The
Raspberry Pi can directly control many
servos at once via software. Each numbered GPIO pin
can manage a
servo. It is, however, not recommended to power the
servos with the
Raspberry Pi. Instead, they should connect to an external power supply.
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Thankfully ... the PI does have HW I2C available, which we can use to communicate with a PWM driver like the PCA9685, used on Adafruit's 16-channel 12-bit PWM/Servo Driver! Using this breakout, you can easily drive up to 16 servo motors on your Raspberry Pi using our painless Python library and this tutorial.
