The Universal Serial Bus (USB) is used extensively by computers to provide additional peripherals and expansion through a common standard connection. We will use the
pyusb Python library to send custom commands to connected devices over USB.
The following example controls a USB toy missile launcher, which in turn allows it to be controlled by our Python control panel. We can see that the same principle can be applied to other USB devices, such as a robotic arm, using similar techniques, and the controls can be activated using a sensor connected to the Raspberry Pi GPIO:
The USB Tenx Technology SAM missile launcher
