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My own POV toy for fun!

All > Tech > Hacks/Mods > Toys > My own POV toy for fun! by seemanta

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This POV toy was inspired by the Binary/POV clock by Natetrue which fascinated me very much.
For this project, I have used an ATMEL AT89S52 microcontroller which is based upon the 8052 core.

I have used a column of 8 LEDs for creating the POV effect. The code for this is quite simple and so I have not bothered to post it here. You can post a comment if you want it.

Initially it was not working properly because the delay I had used between lighting up each column was about 40 milliseconds.

Then after some searching on the net for similar POV toys led me to believe 10 milliseconds might be a good delay.

And sure enough, 10 milliseconds made it work. I guess that it is the optimum speed taking into consideration the speed of the moving arm.

So here it is, my latest POV toy. Comments are welcome!
Below are some time progression snaps that I took when I was making it.

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Just when I started building this thing. Finished off soldering the main IC base and the oscillator crystal.

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After soldering the LEDs.

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A view of the back side. I was too lazy to print a PCB and so used a pre-drilled board to make it.

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My battery pack of 4 AAA cells, giving about 6 Volts to power the toy.

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A cellophane sheet that I have used to pack the underside of the board which has many protruding pins due to the through hole components on the top.

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Here I have finished soldering the battery pack. All I need now is a rubber band to hold everything in place.

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Oh, did I forget to mention the power button at the back side of the board. I have to keep this pressed when I wave the toy in the air.

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This is how the final thing looks like ! :-)

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