Timers does what it says on the tin where it will execute some code when its set time has been reached.

import libraries

  **#include "tap/board/board.hpp"
#include "drivers_singleton.hpp"
#include "tap/communication/serial/uart_terminal_device.hpp"**

import diver object and initialize the board

  src::Drivers *drivers = src::DoNotUse_getDrivers();     // gets the driver object
Board::initialize();     // initialize the whole board

create the timer object and have it go off every for 1000000 microseconds

  tap::arch::PeriodicMicroTimer RunTimer(1000000);

initialize the led

  drivers->leds.init();
bool led_state = true;

turn the led on and off when the timer expires

  if(RunTimer.execute()){
	drivers->leds.set(tap::gpio::Leds::Red, led_state);
  led_state = !led_state;
 }

Code 

  #include "tap/board/board.hpp"
#include "drivers_singleton.hpp"
#include "tap/communication/serial/uart_terminal_device.hpp"


int main(){

    src::Drivers *drivers = src::DoNotUse_getDrivers();     // gets the driver object
    Board::initialize();     // intalize the whole board

    tap::arch::PeriodicMicroTimer RunTimer(1000000);  

    drivers->leds.init();
    bool led_state = true;

    while(true){
        if(RunTimer.execute()){
            drivers->leds.set(tap::gpio::Leds::Red, led_state);
            led_state = !led_state;
        }
    }
}