This is a circuit I was hoping I would not need to build. Guess I have to :-(
I am putting approx 60-70 cameras in series - http://chdk.setepontos.com/index.php?topic=4103.0
For a film - www.mishra.tv
To film some gymnasts.
The camera is running CHDK firmware and is triggered with a 5V pulse. I want each camera to have a 10ms delay over the previous one.
So, if C1, C2 ... Cn are cameras
and D1, D2, ... Dn are delay circuits
and Pulse denotes the ON trigger pulse (just a simple switch I will turn on and off)
The circuit is
Pulse --- D1-C1---D2-C2--...--Dn-Cn
I looked at a simple RC circuit with a relay on the end. However, I am not sure about the relay driving another RC-Relay circuit.
Then I thought of a 555 circuit - then I figured out that the size of the circuit would mean lots of soldering (when you consider 60-70 circuits).
Is there an IC available that is preprogrammed for a 10ms delay ? Easy enough to solder it to a really small board, solder inputs, solder outputs and on we go.
Just hoping for ideas!
EDIT:- My earlier thought was to do it in software. But I would need to program each camera with a different delay. And the setup would cause problems if I rearrange cameras or add new cameras.
I am putting approx 60-70 cameras in series - http://chdk.setepontos.com/index.php?topic=4103.0
For a film - www.mishra.tv
To film some gymnasts.
The camera is running CHDK firmware and is triggered with a 5V pulse. I want each camera to have a 10ms delay over the previous one.
So, if C1, C2 ... Cn are cameras
and D1, D2, ... Dn are delay circuits
and Pulse denotes the ON trigger pulse (just a simple switch I will turn on and off)
The circuit is
Pulse --- D1-C1---D2-C2--...--Dn-Cn
I looked at a simple RC circuit with a relay on the end. However, I am not sure about the relay driving another RC-Relay circuit.
Then I thought of a 555 circuit - then I figured out that the size of the circuit would mean lots of soldering (when you consider 60-70 circuits).
Is there an IC available that is preprogrammed for a 10ms delay ? Easy enough to solder it to a really small board, solder inputs, solder outputs and on we go.
Just hoping for ideas!
EDIT:- My earlier thought was to do it in software. But I would need to program each camera with a different delay. And the setup would cause problems if I rearrange cameras or add new cameras.
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