16 CHANNEL 12-BIT PWM/SERVO DRIVER

The PCA9685 is a highly versatile and efficient 16-channel 12-bit PWM controller, ideal for driving servos and LEDs. It uses the I²C protocol for communication, allowing for easy control of multiple devices with precise timing. Its high-resolution PWM outputs make it suitable for robotics, lighting, and other projects requiring precision control.

Key Features of PCA9685 16-Channel 12-Bit Servo Motor Driver:

• • 16 Independent Channels: Controls up to 16 servo motors or LEDs independently.
  • 12-Bit Resolution: Provides 4096 steps of PWM resolution for smooth and precise control.
  • I²C Communication: Easily interfaces with microcontrollers using I²C (up to 62 devices on a single bus).
  • Built-in Oscillator: No external clock required for operation.
  • Adjustable Frequency: PWM frequency ranges from 40Hz to 1000Hz.
  • Wide Voltage Range: Operates from 2.3V to 5.5V for logic level and up to 6V for servo power.

Technical Specifications of PCA9685 16-Channel 12-Bit Servo Motor Driver:

• • Operating Voltage: 2.3V to 5.5V (logic), 3V to 6V (servo power)
  • PWM Frequency: 40Hz to 1000Hz
  • PWM Resolution: 12-bit (4096 steps)
  • I²C Address: Configurable with 6-bit address pins (0x40 default)
  • Output Current: 25mA per channel
  • Dimensions: Approximately 60mm x 25mm

Schematic Diagram, Connection, Wiring, and Pinout of PCA9685 16-Channel 12-Bit Servo Motor Driver:

• Schematic Diagram: The PCA9685 connects to a microcontroller via I²C (SDA and SCL). It powers the servos via the V+ and GND pins and provides PWM signals to servo signal lines.
• Connection:
  • VCC: Connect to the microcontroller’s 3.3V or 5V logic power.
  • GND: Connect to the common ground of the system.
  • SDA: Connect to the I²C data line of the microcontroller.
  • SCL: Connect to the I²C clock line of the microcontroller.
  • V+: Connect to the servo motor power supply (3V to 6V).
  • PWM Pins: Connect servo or LED signal wires to these pins.
• Pinout:
  • Pin 1: VCC (Logic power supply)
  • Pin 2: GND (Common ground)
  • Pin 3: SDA (I²C Data Line)
  • Pin 4: SCL (I²C Clock Line)
  • Pin 5-20: PWM outputs for 16 channels
  • Pin 21: V+ (Servo motor power supply)

Applications of PCA9685 16-Channel 12-Bit Servo Motor Driver:

• • Robotics: Control multiple servo motors in robotic arms, humanoids, and drones.
  • Lighting Systems: Generate PWM signals for dimming LEDs in decorative lighting.
  • RC Vehicles: Drive servo motors for steering and throttle control.
  • IoT Projects: Suitable for IoT systems requiring multiple actuators or lights.

Equivalent Models of PCA9685 16-Channel 12-Bit Servo Motor Driver:

• • Adafruit 16-Channel PWM Driver: A similar module with PCA9685 at its core.
  • TLC5940: A PWM LED driver that can also be used for servo control.

DataSheet:

• • Download Datasheet

Keywords for PCA9685 16-Channel 12-Bit Servo Motor Driver:

• • PCA9685
  • 16-Channel PWM Driver
  • Servo Motor Driver
  • I²C Servo Controller
  • LED Driver

Package Includes:

• • 1 x PCA9685 16-Channel 12-Bit Servo Motor Driver Module