I am creating a custom little Circuit Board to feed 2 cameras, will this work?

Damageinc333

2

I am creating a custom little Circuit Board to feed 2 cameras, will this work?

« on: 23 / April / 2010, 00:51:31 »

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I am creating a little PCB to take the lead from my Ricoh CA-1 and send it to 2 cameras. I am basically making a USB 'y-splitter' (connecting pin1,2,3,4 coming off the remote to pin1 of USBOUTA & USBOUTB which will go to camera L&R respectively.

Can anyone confirm that this will this work? Or will I run in to voltage drop due to the small battery in the Ricoh feeding 2 cameras?

Here are a few images some images of my project. I hope to etch this weekend. I did disassemble the Ricoh and found that only VCC and Ground are used. This is consistent with what I have read in the CHDK wiki and elseware. However I decided to still route D- and D+ on my board just in case it could ever be used for something else down the line.

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seuros

4

Re: I am creating a custom little Circuit Board to feed 2 cameras, will this work?

« Reply #1 on: 23 / April / 2010, 14:37:59 »

Do you have a schema ?
It not easy to understand what you want to do if you provide only the pcb.

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Microfunguy

4037

Re: I am creating a custom little Circuit Board to feed 2 cameras, will this work?

« Reply #2 on: 23 / April / 2010, 15:17:31 »

Quote from: Damageinc333 on 23 / April / 2010, 00:51:31

Can anyone confirm that this will this work?

Did you know that you can buy double-decker USB receptacles ?

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Or will I run in to voltage drop due to the small battery in the Ricoh feeding 2 cameras?

It will easily drive thirty cameras, the USB connector input resistance is tens of Kohms.

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However I decided to still route D- and D+ on my board.

You cannot do that.
It is like trying to make the cameras talk to each other.

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seuros

4

Re: I am creating a custom little Circuit Board to feed 2 cameras, will this work?

« Reply #3 on: 23 / April / 2010, 15:23:30 »

Connecting the d- and d+ can damage the cameras

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Damageinc333

2

Re: I am creating a custom little Circuit Board to feed 2 cameras, will this work?

« Reply #4 on: 23 / April / 2010, 17:46:44 »

First off Thanks much Microfunguy and seuros for your quick replys.

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Did you know that you can buy double-decker USB receptacles ?

Yep, I have a few around here, however it is not gong to work for the case I have.

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Connecting the d- and d+ can damage the cameras

Ouch!, Thanks for the heads up. This will certainly make things a lot easier. I am glad I haven't etched yet.

Thanks again!

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seuros

4

Re: I am creating a custom little Circuit Board to feed 2 cameras, will this work?

« Reply #5 on: 23 / April / 2010, 19:42:01 »

You should think in changing your design .
I can give you a better design (pcb)
if you give what are your requirement

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