How to use the IS31FL3731 PWM LED I2C Driver

[altbert]

Hi all, I am trying to use the IS31FL3731 PWM LED I2C Driver as a light, to project through silhouettes. I am quite inexperienced, and I am not quite sure how to turn all the LEDs on at once. I am using an Arduino Uno. I would appreciate any help. Thanks

[Grumpy_Mike]

Hi @altbert welcome to the forum.

@altbert

I am not quite sure how to turn all the LEDs on at once. I am using an Arduino Uno.

You might want to look at this How to get the best out of this forum before you proceed any further.
We only know what you tell us, and without knowing what you have, we don't stand a chance.

So the first thing we need to know is the schematic of how you have wired this up.

The first thing you should know is that the Arduino Uno alone can't directly light up all the LEDs at the same time, you will probably need an external source of power for the LEDs.

But we will know this once you post your schematic and code.