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Author Topic: Instructions for DIY chronos.
Awesheim
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Posts: 21
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Post Instructions for DIY chronos.
on: February 1, 2015, 14:48
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Hi.

I'll start this post by saying that I in no way am an engineer or anyone who should have any experience with electronics or soldering. But I bought the DIY set because I wanted to learn.

I have read trough the instructions several times and I have understood most of it. But I have a few questions.

1:
I can't seem to find any mention of where and how the optoisolator should be placed on the breakout board. I think I have it figured out by looking at some of the photos, but Im not sure about the direction it should be placed. Is it bidirectional, or should it be placed in a specific direction?

2:
Does it matter when i install the program to the arduino? I have a extra button that I'll hook up to the display so I'm thinking that I can just install it after I have soldered it all together. Am I right?

3:
(This question will reveal exactly how little I know about this stuff, but I'm learning.)
Does it matter what way the resistors are placed? (I'm guessing it doesn't, but I want to be sure.)

That's all for now. There will probably be more questions as I get started.

I'm a graphic designer and illustrator by trade, so I'm thinking about redesigning the breakout board instructions. Its mostly to force myself to get to learn where and how every part goes, but if you like and if they turn out less confusing than the original It can my contribution to this opensource project.

-Olav Åsheim

Chris@Chro-
nos
Administrator
Posts: 137
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Post Re: Instructions for DIY chronos.
on: February 1, 2015, 14:55
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Good Morning Olav!
1 There is a small dot on the optoisolator that should go on the bottom right.
2 I would build out the board, then program the arduino then install it. You can program after it is installed but make sure you have that display switch before you do so. :)
3 The resistors can be installed in any direction :)
4 if you put something like that together i would be happy to post it on the site, i am not much of a graphics artist. ;)

Awesheim
Newbie
Posts: 21
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Post Re: Instructions for DIY chronos.
on: February 1, 2015, 17:02
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Thanks, and good morning to you too. It's evening over here though. :P

1: Ah, I see. Thanks.

2: Great.

3: good to know. :)

4: I'm already on it. I'll give it to you when it's done. :)

Thanks again. :)

Awesheim
Newbie
Posts: 21
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Post Re: Instructions for DIY chronos.
on: February 4, 2015, 14:38
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a couple more questions.

On the chronos kit shield wiring diagram under the "in" "set" "reset" "out" buttons it sais: "not polarity sensitive", does that mean that it doesnt matter which of the pins I solder the wire to?

Can I use a standard 3,5mm audio jack from the controller to the camera (with the proper adapter to fit the camera)
I saw that the DIY kit came with a 3,5 jack-plug, but I allready have a standard 3,5 jack to jack that I can use.

Flozc
Newbie
Posts: 9
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Post Re: Instructions for DIY chronos.
on: February 9, 2015, 18:06
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That is correct, the switch just closes the circuit when you push it. In other words, it connects the two wires as long as the button is pressed.

There should not be any issue to use another 3,5mm jack as long as you know witch pin who goes to which pin on the jack plug:

http://thechronosproject.com/chronos-to-emotimo-sync-cable/

If you have a multimeter you can measure it to make sure you got the pin config correct.

Based on your name, I assume that you are from Norway, like myself. If you have found a antibacklash nut bracket in Norway, I would be glad if you could share where you got it from.

Awesheim
Newbie
Posts: 21
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Post Re: Instructions for DIY chronos.
on: February 9, 2015, 20:20
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Great. Then this diagram could be cleaned up a bit more.

I was thinking about not having to solder my own cable, just using a regular jack to jack cable witch I allready have. Is that possible?

You are correct, I live in Trondheim. :)
I havent, I just have a normal leadscrew nut. I ordered the screw and nut cheap from england. And I'm feeling that I shouldnt have. :P

Flozc
Newbie
Posts: 9
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Post Re: Instructions for DIY chronos.
on: February 10, 2015, 15:19
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You could use the cable you already have. On the jacksocket you have to figure out witch pin you need to connect to the optoisolator. The jacksocet I use have 6 pins. If you use a Canon DSLR you can try to short two of the pins on the jacksocet, try different combinations until the camera take a picture.

Chris@Chro-
nos
Administrator
Posts: 137
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Post Re: Instructions for DIY chronos.
on: February 10, 2015, 15:25
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http://www.doc-diy.net/photo/remote_pinout/

this is the site i use as reference when building my cables

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