Selfmade Lasershow (three axis laser spirograph)

This is a lasershow which i built myself inspired by this tutorial:
http://www.instructables.com/id/Laser-show-for-poor-man/

The difference i've made is using an atmel microcontroller instead of the PIC, because i am not used to the PIC's, so i wrote my own program for an atmega8.
The Lasershow is based on an atmega8 which reads (in manual mode) the values of three potentiometers using ADC to control the speed three 5Volts 40mm fans using PWM. I installed dental mirrors on the fans to reflect the laser beam.
I also programmed an automatic mode. There the atmega itself generates the PWM values for the fans randomly instead of using the potentiometer ADC values.

Watch the video for more information!

Here the source code for them that want:
http://uploaded.to/file/5dixcn

Category:

Science & Technology

Tags:

• Laser
• Lasershow
• green laser
• atmega
• atmel
• atmega8
• spirograph

[LeopardJeff]

I saw the other instructable and was inspired as well. Yours came out great. I made a combination spiro/ hard drive galvo system so it would work with music or frequency generator. I recently purchased the Atmel AVR Butterfly and am learning C. I would love to see your program files from this project.

[AnalCobra01]

Hey,

thanks for your interests. Im also more a beginner and hobby programmer and for programming avr with avr-gcc there are not many sources on the net. My program code is not the best but i can post a link where you can download all the stuff soon ...

[tanman954]

By the way, I am LeopardJeff. This is my home user name while the other is from work.

[AnalCobra01]

hey,

i added a link to the sources in the description.

have fun and keep up programming!

[LeopardJeff]

Thanks for the link. I just started programming in C so this will keep me busy for awhile. I'll send you a video of my project soon.

[AnalCobra01]

Ok, cool.

I started with Java on my own. Then i learned the basics from C which are much equal to Java. Later i discovered the possibilities to program a microcontroller. Because i have the most done in Java (and a bit C/C++) and because i use linux i chose the avr-gcc to program the µc. I like µc's very much because you can do many things with them ...

So, have fun learning!

[Tautius]

Hey, it's so cool. P.S. do you have / could sent me circuit of this incredible spirograph? Thanks in advance.

[tanman954]

Hi Cobra,

I look forward to looking at your code. I just started programming and am just lighting LEDs right now. I want to learn more about PWM and think that your code could help. I use AVR Studio and the gcc simulator. I will post a video of the crude gyro/galvo system that I made as soon as I can get it uploaded.

[AnalCobra01]

cool. i hope you get yours working again to see your video!