Android app that reads data from bluetooth and graphs it

This app will have a patient,doctor, guest mode. Each mode has certain functions mentioned in the info.txt. This app will connect to a bluetooth device (hc-05) and receive data from the device of value ranging from 0-1023. Need to graph the incoming data as an ecg graph. Since the device is an ecg device sending signals. Also need to save the incoming data in sequence and as a file so that it can be shared with doctor or replayed (in the graph)
Rest of the details mentioned in the info.txt
Need this in a week