So far I have successfully downloading the SensorDemo app to my board, but want to create my own application that sends ADC values of a sensor to my phone via BLE. I am able to connect to my phone, but not receiving any values.

I am trying to establish a bluetooth connection with NUCLEO-L476RG board and X-NUCLEO-IDB05A2 to send ADC values to a mobile device. I have successfully ran the SensorDemo application on this board, but now I would like to obtain real sensor values u...