I'm starting in the Arduino world. I've been reading a lot on the subject and I have a few questions regarding a project in which I'm trying to get involve.
I want to control my Canon EOS 7D with a joystick using Arduino. I ran with this two projects.
Both have parts of what I'm trying to achieve. The main doubts that I have are related with the USB port. If I want to connect a USB Joystick to Arduino and then the Arduino to the camera using USB, Do I need to have two USB host shields?
How is it that in the first example the Wii gamepad is connected straight to the Arduino? Can I do that with an USB generic gamepad?
If I start the project with a regular USB gamepad, Do you think I'm going to be able to replace it with a wireless gamepad on the future?
Is it possible to take advantage of the USB port that, the Arduino UNO already have?
As you can see, a little of orientation would be good!, THANKS!!