2811 strip and arduino

[amrutherford2012]

okay so im having a dumb moment, ive been running ws2811 12mm nodes but just got 17ft of 2811 flex strip. they are 12v and i believe BRG. so here my dumb moment. i cant get them to do anything beside turn on and they turn white. i have 12v and GND both on a power supply and data to the assigned PIN on my mega. NOTHING!. am i doing something wrong cause clearly i am...please slap me with what is wrong

[kev]

do you have the grounds tied together?

[amrutherford2012]

yes. tried to tie the two 12v leads and 2 grounds to power supply and nothing. just data connected to arduino

[crees]

Make sure the arduino ground is also connected to the pixels ground / power supply ground


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[amrutherford2012]

Make sure the arduino ground is also connected to the pixels ground / power supply ground


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i believe i tried that as well. ill try now again to make sure

[amrutherford2012]

yes so 12v to 12v, gnd to gnd adn ardruino, data to data...still white

[kev]

what are you powering the arduino with?

[crees]

yes so 12v to 12v, gnd to gnd adn ardruino, data to data...still white

What library are you using for the pixels? If you connect another kind strip/ lights it works? Please take picture or 12v pixels and the back side as well


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[amrutherford2012]

what are you powering the arduino with?

same power supply. i have 12v outs, 5v outs and 3.3v outs. 12 to lights and 5 to board

[amrutherford2012]

What library are you using for the pixels? If you connect another kind strip/ lights it works? Please take picture or 12v pixels and the back side as well


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tried to use a neopixel and fast led code along with a vixen sketch for xmas show. if i plug my 5v 12mm nodes in same pin its all fine