Slow Motion Video Booth

Community Projects
1

Hey All,

I’ve tinkered for a while but never mastered any of this.

I’m putting together a Slow Motion Video Booth at work. I have an external Monitor/Recorder that has a built in GPIO port, which operates at 3.3v. Using that port I was able to trigger a recording with a simple momentary switch.

The question I have is how do I emulate that with an Arduino(5v)? Will a TIP120 work or is that only for higher voltages? Should I use an optocoupler to isolate voltages? I have been able to find a lot of info about controlling 5v with 3.3v, but not the other way around.

Thanks for any help in advance!

Monitor:

https://www.videodevices.com/products/p … ers/pix-e7

Monitor User Manual (Page:81 for GPIO Info):

http://cdn.videodevices.com/download/gu … 7ug_en.pdf

2

I got it to work with a optocoupler (4N35) :smiley: .

Not sure if it’s the only solution but it seems like the best in this case, since I have a $1200 monitor that I don’t want to fry with a $20 Arduino.