I added face tracking to the Doorman, creating the Watchman! The eyes will track your face as you move past.

I made design changes, most notably to incorporate Google's AIY VIsion board (for face detection) and to incorporate Will Cogley's Advanced Eye mechanism

Video of tracking: https://www.youtube.com/watch?v=xo8RRXo4SKw

More detail on what I changed:

• Designed face structure to securely package electronics and allow quick access.
• Integrated Google's AIY Vision Hat for offline face tracking.
• Added batteries for mobile use.
• Wrote Python and C++ programs to find faces and direct servo positions.
• Adapted and upgraded eye mechanism - using Will Cogley's (Nilheim Mechatronics) advanced eye mechanism.
• Designed laser accuracy tuning hardware  - integrated lasers to tune eye mechanism accuracy.

The eye mechanism STL's I uploaded are parts that I used instead of the equivalent parts from Will Cogley's eye mechanism. To build this eye mechanism, you should follow Will Cogley's very useful guide, and substitute my parts where needed.

The face structure prints as a single piece, I printed in PLA and had great results.

Safety note: If you make this project and use the laser calibration eyes, don't test with your face! Use a printed photo, drawing, etc to activate the facial recognition. Lasers can cause permanent eye damage.

Code for this project can be found on Github Read more about this project on my site: https://grahamjessup.com/watchman/