Arduino POV Version 1.0 thru 1.11

This is the first real thing i have made with arduino. I like it.

for those who don't know, a POV is a Persistence Of Vision display. this version spins really fast, and the sequence of lights flashing fool your eyes into seeing patterns. such as letters.

song: Still Grey by Pendulum

Edited in Sony Vegas 8

pass along any tips please. any features you want to see?


by the way, my version numbers are as follows:

a value in the 1ns place is a different physical design from the last. or 1, 2, 3 ext...
a value in the first decimal place indicates a small physicla change. or 1.0, 1.1, 1.2 ext..
a value in the second decimal place is a brain upgrade. so 1.11, 1.12, 1.13 ext...

Category:

Science & Technology

Tags:

• Arduino
• POV
• Persistence
• Of
• Vision
• Led
• Blue
• Array
• 3mm
• Duemilanove
• LOVE
• ARDUINO

[MrHellsguardian00]

which motor are you using? and how did u made its rotation so stable?

i made a pov display but the pcb has some bad vibrations and since i am using a simple dc motor, i am unable to calculate exact speed of motor forcing me to go for hit and trial method.

[skierplaterandy]

@MrHellsguardian00

I would not call the rotation of mine by any means stable. The thing would jump off a table if you let it.

I think the motor I'm using came out of an old printer. It had higher torque and slower turning than the other dc motors I had, that's why I picked it.

Its all about weight balence, that's why mine was so unstable. I just guessed where it was and used epoxy to put it there, and that failed.

I tried adding weight but it didn't help.

[campbellprowl]

Would induction power work?

[skierplaterandy]

@campbellprowl

It could, but it's not practical. You'd need big coils and capacitors to make it stable enough to power the arduino board. It could work, but the board might reset a bit.

[rohitsay89]

hii andy saw the video its great to make it.. amazing. i love it. i also have arduino with me can you plz tell me pin connections of led with arduino and the code.plz

[skierplaterandy]

@rohitsay89

unfortunatley i do not have the origional source code anymore. What i can tell you is that it wasn't at all complicated.

ok so what i did was used a light sensor and hooked it up so i have it on an analog pin to 5v, and then from that pin to ground. this will output a voltage that you can test for.

basically i hooked up each led through a resistor to its own pin, and turned them on and off with delays to draw letters. takes some time to get the timings right.

[Marcin2418]

Great project, just have one question :) what is the rpm of the motor? Thanks in advance, Marcin.

[skierplaterandy]

@RavenRof good question.

The motor is actually being powered by an external wall adapter at 12 volts.

I would exclude the battery if i could, but there is no easy and reliable way to do it, so i used a second power supply (9v)

[RavenRof]

how do you power the motor with the 9v battery without entangling the wires, while it rotates?