Take the opportunity to make sure you are up to date with the exercises.

Your solutions won’t look quite like mine.
I do have a few years extra experience, so I’m applying lessons learnt. There is no ‘definitive right’ solution, a solution is good if

• it works
• satisfies any constraints

Solutions

Seminar 1

1. Wrapper for LEDs
   • Use an arrray of DigitalOut my solution
   • A simple class for an LEDs use git checkout led-class on the above repository (once you have a clone or fork)
2. Wrapper for buttons ispressed
   • C like function and array my solution
   • A simple class like wrapper, use git checkout button-class

Exercises

1. Flash at a given rate. The trick here is to calculate the time for the wait function to give the desired flashing frequency. The Period is 1/frequency and the wait times are half that
   • for 1Hz

     red.on();
     wait(0.5);
     red.off();
     wait(0.5);
     

   • for 10Hz

     red.on();
     wait(0.05);
     red.off();
     wait(0.05);
     

   • for 45 flashes per minute. Thats 45/60 flashes per second, the period is 60/45=4/3, the wait times are 2/3seconds

     red.on();
     wait(0.6667);
     red.off();
     wait(0.6667);