typedef struct
    /* The application's current state */
    APP_STATES state;

    /* TODO: Define any additional data used by the application. */
    SYS_TMR_HANDLE  sysTimerClientHandle1;  //pointer to System Timer client object 1
    SYS_TMR_HANDLE  sysTimerClientHandle2;  //pointer to System Timer client object 2
    bool            LED3Toggle;             //flag to request LED3 state change
    bool            LED4Toggle;             //flag to request LED4 state change
    uint32_t        startTick;      //System Timer value at start of time period