Last time, this column introduced CHDK and how to load it on a camera’s SD card. Locking the SD card makes it bootable on a Canon camera and that allows you to write simple scripts that automate features of Canons that aren’t otherwise available.This month’s column discusses the syntax of the uBasic scripting language so you can begin writing your own scripts.The next article will cover when I gave a NearSys BalloonSat flight computer control of a Canon camera running a remote script.
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