You could do the following on an object:

code:

---

# Turn red:
my.red=128;

while(1) {
    # Light up and wait 3s:
    my.lightrange=1000;
    waitt(16*3);

    # Blink off for 5s:
    my.lightrange=0;
    waitt(16*5);
}

---

=thomas