejects another pairing attempt, or, attempt to pair with previous data, to which the peer device will reject the pairing attempt. 

In your application that's running on the nRF52840, after you've initialized the peer manager library. 

[haakonsh]

chantal thibaud said:

closer to our need

 And what is your need exactly?