3D print: Cat head for Bittle
I've been designing an alternative head for Bittle since April. It can be mounted on the existing head servo and equipped with an ultrasonic distance sensor.
Edit: The files are online at https://www.printables.com/model/993292-servo-rotatable-cat-head-with-slot-for-distance-se



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@Rongzhong Li I just found out through another thread that there is a custom Petoi RGB distance sensor for the NyBoard. Don't you sell these anywhere? https://docs.petoi.com/extensible-modules/ultrasonic-sensor