If you have a Canon PowerShot, this is worth checking out – The Canon Hack Development Kit @ CHDK Wiki…
CHDK – Unleash the POWER in your Canon PowerShot!
What is CHDK?
Canon Hack Development Kit;
Temporary – No permanent changes are made to the camera.
Experimental – No warranty. Read about the risks in the FAQ
Free – free to use and modify, released under the GPL.
Professional control – RAW files, bracketing, full manual control over exposure, Zebra-Mode, Live histogram, Grids, etc.
Motion detection – Trigger exposure in response to motion, fast enough to catch lightning.
USB remote – Simple DIY remote allows you to control your camera remotely.
Scripting – Control CHDK and camera features using ubasic and Lua scripts. Enables time lapse, motion detection, advanced bracketing, and much more.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.
Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !
Agree! CHDK is awesome. They have a flickr pool @ http://www.flickr.com/groups/chdk/ showing some of the types of photos you can take. Pretty cool stuff. You probably want to check out your model number @ http://mighty-hoernsche.de/ to see if your camera is supported by a non-beta version of the software, as some of the betas are a bit buggy. If you do run into a bug, the firmware is not permanent – you have to load it each time, which, using a camera trick, you can arbitrarily turn on – so at worse, if you’re away from your computer, you can use the “regular” firmware on your CPU, and then re-flash when you get back home. Note that this firmware is *only* for the point & shoot variety, not the dSLR cameras that Cannon sells.