PCA9685 16-Channel I2C PWM Servo Driver – 12-bit, 1.6kHz

The PCA9685 16-channel I2C PWM servo driver is a dedicated controller designed to expand PWM capabilities for microcontrollers. It features a built-in clock and operates independently, allowing precise PWM signal generation without continuous processor intervention. With 12-bit resolution and adjustable frequency up to 1.6 kHz, it ensures stable and accurate control for servos and LEDs. The module supports 3.3V and 5V logic compatibility, making it suitable for a wide range of embedded systems. Ideal for robotics, automation systems, LED control, and multi-servo applications.

• PCA9685 16-channel PWM controller chip
  
• I2C interface using only two control pins
  
• 12-bit PWM resolution (4096 steps)
  
• Adjustable PWM frequency up to 1.6 kHz
  
• Built-in internal clock for standalone operation
  
• Supports up to 62 modules on one I2C bus
  
• Controls up to 992 PWM outputs with chaining
  
• 5V compliant outputs with 3.3V logic compatibility
  
• Configurable push-pull or open-drain outputs
  
• Dedicated output enable pin for global shutdown
  
• High precision servo control (~4 µs resolution at 60 Hz)
  
• No continuous MCU signal required (free-running operation)
  
• Suitable for LEDs, servos, and motor control systems
  
• Stable and reliable PWM signal generation
  
• Compatible with Arduino, Raspberry Pi, and other platforms

• Chipset: PCA9685
  
• Control Interface: I2C (Up to 62 addressable devices)
  
• PWM Channels: 16 channels
  
• PWM Resolution: 12-bit (4096 steps)
  
• PWM Frequency Range: 24 Hz to 1.6 kHz
  
• Operating Voltage (Logic): 3.3V – 5V
• Output Voltage: Up to 5.5V
  
• Clock Source: Internal oscillator
  
• Output Mode: Push-pull or open-drain selectable
  
• Servo Pulse Resolution: ~4 µs @ 60 Hz
  
• Address Selection Pins: 6
  
• Maximum Expandable Channels: 992 outputs
  
• Output Enable Pin: Yes
  
• Board Dimensions: Approx. 62 mm × 25 mm

• PCA9685 16-Channel I2C PWM Servo Driver Datasheet
• PCA9685 16-Channel I2C PWM Servo Driver 3D Model
• PCA9685 Box
  

• Mastering Servo Control: PCA9685 PWM Driver with Arduino Tutorial and Demo