The SG90 micro servo can rotate approximately 180 degrees (90 in each direction) and works just like the standard kinds you’re used to but smaller. You can use any servo code, hardware, or library to control these servos. Good for beginners who want to make stuff move without building a motor controller with a feedback gearbox, especially since it will fit in small places. Of course, it is not nearly as strong as a standard servo. Works great with the Motor Shield for Arduino or by just wiring up with the Servo library.

To control with an Arduino, we suggest connecting the orange control wire to pin 9 or 10 and using the Servo library included with the Arduino IDE. Position “0” (1.5ms pulse) is middle, “90” (~2ms pulse) is all the way to the right, and “-90” (~1ms pulse) is all the way to the left.