I am using Arduino to remotely trigger a shutter action. All is well, until I hook up a USB cable on the 4 regular USB pins. This cable runs between a Sony camera and a printer. But I can not take an image when the D+ and D- are connected.
At this moment I have a manual switch in the usb cable. It works, but I would rather have Arduino kill the line, take the image and restore the line.
I understand I can use a relay, but is there another way?
Is a TRIAC an option? How would I need to hook up the components.