Motion PoV

[philspitler]

Hi, I'm wanting to make a PoV display that will show low-res video / animation.

I'm hoping to use 144 LED / meter APA102 LEDs and thought a Teensy could work well.

There are lots of tutorials out there for POV using static images but I really want to see motion.

Ideally a standalone controller but could also use OPC to send data via wifi.

Any thoughts or useful links?

Thanks.

Phil

 

[PaulStoffregen]

I'm assuming you're going to map 1 video frame to each POV revolution?

If reading from a SD card, that ought to be fairly simple. You'll just read the next data into another buffer. The trick is getting the LEDs updated while you're also managing to keep the incoming data flowing into the other buffer. Then just copy the buffer to the buffer you're using to update the LEDs as they moving through the 360 degrees.

If the video is some sort of live streaming, you're probably going to need some sort of protocol to tell the transmitter the pace for matching the rotation speed....

 

[philspitler]

I'm assuming you're going to map 1 video frame to each POV revolution? ]

I don't think I want to match the rotation to the frame rate, the rotation maybe something like 1000 rpm but the frame rate on 30fps.

Thanks

Phil