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Topic: LPD8806 RGB LED Strip - Reverse Engineer (with pics) questions/feedback (Read 31 times) previous topic - next topic

Cranium

So I screwed up the two 5M strips I bought.  Totally my fault.  I put my power supply in series mode to get more from it but didn't adjust the voltage prior to pushing the button.  I fried the strip and my arduino!

The second strip was after adjusting my voltage down to 5v but not realizing (nor was it well documented) that the display showed only 1/2 of the voltage in each so in actuality I was feeding 10v to the strip.  GRRRRRRRR.  Another strip fried but the arduino survived.  I didn't realize what was going on until I put a meter to the output of the power supply.

So now I have 10M of the LPD8806 strip that doesn't work.  Another project for myself is to fix these at some point.  I already have plenty of ICs and plenty of 5050 RGB LEDs but have to figure out how to isolate the bad chips and replace just those.  Fun, fun.

In the meantime, I ordered and received another 25M of these strips (5 - 5M spools).  I got these all tested out and they are working great.  I also hooked up two in series (both strips powered from both ends but data lines fed from one to the other) and the arduino controlled all 320 lights with no problem in any of my lighting routines.

I also bought a 20A, 5V power supply from eBay that is powering both strips very well. :)

Anyhow, I was thinking of selling some of the latest order if anyone is interested.  It would be the exact same as what is bought off Adafruit but cost much less.  Not sure if I'll just throw them on eBay by the spool or by the meter yet.


dezie

can you sent for me about code program in arduino for drive two LED bar adversely with ULN 2803

diegocava

Hello everybody!!
I bought a LED stripes a month ago from this website www.lampadadiretta.it but I don't know how to use it.
On this website the product is not anymore in the assortment and there are no information about this particular LED. It's a very good italian website for Philips lamps, full of informations but not on this product!
Please help me!

citlee


Hello everybody!!
I bought a LED stripes a month ago from this website www.lampadadiretta.it but I don't know how to use it.
On this website the product is not anymore in the assortment and there are no information about this particular LED. It's a very good italian website for Philips lamps, full of informations but not on this product!
Please help me!


Unless you know you have a strip that uses the LPD8806 chips, this probably isn't the place to post - apart from anything else, not many will be reading this thread. You're likely better off creating your own.

Also you're going to have to provide a lot more information - at the very least some detailed close-up photos of all the components of your strip and the connectors, if you don't have a datasheet, and then someone may be able to help.

aaron_sky

I thought I'd better chime in on this as I recently read the post by "cranium" and took the chance myself based on that post. I ordered 15 meters of the same 5V RGB LED strip that you can find on Adafruit.com and got them for something like $13 per meter. I was a little concerned about the process since I'd never ordered from China before or used Western Union but it all went smoothly. Just tested them a minute ago and they work perfectly. This is not an add. Just wanted to say thanks and give others a little confidence in buying from the same place. Yay! Thanks.
Here's where they have them listed: http://gree-leds.com/productshow.asp?ArticleID=TS7X2X7VTP

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