Hello pros, I'm Thanh, living Saigon, Vietnam and I looking for the way to shutter (at the same time) multiple camera, I saw your post and this is very interesting for me, your way is my look. I read your post very careffuly but don't know the way to connect core for Yi camera's electronic, Could you please help me more detail to make this? Or can you recommend the link/website, which guide to make step by step? Thank you very much for your advice. Thanh!