16 Channel PWM Servo Control Board

This 16 Channel PWM Servo Control Board is a versatile module that allows you to control up to 16 servos using only 2 pins via I2C communication. Whether you’re building a robot, animatronic project, or any application that requires precise servo control, the PCA9685 16-Channel Servo Driver is an excellent choice. It simplifies servo management and frees up valuable pins on your microcontroller. 

Features

• The PCA9685 offers 16 fully programmable PWM outputs with a 12-bit resolution, providing 4096 steps for precise duty cycle adjustments on each channel.
• The module uses the I2C bus for communication, ensuring easy integration with microcontrollers like Arduino or Raspberry Pi.
• Supports frequency control across all 16 channels, programmable between 24Hz and 1526Hz.
• The duty cycle (pulse width) can be fine-tuned from 0% to 100% for accurate output control.
• The on-board PWM controller manages all 16 channels independently, reducing processing load on the microcontroller compared to direct pin-based servo control.
• Multiple modules can be daisy-chained together. With up to 62 boards on a single I2C bus, you can control up to 992 servos using just two pins.

• Altronics Code: Z6493
• I/N: 18385
• Barcode: 9321758258453
• Packaging Sizes
• EACH: 1
• Large Image 1
• Large Image 2
• Large Image 3

• General:
• Dimensions: Without headers or terminal block: 2.5 x 25.4 x 3mm
• Weight Without headers or terminal block: 5.5g
• Weight With 3x4 headers and terminal block: 9g
• Built-in Clock: Free-running PWM driver, eliminating the need for continuous microcontroller signals
• Output Control: Output enable pin for quickly disabling all outputs
• LED: Green power-good LED for easy diagnostics
• Space: Ideal for adding a large capacitor on the V+ line to stabilize power input
• Power Input:
• Terminal block with reverse polarity protection
• Optional 0.1" breakout pins for flexible power connection
• I2C Interface:
• 7-bit address range: 0x60–0x80, selectable with solder jumpers
• Connects to microcontrollers (e.g., Arduino) with 4 lines; 5V -> VCC, GND -> GND, SDA (data) and SCL (clock)
• PWM Outputs:
• 16 channels with 3-pin connectors grouped in sets of 4
• Each output includes 220-ohm series resistors for protection and easy LED control
• Configurable as push-pull or open-drain output
• PWM Resolution and Frequency:
• 12-bit resolution per channel (4096 steps)
• Adjustable PWM frequency up to 1.6 KHz
• ~4µs resolution at a 60Hz update rate (ideal for servos)
• Addressable and Chainable:
• Features 6 address select pins
• Supports daisy-chaining of up to 62 boards on a single I2C bus
• Total of 992 outputs can be controlled (ideal for large servo or LED projects)
• Voltage Compatibility:
• 5V compliant: Safe to use with 3.3V microcontrollers while driving outputs up to 6V
• Supports LEDs with higher forward voltages (e.g., white or blue LEDs at 3.4V+)

*Specifications are subject to change without notice.