This is the first update of our project. For the past week, we have been working on using EOG to sense eye orientation and the mechanical design of the robot eye. This post talks about the version 1 of the mechanical design:
We use 2 servos for each camera, the bottom one controls the yaw of the eye, while the side one controls the pitch of the eye. Such a design can ensure the camera is rolling like an eyeball, with its center fixed and all rotations are about the center.
We also used Adafruit 16 channel servo driver to expand the number of servos controlled by a single Raspberry Pi.
Details about this driver can be found via this link: https://learn.adafruit.com/adafruit-16-channel-servo-driver-with-raspberry-pi?view=all
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