I installed the Canon Hack Development Kit – CHDK – on my Canon Powershot G9 camera. CHDK is an amazing Open Source project that provides an alternate firmware for Canon Powershot cameras.
With CHDK installed, you can write scripts to control virtually every aspect of the camera.
I created an intervalometer script for CHDK that will trigger the camera to take a photo every 30 seconds for the duration of the HAPPy near-space balloon project that I am working on with Geoff.
An added bonus is that the G9 has temperature sensors on the CCD, battery and lens so the script also logs those along with the battery voltage every time a photo is taken 🙂
Below is a photo of the G9 LCD showing the HAPPy_Intervalometer running and some of the variables being recorded and below that is the HAPPy Intervalometer script…