Cool post from lucadentella.it.
After having brought a Raspberry Pi Zero, I asked myself how to access it and do some initial configuration because of in that moment I hadn’t an HDMI monitor or an USB keyboard and a mouse.
Fortunately, this Raspberry model supports USB OTG (On The Go): it can “become” a slave USB device such as a storage device, a HID peripheral or even a webcam. Today I’ll show you how to configure a Raspberry Pi Zero so that it will be identified by a PC as a network interface: we’ll be therefore able to connect to it via SSH using a simple USB connection.
More importantly, we’ll be able to do all the configuration steps working directly on the SD card, without the need to connect the Raspberry to external peripherals (monitor, keyboard…).