Alan numitron clock
SNES Pi Webserver
USB Volume/USB toys
SNES Arcade cabinet
Game boy projects
Home Presence Detector
Rand Nerd Tut
Carnet du maker (fr)
ATmel blog (defunct)
Well, I'm not proud but I inspired (stole?) from a young guy I met at the Make : Tokyo Meeting 05 (in 2010).
His wonderful time lapse video are available here http://www.youtube.com/user/OkometubuY so I would like to all credits being given to him for initial idea.
You can find his circuit distributed by Switch-science , as the BluRay DVD of the Timelapses videos.
Update: damned, found a guy who did nearly all ... but mine will be better :P
Time lapse : set your camera pointing to an interesting spot, and take one picture every minute for instance. Combine all these pictures in one movie and that still view you had become animated. Clouds move, sun moves, people and cars pass by, ... and by night with a little long exposure, it's even more nice.
Check here for tricks on how to compile all the still images in one movie (and more!) (or here ).
That young guy made a little system that you strap on the lens, that triggers the camera by sending IR command. Easy, and adaptable to any (or so) camera! That is a great idea I think. I was about to buy one from him (he was selling the set of components to solder yourself for like 2000 JPY), when the geek within me spoke and said "hum, you can make your own version that could also control exposure length and without that IR/every camera compatible stuff"... and it was the strongest.
//duration are divided by 2, since all the timing is compiled for a 16MHz running Arduino but runs on a on-chip 8MHz oscillator //DURATION: max = 1024 = 1 sec => x900 = max is 15 min mDuration = 900 * analogRead(PINDURATION) /2; //EXPO: max = 1024 = 1 sec => x30 = max is 30 sec mExpolen = 30 * analogRead(PINEXPOLEN) /2;
Technical points :
#!/bin/bash avrdude -c avrispv2 -p m328p -P /dev/ttyACM0 -U flash:w:./ArdTimeLapse.cpp.hex:i
(2010-07-22) One evening of work and it was all done. A few adjustments on the software and a couple additional hours later it was ok.
#!/bin/bash for i in *.JPG do j=`printf "img_%d.JPG\n" $x` mv $i $j #echo $j x=$((x%201)) done
mogrify -resize 800 *.JPG
ffmpeg -f image2 -r 25 -i img_%d.JPG video.mpg
The box, left pot is lapse and right is exposure length. Red light is the "on" led, green is the "shoot in progress".
System works on 3 AA battery so should live long. Circuit is very simple with just the ATmega328, a few resistors and a photocoupler.
The 4 leg a the botom of the pcb is the photocoupler. You can see, very simple circuitry.
All content on this site is shared under the MIT licence (do what u want, don't sue me, hat tip appreciated)
electrogeek.cc ~ Formerly known as Kalshagar.wikispaces.com (AlanFromJapan [2009 - 2019])