This post was last modified: 2019-03-04, 19:22 by
Berdine.
Please find answer to your question below:
Which input of the Arduino are you going to? IRQ?
- I just use an INPUT_PULLUP on pin 11
Have you ever tested with very short exposure times?
- I have not tested very short exposure time. I made short time-lapse of 10 - 15 s so for the 1000 mm rail I have to move by 2.5 mm and for the 800 mm rail it’s a 2 mm move between shot. It takes much more time to move that distance with the screw driven rail compared to the belt rail. The loop is built in a way that checking for the camera signal is done after the move of the slider is finished. As a result if a signal comes while the stepper motor is still working it will be skipped.
For the belt driven rail at 2 mm, I never went below 1 second but I recon it’s possible to go less than that. For the screw driven rail at 2.5 mm, when I go under 1.5 s a shot is skipped time to time. A 2 seconds interval works fine. Of course if you increase the number of shots to 600 or 800 then the distance to move between shots will be smaller and as a result the time interval could be smaller.
Do you have a delay between flash contact end and start motor?
- No I don’t