I&#x27;ve always just used this <a href="http:&#x2F;&#x2F;www.adafruit.com&#x2F;products&#x2F;954" rel="nofollow">http:&#x2F;&#x2F;www.adafruit.com&#x2F;products&#x2F;954</a>  and connect to the pi via serial.   Although with the 0 it would require soldering on 2-4 pins.