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Author Topic: Led drivers mbi 5026 mbi 5030  (Read 1287 times)
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Hi
Can you help me with this
I have a 16 rgb leds - its a 16*3=48 channels
I have 3 drivers MBI5026 (or and) MBI 5030 (16 channels ) = 48 channels
connecting all to arduino
And I have a problem with brightness of leds (i can only turn ON or OFF each channel)
! How can i make a brightness for each channel or for each color?
I planning make a big panel with 1000 RGB Leds.
I'm new in that topic/ i read about REXT, but cant understanding - how it connecting or how it programming
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Cross posting make us cross.  smiley-twist
Don't do it.
You have bought the wrong sort of controller, you can't use this to change the brightness especially if you want to expand it to a lot of LEDs.
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but what about R-EXT?
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That is a resistor that sets the current for the constant current outputs:-
1) You can't control that directly with an arduino, you would need a digital pot.
2) Even when you do control it then it would change the brightness of all 16 LEDs at the same time.
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