PCA9952/55 16-channel LED driver
The PCA9952/55 is a 16-channel constant current LED driver with a Fm+ I2C interface, and independent current control for each channel.
Hello World
Import programPCA9955_HelloWorld
A simple serial test program for the PCA9952/55 library.
Last commit 30 May 2014 by 
Neil Thiessen
Library
Import libraryPCA9955
A feature complete driver for the PCA9952/55 LED driver from NXP.
Last commit 30 May 2014 by Neil Thiessen
Pinout
Datasheet
http://www.nxp.com/documents/data_sheet/PCA9952_PCA9955.pdfNotes
The PCA9955 features 4 address pins, while the PCA9952 features 3 address pins and an active-low output enable pin (OE). If the output enable pin is not needed, it can be tied to GND and both parts can be used interchangeably. In addition to per-channel 8-bit PWM, the PCA9952/55 also features a per-channel 8-bit current adjustment from 225µA to a maximum of 57mA.
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