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Jeremy Blum

Jeremy is an Electrical and Computer Engineering Student at Cornell University. He has been building microcontroller projects since high school, from a prototype prosthetic hand with a novel control scheme, to a nerf gun that fires at the intruders and uploads their picture to the web.

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e14 Contributor over 15 years ago

Hello Jeremy and thanks for this post

i need your help because i don't know if muy project is possible
i would like to trigger a camera with arduino and a IR sensor but this trigger must be done 18 i/s
that is:
an IR sensor will be activated 18 times in a second. Each activation will trigger the camera via Arduino.
is this possible?
is there a no so much expensive camera who supports this?
thanks a lot
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e14 Contributor over 15 years ago

Jeremy, I'm really enjoying your tutorials...I am completely new to the arduino or any programing for that matter. I was wondering if I have an idea of what I want the arduino to do, is there a place where I can virtually build what I want online. This way I can visually see how things will go together and what I need to order. Or is there some where I can go to have someone tell me what I need and how to build it. Thanks for all your help and I really appreciate you taking your time to help everyone!...Jeffrey
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e14 Contributor over 15 years ago in reply to tronixstuff

ThankU
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WestfW over 15 years ago in reply to e14 Contributor

i would like to trigger a camera with IR sensor [to be] activated 18 times in a second. Each activation will trigger the camera via Arduino.

The Arduino is easily capable ot handling 18 events a second, but there are very few cameras that can be activated that frequently (there are very few still cameras that will take 18 pictures per second, even when activated in "continuous shooting" mode. Not counting video, which is normally much lower resolution.)
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wb8nbs over 15 years ago in reply to WestfW

I am no expert, but perhaps a video camera arranged for Stop Motion?
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sciguy14 over 15 years ago in reply to e14 Contributor

There could be a number of reasons why that would happen. Have you tried forcing it with the -F option?
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sciguy14 over 15 years ago in reply to e14 Contributor

You need to map the 0-5V values first from 0-1023. If 0V is 0, and 5V is 1023, then 2V is 409.

You would read the values, then compare:
if (analogRead(0) < 409) {
digitalWrite(2, HIGH);
digitalWrite(3, HIGH);
digitalWrite(4, LOW);
digitalWrite(5, LOW);
}
else{
digitalWrite(4, HIGH);
digitalWrite(5, HIGH);
digitalWrite(2, LOW);
digitalWrite(3, LOW);
}
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sciguy14 over 15 years ago in reply to e14 Contributor

You are not going to find a cheap camera that supports that. You'd be better of with a video camera.
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sciguy14 over 15 years ago in reply to e14 Contributor

Not that I've used... You can put a schematic together first that will help you to visualize things...
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e14 Contributor over 15 years ago

I'm in the proceess of making a fight stick from a wired 360 controller. How to I connect the Left and Right Triggers to Sanwa push buttons? I'm using a MadCatz wired controller.
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