Hello Buccaneers,
I present you a Tiny Bot (70mm70mm40mm) using a Raspberry Pi Zero with excellent Explorer pHat and Pan Tilt Servos :
It’s possible to control it by Wifi with Scratch :
OpenCV Servo Face Tracking :
Thingiverse : http://www.thingiverse.com/thing:2004812
Best Regards.
JLed.