Canon CHDK Quick Start Manual page 57

Example Scripts:
UltraIntervalometer (Time Lapse)
Script Code (save as "ult_intrvl.bas" to your /SCRIPTS/ folder)
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rem Author - Keoeeit
rem Written for S-Series
rem Should be okay on others
rem Use Endless mode with caution
rem See documentation for important info
@title Ultra Intervalometer
@param a Delay 1st Shot (Mins)
@default a 0
@param b Delay 1st Shot (Secs)
@default b 0
@param c Number of Shots
@default c 5
@param d Interval (Minutes)
@default d 0
@param e Interval (Seconds)
@default e 0
@param f Interval (10th Seconds)
@default f 5
@param g Endless? No=0 Yes=1
@default g 0
p=a*60000+b*1000
t=d*60000+e*1000+f*100
if c<1 then let c=5
if t<100 then let t=100
if g<0 then let g=0
if g>1 then let g=1
if p<0 then let p=0
z=t*c
y=p+z
print "1 Cycle Time:", y/60000; "min", y%60000/1000; "sec"
goto "interval"
:interval
if p>0 then gosub "pause"
print "Shot 1 of", c
shoot
if c=1 then end
for n=2 to c
sleep t
print "Shot", n, "of", c
shoot
next n
if g=1 then goto "interval" else end
:pause
n=(a*60)+b
for m=1 to n
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