//function to handle  input
void handleButtonInput();
void handleADC();

//funtion to initialize the user interface
void initUI();

//functions to jump to another time scale
void scaleFaster();
void scaleSlower();

//functions to jump to another amplitude scale
void scaleHigher();
void scaleLower();


//functions to jump to another waveform
void nextWaveform();
void prevWaveform();