PCM9685

lib9685 is a library for talking to the PCA9685 I²C PWM driver by NXP

PCA9685 Highlights from datasheet

• 16 individually controlled channels
• 12bit (4096 steps) registers both for on and off time
• 1MHz fast I²C bus interface with 30mA high drive capability on SDA output for driving high capacitive buses
• 40MHz to 1000MHz PWM frequency for all LEDs with internal 25MHz oscillator
• Operating power supply voltage range of 2.3 V to 5.5 V
• Six hardware address pins allow up to 62 devices on the same bus