2
Index:
Introduction
pg. 2
Overview
pg. 3
Testing and Adjustments
pg. 4
Using a Microphone
pg. 6
Optional Devices
pg. 7
Introduction:
Scary Terry has allowed us at Computer & Electronic Services to produce a
Cowlacious Designs circuit board from his original design. Over the years
we have changed it a little bit, but the main circuitry is still Terry’s! We thank
him for the great circuit he designed for everyone to enjoy!
Scary Terry describes the circuit as follows:
“My goal in creating this was for a simple, inexpensive and reliable circuit
that doesn't require programming a microcontroller for each individual
movement. I've used several of these circuits over the last couple of Hal-
loween's to drive Bucky (skeleton skull) and other animatronic heads, and
they worked all night long without fail.”
“As long as there is sound present, the servo will drive to its "max" position.
If the sound is short in duration, the servo will not have time to drive to
"max" but will drive part way and return to "min" position. While this method
of moving a mouth is not perfect, it's pretty good and I'm very happy with
the effect. It's important to remember that any sound will drive the servo,
voice, music or noise, so if you're trying to make a Bucky mouth move to a
voice track, you shouldn't have music in the background of that particular
track.”
Terry’s web site is:
