Throw out your old wall clock. You'll be bored with it the moment you're finished assembling your own persistence-of-vision (POV) clock. Projects based on POV—the phenomenon by which your eye very briefly continues to see an image after it has disappeared—use a moving display to show what looks like a static image. But instead of featuring only a single fixed message, this model shows you the current time on a continuously updated rotating display.
Just program a POV kit from Adafruit Industries ($17.50; adafruit.com) and mount it on a motor-powered spinning paddle. (We've already written the code that outputs the time—you can download it from popsci.com.) The clock's backing is left to your creative hands to build; we made a faux floorboard enclosure. No matter what you choose, though, once it starts spinning, you won't be able to take your eyes off it.
Build Your Own Space-Age Clock
Time: 7 hours
2. Program the POV kit's microcontroller with the software we've written [download here]. The software is preprogrammed for a start time of 12:00. You can change it to the correct time before programming the microcontroller.
3. Mount the motor on the back of the clock. Build the motor-speed controller using the schematic provided on popsci.com. Connect it to the motor and the power supply.
4. Plug the battery into the JST right-angle connector on the POV kit. Turn on the power supply, and adjust the motor-speed controller until the POV display is easily readable.
5. Plug the battery into the JST right-angle connector on the POV kit. Turn on the power supply, and adjust the motor-speed controller until the POV display is easily readable.
links dead for the software programing
A picture is worth a thousand words and I am not impressed with this picture. The only place I'd hang that cloct is in the trash can.
hi i have a question. what motor did you use and where can you get one?
You can buy a clock like this for hlaf as much (maybe less) then just pull out the guts and assemble them onto your own framework. cheaper, easier, and lets you put more time into a more creative framework (instead of using floorboards and making it look like trash).
Jesus, you guys are dicks. I guess penny arcade was right: