1 ; File: "red-green.scm"
6 (led 'green) ; set LED to green
7 (putchar #\G) ; send a "G" to the console
8 (led 'off) ; turn off LED
9 (sleep 100) ; wait 1 second
11 (led 'red) ; set LED to red
12 (putchar #\R) ; send an "R" to the console
13 (led 'off) ; turn off LED
14 (sleep 100) ; wait 1 second