What is it that we like so much about inefficient, noisy clocks made with inappropriate technology? Answer the question for yourself by watching the video (below) that [David Henshaw] sent us of Dottie, the flip-dot clock.
But besides the piece itself, we really like the progression in the build log, from “how am I going to do this?” to a boxed-up, finished project.
Another stunning aspect of this build is just how nice an acrylic case and a raft of cleverly written software can make a project look. You’d never guess from the front that the back-side was an (incredible) rat’s nest of breadboards and Ethernet wires. Those random switching patterns make you forget all the wiring.
And the servo-steered, solenoid-driven chimes are simply sweet. We’re sure that we’d love to hear them in real life.
We tracked down the referenced electronics.stackexchange post with the circuit diagram, and we’re guessing that the diodes actually allow a simplification of the driver circuit. Perhaps our readers will be up for the challenge. Not that we’d be in any hurry to even touch those breadboards…