Communication between master and slave

[pavan]

Hi, i have the below queries:

In our project we are using multiple masters and multiple slaves, in that each slave is dedicated to a single master.

for ex: we are having 4 masters(M1,M2,M3,M4) and 4 slaves(S1,S2,S3,S4), in that S1 will be dedicated to M1 only, S2->M2, S3->M3 and S4->M4.

whenever we run the Master program it will scan for the slaves, which are available within the range and will auto connect to the nearest slave but my question is how can i be able to select the particular slave and discard the others?

for ex: When M1 starts scanning all the 4slaves i.e.. (S1, S2, S3 & S4) will going to be advertise, and connect to the random slave but as per our requirement M1 master has to connect the S1 Slave only and neglect the others.

here we are using ble_central(Master) and ble_app_uart(slave) programs path for the same is as below

MASTER : nRF5_SDK_12.3.0_d7731ad(1)\nRF5_SDK_12.3.0_d7731ad
examples\ble_central\ble_app_uart_c\pca10028\s130\arm5_no_packs

SLAVE : nRF5_SDK_12.3.0_d7731ad(1)\nRF5_SDK_12.3.0_d7731ad
examples\ble_peripheral\ble_app_uart\pca10028\s130\arm5_no_packs

please confirm ASAP!!

Thanks in advance :)

[Petter Myhre]

Then the master will look at the device name in the advertisement from the slave, recognize it, and send a connection request to it. Yes, you need to make changes, as I said currently it looks for the NUS UUID, not a device name. See how BLE_GAP_EVT_ADV_REPORT is handled inside on_ble_evt().