Reference: RBD-2067
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The PCA9685 16-Channel 12-bit PWM/Servo Driver is a powerful I2C-based PWM controller designed for applications that require multiple precise output signals. Built around the PCA9685 chip, this module provides 16 independent PWM channels, each with 12-bit resolution, offering 4096 levels of control for smooth servo positioning or LED dimming. Because it features an onboard 25MHz oscillator, it eliminates the need for continuous signal refreshing from the microcontroller, reducing processing load.
This module supports Fast-mode Plus I2C communication up to 1MHz, ensuring fast and stable data transfer even in complex systems. It operates from 2.3V to 5.5V and includes 5V-tolerant inputs, making it fully compatible with 3.3V and 5V microcontrollers. Therefore, integration with Arduino, ESP32, STM32, or Raspberry Pi becomes straightforward.
With adjustable PWM frequency from 24Hz to 1526Hz, it is ideal for servo motors, RGB LEDs, LCD backlights, and signal generation tasks. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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16 Independent PWM Channels – Control multiple servos or LEDs simultaneously.
12-bit Resolution (4096 Steps) – Ensures smooth motion and brightness control.
Wide PWM Frequency Range (24Hz–1526Hz) – Suitable for servos and LED applications.
High-Speed I2C Communication (Up to 1MHz) – Reliable and efficient data transfer.
Built-in 25MHz Oscillator – Stable timing without external clock.
Expandable via Address Pins – Supports up to 62 modules on one I2C bus.
5V-Tolerant Inputs – Safe for both 3.3V and 5V systems.
Low Power Consumption – Efficient for battery-operated systems.
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Servo Motor Control – Robotics, CNC, animatronics, and automation systems.
RGB/RGBA LED Control – LED matrix displays and backlighting projects.
Home Automation Lighting – Multi-channel dimming and lighting control.
Industrial Display Systems – LCD and LED backlight driving.
Signal Generation Projects – Adjustable PWM output for experiments.
IoT & Embedded Systems – Multi-channel PWM expansion for microcontrollers.
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| General Specifications | |
| Driver Chip | PCA9685 |
| PWM Channels | 16 |
| PWM Resolution | 12-bit (4096 steps) |
| PWM Frequency Range | 24Hz – 1526Hz |
| Operating Voltage | 2.3V – 5.5V |
| Output Current | 25mA Sink / 10mA Source per Channel |
| Communication Interface | I2C (Up to 1MHz Fast-Mode Plus) |
| Internal Oscillator | 25MHz |
| Operating Temperature | -40°C to +85°C |
| Module Size | 65mm × 30mm |
| Address Expansion | Up to 62 Modules |
| Shipment Weight | 0.010 kg |
| Shipment Dimensions | 7 × 3 × 3 cm |
Please allow 5% measuring deviation due to manual measurement.
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1 x PCA9685 16-Channel 12-bit PWM/Servo Driver
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