Servo motors are typically driven using the PWM outputs available on most embedded MCUs, but the Pi doesn’t have native HW support for PWM. It does have HW I2C available, though, 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.
Each Friday is PiDay here at Adafruit, be sure to check out our posts, tutorials and new Raspberry Pi related products. Have you tried the new “Adafruit Raspberry Pi Educational Linux Distro” ? It’s our tweaked distribution for teaching electronics using the Raspberry Pi.
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Maker Business — “Analog Devices to Buy Linear Technology for $14.8 Billion”
Wearables — Practice patience
Electronics — Look to ferrites (no, not ferrets, the European polecat) when faced with high frequency
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