- A write-protect tab so that I can boot it up directly into CHDK and do motion detect and/or interval shooting and still use Eye-Fi for uploads on my Canon PowerShot
- A config item so that once photos are successfully uploaded, the system can be configured to delete the pictures off the card.
I'm utilizing a TDK-Lambda Point of Load (POL) DC to DC converter (CC10-1203SF-E) trimmed down from 3.3 volts DC to 3.15 volts DC connected to a six-pack of 6-volt alkaline lantern batteries (or a car battery) so that I can power my Canon PowerShot A570IS through the entire Interop show. I want to have it take a shot every half hour or so and upload to Picasa for me. At the end of the show, I take all the JPEGs and combine them into a time-lapse video. The goal is to go from bare floor to bare floor (setup to teardown). No fuss, no muss. The only hassle is that during the exhibit hours, the Wi-Fi soup from all the exhibitors is going to prevent the camera from uploading, but I'm fairly confident that once the show floor closes for the day (and the Wi-Fi soup thins out), it will be able to jump onto the Wi-Fi network and upload. The reason why I've gone through all the effort to find the POL DC-DC converter is that it has a rather wide input range allowing me to use photovoltaics or batteries. With the wide input range (9 to 18 volts), it can compensate for the voltage changes as the batteries slowly drain.
If I can ever find enough time, I'm pretty sure I can combine both the Intervelometry (time lapse) and the motion-detect scripts. Throw in the automatic upload and you have something VERY special.