High speed photography. I was always amazed with Discovery Channel's Time wrap video clips. So I decided to do some experimenting on my own. A high frame rate video camera costs thousands of dollars... that was out of the question. A compromise needed to be made... instead of shooting videos, let's go for high speed photography. Sound Triggered Flash. Simple but inspiring. After doing some online search, I was able to find some links for DIY sound triggered flash. 1. . - Disposable camera with built-in flash x1 - Electret Microphone x1 - 9V battery x1 - LM386- Low voltage audio power amplifier x1 - LM339- Comparator x1 - NE555- 555 timer x1 - TIP120- BJT darlington transistor x1 - 10Kohm potentiometer x2 - Resistances: 10K x7 - 5K x 1 - 510 x 2 - Capacitors: 10nF x3 - 10uF x2 - 220 uF x1 - LED x2 - On/Off dip switch x 22. Now notice how I carefully hold the flash circuit PCB. 3.
First step in designing my circuit was to decide on the user interface. -Tweak the sound sensitivity using a potentiometer 4. 5. Low-Cost High-Speed Photography - Part 1. Project FeaturesProduces white light flashes for high-speed photography and multiple exposuresHigh flexibility / reconfigurability (menu controlled)Low cost (no flash unit needed, mostly cheap parts)Simple hardwareNo recharging time as for conventional flash lightsIntroductionSome of the ideas I have take years until I actually put them into practice - be it because there are other, more interesting things to do, be it because I can't find some of the parts or be it because I can't solve some of the problems involved with it. The LED stroboscope was one such project. I had no idea whether a power LED would be bright enough for what I planned. And power LEDs were just too expensive for trying. The basic idea was to use bright white LEDs to build a flash unit for photography. This could be used to take high-speed photographs (just generate one short flash when triggered by a sensor) or to take multiple exposures by generating a train of flashes.
For development, that was it. Success! LUXdrive LED Drivers. Power LED shield. I'm giddy to announce that I'm about ready to send my first ever PC board design out to BatchPCB! I've always wanted to make an Arduino shield and after reading all the posts on how to drive LEDs or make an aquarium light system, the idea finally came to me to build a power LED driver shield. The power LED shield will be of specific interest for: aquarium owners, indoor growers, entertainment lighting, high-efficiency indoor lighting, bike headlights, nocturnal robotics :-? And the usual hobbyist and enthusiast crowds. While I may sound like I'm already almost done with it, I'd really like to hear if anyone has ideas, feedback or suggestions on features that I might be able to add before having the PC board fabbed.
Once I do some more verification on the schematic and board design, I'll post pics. Here's a rundown of the current features:o Duemilanove (and Mega?) Lemme know what you think! Cheers all! EDIT: Misstated the output wattage at 156 watts. wooops! CS1. Chester's Garage. XLamp XR-E LEDs, leading the revolution in lighting. Your email address (if you want a response). must have at least 0 and no more than 256 characters.The value of the Your email address (if you want a response). field is not valid. Such as Internet Explorer, Firefox, Chrome, Safari, Opera, etc.)Your browser must have at least 0 and no more than 256 characters.The value of the Your browser field is not valid. Your browser version must have at least 0 and no more than 256 characters.The value of the Your browser version field is not valid. The URL you were trying to find (if you know it). must have at least 0 and no more than 256 characters.The value of the The URL you were trying to find (if you know it). field is not valid.
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