Having vision capability is essential to your rock, paper, or scissors robot. Fortunately, adding hardware and software for vision is both easy and inexpensive.
Connecting a USB camera is very easy. Just plug it into the USB slot. To make sure your device is connected, type
lsusb. You should be able to see this:
The following screen shows a creative webcam located at
Bus 001 Device 004: ID 041e:4095. To make sure that the system sees this as a video device, type
ls /dev/v* and you should see something similar to the following screenshot:
/dev/video0 is the webcam device. Now that your device is connected, ...