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LPD8806 - Praise - UPDATE: UFO video added.
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LPD8806 - Praise - UPDATE: UFO video added.

by troynh on Tue Nov 22, 2011 11:05 pm

Hi,

Just wanted to say thanks for the LPD8806 tutorial and sketch! I'm in the middle of building a UFO Multiwii Quad-Copter and these are going to look awesome while flying at night. I'm powering the strips with a 2s 800mah Lipo going into a 5 volt UBEC and out to a 5 volt Arduino Pro Mini. (Pin 3 for Data & Pin 5 for Clock.)

Here's a quick clip. http://vimeo.com/32540993

Thanks,

-Tim
Last edited by troynh on Thu Dec 01, 2011 9:26 pm, edited 1 time in total.

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Re: LPD8806 - Praise

by adafruit on Wed Nov 23, 2011 1:57 pm

cool, post up when its flying too!

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Re: LPD8806 - Praise

by troynh on Wed Nov 23, 2011 5:31 pm

Will do. :) Just waiting on more strips that I see left today. So, I'll probably get them Monday due to the holiday and be flying by Tuesday or Wednesday evening.

-Tim

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Re: LPD8806 - Praise

by cranium on Mon Nov 28, 2011 1:04 am

Any updates on this? I want to see the quad copter with them on it!

What kind of run time do you get on that battery with the sketch you have? Any undervoltage protection in the circuit to prevent draining the LiPo too much?

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Re: LPD8806 - Praise

by troynh on Mon Nov 28, 2011 4:28 pm

I'm still waiting for UPS. They're playing catch up from the holiday... Apparently it'll get here tomorrow.

I'm using this UBEC feeding the arduino: http://www.hobbyking.com/hobbyking/stor ... Input.html
And you can use this voltage alarm: 3s Lipo - http://www.hobbyking.com/hobbyking/stor ... or_3S.html
or 2s lipo - http://www.hobbyking.com/hobbyking/stor ... or_2S.html

I'm easily getting over an hour on my little 2s battery. Plenty of power for what I'm using it for. :wink:

Here's a clip of the Quad that they'll be going on flying around my back yard.

http://vimeo.com/32715181

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Re: LPD8806 - Praise

by cranium on Mon Nov 28, 2011 6:22 pm

Nice! What kind of quadracopter is that? What were you using for recording video? It is extremely clear and stable.

That should look great with a string of leds around it.

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Re: LPD8806 - Praise

by adafruit on Mon Nov 28, 2011 6:24 pm

oh yeahhhhh! please post a cool video of it from your POV - we'll blog about it again, this looks great!!!

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Re: LPD8806 - Praise

by troynh on Mon Nov 28, 2011 6:49 pm

Cranium,

It's a Multiwii based quad of my own design. The schematics and software can be found here: www.multiwii.com
The camera is a GoPro Hero HD.

Will do Adafruit! Should look really cool in the dark. Maybe I'll make the paper for local UFO sightings. Lol...
Here's a mixed ground clip of a dedicated aerial photography/video quad. Not too pretty to look at but gets the job done.
http://vimeo.com/23423149

-Tim

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Re: LPD8806 - Praise

by cranium on Tue Nov 29, 2011 3:50 am

Thanks for the info! Lovin it! I have a few RC helis and have wanted to build a tri, quad, or hex copter. I've looked at the AeroQuad before but haven't taken the plunge because of the cost. I need to just do it! :D

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Re: LPD8806 - Praise

by troynh on Wed Nov 30, 2011 2:38 pm

I discovered last night that I can't feed the Arduino through the 5V UBEC alone and then feed the LPD8806's via the VCC of the Arduino with more that 48 LED's. The Arduino freezes once it hits the Wave effect.

So, I made a + - whip and fed the 5v's directly from the UBEC to the LPD8806 and then fed the arduino from the UBEC to it's input power and then connected the DI & CI. Now there's no freezing with a rather aggressive color combo on that wave effect running 64 leds.

I'll be installing these tonight on the quad frame.

-Tim

Image

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Re: LPD8806 - Praise

by troynh on Wed Nov 30, 2011 9:41 pm

Okay, here is a quick inside clip of the quad. 72 led's being run off a 3s 800mah Lipo.

-Tim

http://vimeo.com/32942322

Image
Image

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Re: LPD8806 - Praise

by cranium on Wed Nov 30, 2011 9:54 pm

That is very cool looking. Look forward to seeing it flying in the dark. :)

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Re: LPD8806 - Praise

by adafruit on Thu Dec 01, 2011 12:32 am

awesome!

keep posting videos and photos!

we are almost ready to award cool badges for projects like this, here's the two you would (will) get :)

pt_225.jpg
pt_225.jpg (21.27 KiB) Viewed 2579 times

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Re: LPD8806 - Praise

by troynh on Thu Dec 01, 2011 10:25 am

Lol... Cool! I'll hopefully get a night video tonight. (If not definitely over the weekend.)

-Tim

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Re: LPD8806 - Praise - UPDATE: UFO video added.

by troynh on Thu Dec 01, 2011 9:28 pm

Okay, here is the maiden UFO Quad video. It transitions from dusk to dark at around the 38 second mark.

-Tim

http://vimeo.com/33002204

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Please be positive and constructive with your questions and comments.