Description

This PCA9685 16-channel PWM/servo driver board offers powerful, flexible, and scalable control for LEDs, servos, and other PWM devices. With built-in I²C communication, an integrated PWM driver, and its own clock, it eliminates the need for constant microcontroller signal updates.

Key Features:
I²C with Integrated PWM Driver & Clock – No need for continuous MCU control, unlike TLC5940.
5V Compatible, 6V Safe Output – Works with 3.3V microcontrollers while driving up to 6V loads, perfect for white/blue LEDs or servos.
Scalable Expansion – Six address pins allow up to 62 boards on one I²C bus (total 992 outputs).
Adjustable PWM Frequency – ~1.6 kHz adjustable output for smooth, precise control.
12-bit Resolution – 4 µs precision at 60 Hz refresh, supports push-pull or open-drain modes.

Specifications:
Chip: PCA9685
16× 3-pin connectors for servos or PWM devices
Reverse polarity protection on input terminals
Large 10V 1000µF capacitor for stable power supply
220 Ω resistors on PWM outputs for LED protection
Cascade design for multi-board setups
Green power indicator LED
This board is ideal for robotics, LED control, model making, and large-scale automation projects.