APA102 + RPi2

  • So i have connected my lights, i am not sure how it is supposed to look, but i know this is incorrect. But, i do not know where to start, and i don't want to un-solder every connection.


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    I currently have it wired up like this, http://awesomepi.com/wp-conten…erry_pi_howto_connect.png


    I am using 60 LED/m APA102 led's so, i have both V+ and Ground tied in at beginning, middle of strips and end.


    Thanks

  • Ok, so is there anywhere i could start for troubleshooting purposes, or about level shifting? I just don't want to have to order a part from China and have it take 4 weeks to find out it was an LED connection. is there a more basic way to hook up to the led's to ensure they are working and soldered together correctly.

  • https://plasmadan.com/uploads/…ry-pi-circuit-diagram.png that's likely the easiest way.
    Alternatively, you can use an arduino nano/uno with FastLED.


    This would flash the LED strip red on and off, with just an arduino nano, completely independant of the PI.. that would verify that the strip itself is working right.

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