Lab1 programs lab1-ex1 Flash LED by writing to port registers lab1-ex2 Flash LED, using helper functions to write to port registers directly lab1-ex3 Flash LED, using helper functions in module led1.c to write to port registers directly lab1-ex4 Flash LED, using helper functions in module led1.c to write to port registers using pio abstraction lab1-ex5 Flash LED, using led device driver Lab2 programs lab2-ex1 Implement paced loop by writing to timer/counter1 registers directly lab2-ex2 Implement paced loop, using helper functions in mypacer.c by writing to timer/counter1 registers directly lab2-ex3 Implement paced loop using pacer.c lab2-ex4 Flash LED in LED matrix lab2-ex5 Output pattern by multiplexing LED matrix Lab3 programs lab3-ex1 Reimplement stopwatch program using paced loop. lab3-ex2 Hello world! lab3-ex3 Using the navswitch lab3-ex4 Using the navswitch and IR communications.