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Chuck Stephens
Worked at being a better human.
Attended many fine functions.
Lives in a cool cardboard fort!
5 followers|2,962 views
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Here's a sneak peek at the laser spirograph synthesizer. Tune in to the hang out for all the deets!
https://vimeo.com/90908468
4
Chuck Stephens's profile photoXiao Shi Zi's profile photoFahd Alshammari's profile photoKevin Gagnon's profile photo
6 comments
 
I could look at that for hours.  Very cool, Chuck.
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Help! I'm usually the tool and design guy on the team but I'm stuck doing the code this time around and I'm an Arduino noob. I'm controlling the speed of a 12vDC fan with a 10k pot. I've added this line to my code-
sensorValue0 = map(sensorValue0, 0, 1023, 0, 255);
to map the pot values to the motor speed variable range but I'm still getting a strange spiked distribution rather than a smooth 0 to full speed transition. The speed goes from low to high several times as I sweep the pot. Any suggestions on how to fix this?
1
Chuck Stephens's profile photoBrian Bartlett's profile photoRobert Getzner's profile photo
6 comments
 
Since it went through multiple times (perhaps four?),the 1023 & 255 may have required a swap. map() mapping one range of values onto another range. In any case, dividing by four was your actual intent, so you're set. 
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Chuck Stephens

Discussion  - 
 
I kludged together a quick and dirty prototype of my laser spirograph. Here's a video-
  https://vimeo.com/90383987
I set it up with rheostats for manual analog control. It works somewhat, but I've decided to build a new model with 4 DC Computer fans because they have a much better surface area to mount the mirrors. I'm also using 1.5" cosmetics mirrors. I'm also hoping to find a green laser in time for the big reveal. Fingers crossed!
5
Kevin Gagnon's profile photo
2 comments
 
w-o-w. Very, very cool, Chuck.
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Are we the only ones still tweaking our project at the last minute?
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Maker Block's profile photoJon Adair's profile photoTyler Swain's profile photo
3 comments
 
Almost set ours on fire 10 minutes ago.
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Have him in circles
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So has anyone been able to get the motor shield working with the Galileo? I seem to be having a problem with the Wire library.
1
Kevin Gagnon's profile photo
 
I've started from scratch a few times. Still, no joy. Using the Arduino that came with the kit instead. Will try again when the libraries have matured. Let me know if you figure it out please!
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Chuck Stephens

Discussion  - 
 
OK so I assembled my motor shield and tested it with the arduino and it's working fine. I installed the Galileo IDE and updated the driver just fine. When I went to update the firm ware I got 'Target Firmware version query failed' and it doesn't do anything. Any ideas?
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Chuck Stephens's profile photoKevin Gagnon's profile photo
3 comments
 
I hear you.  I need to log audio data.  I went to Radio Shack and got a SD card shield for the Arduino yesterday.  I guess I'll work specifically with the Arduino and hope to port it to the Galileo later.  It seems I'm not ready to make the jump just yet.  Good luck with your project.  It looks very cool.
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Chuck Stephens

Discussion  - 
 
Super stoked to be here, guys! We had so much fun with the Robot Hacks we can't wait to get our hands dirty with this one. I've been working on a multi-axis laser 'spirograph' style projector with PWM motor controls. I want to use the Galileo to get better control of my motor speeds to achieve specific ratios for better control of the projected pattern. The ability to save settings would be nice also. This coincides nicely with our upcoming maker festival, the Gulf Coast MakerCon, on April 5&6, so we'll be able to debut our project for the public there as well as online. Thanks for bringing us along for the fun!

Chuck Stephens
Gulf Coast MakerCon
Hillsborough County Community Innovation Center Makerspace Advisor
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Matt Richardson's profile photo
 
Thanks for joining us, Chuck! Looking forward to seeing the laser spirograph.
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Have him in circles
5 people
Education
  • many fine functions.
    I'm mostly self educated with a slight bit of public school contamination.
Basic Information
Gender
Male
Work
Occupation
art, design, multidisciplinary solutions
Skills
seeing things and making things
Employment
  • being a better human.
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Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
a cool cardboard fort!
Previously
I live in Seminole Heights, Tampa, Florida
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