Seeking an nRF51 or nRF52 working application (S130) with observer callback

[Solomon]

Where can I find a working application that has an observer callback function (not a beacon) . this application must have also the broadcaster callback function.

[Petter Myhre]

Please have a look at the ble_app_hrs_rscs_relay example in the ble_central_and_peripheral folder in SDK 11. This example on GitHub may also be of interest, it is made for an older SoftDevice and SDK though.

[Solomon]

Look like this application is advertising the observation data from observed sensors (RSC Measurement (0x2A53) and HRS Measurement (0x2A37) ). I am seeking an example application that the nRF51 is on a BLE (RF) observation mode or can be set into BLE observation mode.