PDL8806 LED strip wiring

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mistblind
 
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PDL8806 LED strip wiring

Post by mistblind »

Hi guys,

I'm beginning a project where i need to controll a PDL8806 compatible 12V LED strip through an Arduino. I was looking at the tutorial here http://learn.adafruit.com/rgb-led-strips/overview however it uses an analog strip. Do i still need a transistor for digital led strips if using an external 12V power supply?

Thanks in advance
Last edited by mistblind on Fri Apr 12, 2013 7:48 am, edited 1 time in total.

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adafruit_support_bill
 
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Re: PDL8806 LED strip wiring

Post by adafruit_support_bill »

Do i still need a transistor for digital led strips if using an external 12V power supply?
Which strip were you planning to use? All of our digital strips run on 5v.

mistblind
 
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Re: PDL8806 LED strip wiring

Post by mistblind »

adafruit_support wrote:
Do i still need a transistor for digital led strips if using an external 12V power supply?
Which strip were you planning to use? All of our digital strips run on 5v.
Hi, thanks for the reply.
I don't really know to be honest. A friend of mine is ar re-seller of SPI LPD8806 based digital strips that uses 12V that i'm planning to use.

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pburgess
 
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Re: PDL8806 LED strip wiring

Post by pburgess »

No transistors are needed for 12V digital pixels. A 12V supply connects directly to +V and GND, but the clock and data inputs are 5V, directly compatible with Arduino and such. Our giant 36mm square pixels are 12V powered.

mistblind
 
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Re: PDL8806 LED strip wiring

Post by mistblind »

Great, thanks for the reply.

Now i know that i wont be needing the transistors. But how about power? I know that i need a 12V external power supply that will power both the leds and the Arduino itself. The strips draw 0,48A/meter and since i will be using 5 strips that sums up to 2,4A and 28,8W. The specs for the power supply i'm thinking of bying is:

output 5.0-6.0-7.5-9.0-12.0 V = max. 3A

Is 3A too much?

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adafruit_support_bill
 
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Re: PDL8806 LED strip wiring

Post by adafruit_support_bill »

Is 3A too much?
No. The strips will only draw what they need from it.

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