Arduino Craft & Design

Andy Holtin, Assistant Professor of Sculpture at American University, in Washington DC, just posted an in-progress video of an installation project he’s working on called Glance. He writes:

I’m using the audio line from the DVD to sync eye movement with the Arduino (used the Pro Mini this time and loved it) through an opto-coupler as input. Physically fun, too — used casting processes to copy some gears, and etched my own PCBs for the first time. Maybe I will do a build blog for this one.

Note to Andy: Please do! [Thanks, Alberto!]

8 thoughts on “Andy Holtin’s “Glance”

  1. Cool project.

    I wonder if it would have been possible to do this even without the Arduino, by recording servo pulses directly onto the audio track of the DVD? It seems conceivable that they would make it through the DVD player’s audio filters without too much harm.

    1. You probably could, but you’d need to boost the levels up to the 5V needed by the servo inputs. A simple op-amp comparator circuit powered from 5V with the trigger level set fairly low would do nicely to boost the levels back up and square up the pulses that might get a little munged by the audio filters.

  2. I loved it! I couldn’t look away – I was hoping that a random different glance would occasionally happen – I think I fell in love with the woman – beautiful!

    I’m having trouble registering – it keeps saying, ‘Text entered was wrong. Try again.’ I’m sure I did the capcha right, does my user name need to be one word?


Comments are closed.


Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. And he has a new best-of writing collection and “lazy man’s memoir,” called Borg Like Me.

View more articles by Gareth Branwyn