Strobe Project With CD Player

About: I would love to find a job where I could play with fabrication tools all day and be creative. Anyone have a suggestion?

If you get the strobe frequency right, you can match it with a spinning CD. But Remember, the CD rpm slows down as it gets farther into the tracks.

Note: the lable on the CD is just "I LOVE YOU" broken into 4 pieces and evenly distributed into 4 quadrants.

This video doesn't do it justice since the frame rate isn't fast enought to keep up with the strobe. It looks much better in person.

I built the strobe using a 555 timer and a pot for freq adjustment.

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Be the First to Share

    Recommendations

    • Made with Math Contest

      Made with Math Contest
    • Multi-Discipline Contest

      Multi-Discipline Contest
    • Robotics Contest

      Robotics Contest

    5 Discussions

    None
    prabbit22m

    10 years ago on Introduction

    Thanks ... darn wireless keyboard misses a stroke every once in a while. I think I need to move the receiver closer. The strobe was just a 555 time you can get at radio shack. it's a very commont timer circuit. You can find schematics on building an LED flasher using this chip online. You can also find graphs and charts that tell you what resistors will produce what frequency. Once you know about what frequency you want you can get a pot or a pot with a resistor that is close and adjust the pot to match the freq exactly. If you can't find anything online let me know and I'll find some and send you the links.

    2 replies
    None
    lemonieprabbit22m

    Reply 10 years ago on Introduction

    I might do that. On the CD speed, could you burn a CD with one shot track and get it to auto-repeat? (I don't know) L

    None
    lemonielemonie

    Reply 10 years ago on Introduction

    Removed by myself. Still I guess I'm part of the community...
    (Typo corrected)

    L