ME772 code repository for course project of mechatronics Main components used: HC05 bluetooth module Lithium Polymer battery 7.4V 128x64 OLED screen Arduino nano Breadboard, wires, etc. heart rate monitor The circuit: The App: The app was built using MIT App inventor 2: The screen looks like this: these are the components used for making the app: this is the block diagram of the control of the app: