Changes: User Written Scripts


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* [[uBASIC/Scripts:Increasing Intervals HDR Nightshot Script|Increasing Intervals HDR Nightshot Script]] -- Shoots 7 images with shutter times getting longer each shot.
* [[uBASIC/Scripts:Increasing Intervals HDR Nightshot Script|Increasing Intervals HDR Nightshot Script]] -- Shoots 7 images with shutter times getting longer each shot.
* [[Lua/Scripts: Accurate Intervalometer with power-saving and pre-focus|Accurate Intervalometer with power-saving and pre-focus]]
* [[Lua/Scripts: Accurate Intervalometer with power-saving and pre-focus|Accurate Intervalometer with power-saving and pre-focus]]
* [[Battery Miser Intervalometer]] - demonstrates all know techniques for conserving battery power (Lua)
==== Bracketing ====
==== Bracketing ====

Revision as of 17:02, December 15, 2012

User-written Scripts

Dear script authors and those just learning:

The CHDK Forum has a dedicated Script Writing and uBASIC section. The forum's design and capabilities make it far easier to discuss and help with the sometimes confusing nature of scripts and uBASIC. You are strongly encouraged to post on that forum so that you can get assistance more rapidly and in a much more easy-to-follow discussion format. I hope you can join us there!

For beginners, there is a tutorial: TutorialScratchpad

Final scripts will still be added here as the main Scripts Archive. The above mentioned forum is only for those who would like some assistance or input from others with similar goals in mind.

See also the Scripting Cross Reference Page for the complete list of CHDK scripting commands for Lua and uBasic.

The scripts that are posted below were written by CHDK users, and are contributed as is.

Please note: since late summer of 2007 a number of special builds of CHDK have been developed with additional uBASIC commands and features. Thus, some of the scripts contributed recently may not run on all versions of CHDK.

Further, some of the recent scripts use the set_prop command. This directly modifies particular memory locations that store some camera settings. The Digic II and Digic III cameras apparently have different property number assignments. Currently (mid Nov, 2007) only the Digic II assignments have been determined an any detail. So, if you have a Digic III camera, be cautious in using any script that uses these commands.



Note to script authors and users. Try to make screenshots or post example pictures of your scripts in action.

  • Drivelapse script for recording a time lapse from a moving vehicle. Use this for road trips etc.
  • Ultra Intervalometer
  • Fast Motion detection (latest version)
  • Countdown Intervalometer is an easy to use intervalometer script suitable for the casual user.
  • Time lapse script variable shutter speed (prevents camera from taking underexposed shots during timelapse.)
  • HDR time lapse (Starts at 300 as default for pictures. Easier to understand in some respects than the Ultra Intervalometer. Someone needs to find a way to combine the 1st and 2nd scripts' user features as the 1st script doesn't show what's going on, rather just shoots. The second script tells you delay for 10 seconds so at least you know you're still taking a shot)
  • Multipurpose Motion (Sexy script. Could use for monitoring, or even photo shoots for banquets and such.)
  • Zoom Shoot! Zoom takes a shot zooms in with one step takes another shot zooms in and so forth.
  • Long Exposure Intervalometer (Its purpose is for NIGHT shots. Takes long exposure shots continuously for applications such as night time time-lapse or to take image stacking shots for astrophotography. IMPORTANT NOTE ABOUT THIS SCRIPT. IT TAKES LONG EXPOSURES, SO DON'T PANIC WHEN YOUR SCREEN GOES BLANK FOR 15 SECONDS. IT'S TAKING A PICTURE.)
  • Shutter Speed Stack (A variation on the above script.)
  • Lightning script -- fudgey (Lightning script which captures quick successions of light bursts.)

Older Scripts (Use at own risk)




Old / Obsolete

  • Lightning Photography (Obsolete with CHDK Build #144 and later, see note on script page.)
  • Tally-Torch (Funny but obsolete, see new LED commands.)
  • Cable Release (Obsolete unless you need a mechanical trip, all new builds have USB remote!)

Other Resources / Archives

Some more scripts that may not appear here at the Wikia archive. Due to the easier method of jointly discussing and working on scripts at the CHDK Forum some new scripts are showing up there that you may not find in any other places. For example: some newer and faster Lightning Photography /Motion Detection scripts have been added (among others).

  • (Are there scripts archives from any other-language forums out there? Please share.)
An interesting collection of unique scripts, written primarily for the SD1000/IXUS70 camera (DIGIC III), but can easily be converted to most all DIGIC II cameras by following the directions in the simple REM comments in them. Worth checking them out. They use some creative shortcuts that can be applied to your own scripts, or used as-is.

Information for contributors

Please add your debugged and tested scripts to this section. Reserve discussion and help for writing your script to the CHDK Forum: Script Writing (or the now rarely-used discussion section (tab above)). Final scripts will appear on this page.

Scripts added here should include:
  • Camera model that you wrote it on.
  • Other camera models that it is known to work on.
  • The CHDK build required to run it (if it's an extension beyond GrAnds builds).
  • Any special instructions that may be required for running the script.
  • Your script!
Since some scripts require special instructions that might be too lengthy to write into the script itself with "print" statements, I think it would be a good idea to start a common practice of including a short but informative text-file with each script, that could be saved by the same filename. Using a .TXT extension so the file may be referred to as a help-file using CHDK's "File Reader".
It has been found that some people are irresponsibly/foolishly sharing collections of scripts without the important accompanying documentation for each script. Try to include some extra info in the header of your script in the form of rem statements that might help the unfortunate people that might get hold of undocumented scripts. Beginning of script example:
rem Author: Your Alias/Name
rem For S-Series ONLY!
rem Requires Fingalo's build v 106 or later!
rem Use with caution! Read documentation!

To post your own script to this main Scripts page:

  1. Click on the EDIT TAB at the top of the page (not the ones beside each entry).
  2. Scroll to the bottom of the list of scripts.
  3. Add new line
    to the list.
  4. Save changes.
  5. Click on the list item you just added.
  6. Use the following template to publish your script:
== <<SCRIPT TITLE>> == 
:'''Written for/on:''' <<CAMERA MODEL>>

:'''Also works on:''' <<CAMERA MODELS>>

:'''Required CHDK build:''' <<either 'any' or specify the build required>> 


'''Documentation/Help''' (save as a small "<<script_filename>>.txt" file to your /CHDK/SCRIPTS/ folder) 




'''Script Code''' (save as "<<script_filename>>.bas" to your /CHDK/SCRIPTS/ folder) 






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