A quick look at the new 3D printed animatronic eye mechanisms I've built. Starting in the next few weeks, I'll be releasing a ...

I usually make a quick servo tester on a breadboard and use the serial monitor in the arduino IDE to get the servo positions, ...

The code includes two Arduino libraries: one for the servo and another for the ultrasonic sensors. The main code is a simple 14-line piece with a simple if-else statement you can readily modify.