do
do
; Flash a LED or whatever else you want
loop until time > 3600
PULSOUT c.1 , 1000 ; Pulse pin c.1 for 1 second
time = 0
loop
symbol ONEHOUR = 36000 / 23 ; Sleeptimer is ~ 2.3 seconds
do
sleep ONEHOUR
pulsout c.1 , 1000 ; Pulse a pin
loop