How to send ADC values using NUCLEO-64 board and BlueNRG to mobile device

[STara.3]

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 using ADC and am not sure where to begin. Any help is greatly appreciated.