PCA9685 16-Channel 12-Bit PWM Servo Driver Module

The PCA9685 is a 16-channel I2C PWM driver designed to control multiple servo motors with precise 12-bit resolution. It communicates over I2C, allowing you to daisy-chain up to 62 modules on a single bus using selectable address jumpers. Ideal for building multi-servo robotics arms, animatronics, or LED dimming, this module offloads PWM generation from your microcontroller.

Key Specifications

What You Can Build With This

• 6-axis robotic arm with independent servo control
• Pan-tilt camera gimbal for surveillance systems
• Animatronic puppet with synchronized motions
• Custom LED mood lighting with 16 individually dimmable channels

Compatibility

This PWM driver works with any 3.3V or 5V microcontroller that supports I2C, including Arduino Uno, Mega, Nano, Raspberry Pi, ESP32, and STM32. Its logic pins are 5V tolerant, so you can safely interface with 3.3V boards without level shifting. It pairs perfectly with standard analog servos like SG90, MG995, and MG996R.

Wiring Notes

Connect the module’s SDA and SCL pins to your microcontroller’s I2C lines. Provide a separate 5V–6V power supply to the terminal block for servo power, ensuring the ground is shared with the microcontroller. Do not power servos directly from the Arduino’s 5V pin to avoid overcurrent damage.

Why Buy from Compoden

Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.