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Adafruit servo hat

After some brief struggles with a cheap servo controller, i bought the Adafruit 16-Channel PWM / Servo HAT for Raspberry Pi – Mini Kit from RobotShop. This is easy to setup and works well! And really not much more expensive than the really cheap one.

Tutorial: Adafruit 16-Channel PWM/Servo HAT for Raspberry Pi. Make sure you use the up-to-date code rather than the original mentioned in some of the tutorials… It can be found on GitHub: Adafruit_Python_PCA9685.

The Adafruit controller is pretty basic, but that shouldn’t be a problem with ROS and a major processor backing it. Other servo controllers can remember poses and specify speed and delays… these functions will have to be performed by the main processor. This may pose a design risk, which would result in having to replace the controller with a more expensive and complex one later… but this should get us started easily.

Posted in Make, Robotics.

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