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Questions tagged [pov]

POV stands for Persistence Of Vision

0
votes
0answers
38 views

Mount a detachable LED strip to spokes of bike

I have an LED strip and Arduino I have mounted onto the spokes of a bike using twist ties (like this: https://learn.adafruit.com/bike-wheel-pov-display/install-on-bike). I want to make it detachable ...
-1
votes
1answer
163 views

POV( Persistence of vision ) : Syncing the Refresh rate of LEDs with rotation

I am trying to make a POV globe and my block diagram is the following: The goal was to make one without using microcontrollers and using basic components available. My main query is that : What ...
2
votes
2answers
4k views

Rotating POV LED Cylinder Using Addressable RGB LED Strips

​My son and I are trying to build a somewhat large Rotating POV Cylinder (or Globe) making use of ready-made Addressable RGB LED strips (WS28011 or LPD8806?). After some browsing, we found that many ...
-1
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2answers
1k views

Arduino pin frequency for persistence of vision (POV) project

Arduino Uno has 4 pins that run at 960 Hz and 2 pins that run at 490 Hz. Are those frequencies fast enough that I can change the strips that lights up the LED and create the illusion that it lights ...
4
votes
3answers
5k views

LED persistence of vision (POV) project

I recently saw an article with a LED cube 8x8x8. I saw that it relies on an optical phenomenon called persistence of vision (POV). So I wanted to create a simple circuit with 4 lines each one with ...
6
votes
3answers
28k views

How to build a POV display?

I've recently gotten the itch to build a POV Display. I'm wanting to build the sort that rotates "vertically" (like a fan or bicycle rim) and I'm finding very little information on how to actually do ...
5
votes
4answers
10k views

Determine the angle and speed of a rotating platform

I have a 1 axis (x) spinning platform, that is spinning pretty fast ~300 RPM. I want to be able to detect with a good degree of precision how many degrees it has travailed from its starting position ...
3
votes
5answers
2k views

Arduino Mega 2560 like board but with more ram

I am making a POV RGB LED Globe that plays animations on its surface. Currently I am using a Arduino Mega 2560 with 256k of Flash Memory. My program and the boot loader take up 20k of memory leaving ...
10
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7answers
2k views

Power for POV display

I want to build a small POV display, but how is the power (and if possible a communication line) transmitted to the spinning part? I've looked at some POV project, but they usually don't explain that ...
19
votes
1answer
4k views

What makes a good RGB LED

I am looking for supplier for RGB LEDs for an upcoming project RGB POV LED Globe. Normally I would go to my local electronics supply story, but this project requires lots (~1000) of LEDs and my local ...
7
votes
3answers
4k views

POV globe speed questions

I am planning on creating a RGB LED POV globe only physically larger then that one. I am planning on using 64 RGB LEDs, requiring 3x pins per LED for a total of 192 outputs. Obviously I am going to ...
7
votes
3answers
11k views

Which SIPO chip is better, 74HC4094 or 74HC595 or something else?

I want to drive lots of LEDs in a spinning persistence-of-vision (POV) device. I need one output pin per LED, because matrix techniques don't work right in spinning POV devices. A serial-input, ...