I have tested a ATTiny-based device that does exactly what you want but the developer has not worked on it for months.I could ask him if I could send you the microcontroller binary or you may be willing to continue development.
While you are at it, you could use a once-per-frame autofocus led pulse to measure assumed synch between the cameras in video mode, something needed for some time.
What is the right place (source filename / function name) to wait for an incoming pulsed signal
So somebody else thinks this idea could work
Sorry I don't know what you mean
SDM stereo users usually want to record synchronised movies.
Unlike the still-image capture, the task cannot be paused, it is probably driven by a hardware timer.
o, we need to measure synch instead and keep restarting cameras until it is acceptable.
A suitable combination of flashing and steady bicolour led's can indicate the degree of synch.
I thought stereo video is not that big problem
one can start two video cams and then later on sync the film using SMM or similar.
You mean the original's firmware task taking videos?
this one cannot be paused to sync?
you want to restart the cams until the sync is acceptable?
Don't know what that means, 'flashing and steady bicolour led's' are they inside the cam?
I can also place a foto diode on each cameras LED
Is this true that I can also read the voltage of the USB?
else if(!get_usb_power(1) && usb_on) { usb_on = 0; draw_string(ovr_x,ovr_y," ",MAKE_COLOR(COLOR_TRANSPARENT,COLOR_TRANSPARENT),1); }
else if(!get_usb_power(1) && usb_on) { usb_on = 0; sprintf(osd_buf,"%3d",get_usb_power(0)*10); draw_string(ovr_x,ovr_y,osd_buf,MAKE_COLOR(COLOR_BLUE,COLOR_WHITE),1); }
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