I published an Instructable on how to build an Arduino based high speed photography rig. Today I received an email from Instructables that they liked it so much that it will be featured in the home page!
(this is the part where I shamelessly ask you for your vote)
Unfortunately there is no direct link to the vote button so you have to enter the contest page (http://www.instructables.com/contest/photography), look for “Arduino high speed photography by JulianV4” and click the Vote button.
My contest entry is easy to recognize. Look for this thumbnail:
That seems like a very nice explanation of your project. It could use a bit more on the electronic topic though.
Also I noticed you have the LEDs polarized the wrong way in the schematic for the LED_Audio and LED_Photocell section. That will cause some confusion. The cathode (the dash-side of the symbol) is connected to Vcc via the resistor. So when LED_Audio or LED_Photocell is pulled low they are reverse biased and no current flows, the led blocks. Or if it they are set high then there is no voltage difference across the led and resistor and no current will flow either, or very little and won’t light up.
Turn the led symbols around and when the LED_Audio or LED_Photocell is low it will light up. If they are high then they won’t light up because there is not enough of a voltage difference across them.
