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PCA9685 16-Channel 12-Bit PWM Servo Driver Shield
The PCA9685 16-Channel 12-Bit PWM Servo Driver Shield is a high-performance I2C-controlled interface board designed for precision multi-servo robotics and dimmable LED driver configurations. Operating on a simple 2-pin I2C connection, this shield drives up to 16 free-running PWM outputs with a highly accurate internal clock, completely offloading continuous processing tasks from your microcontroller. It features an onboard terminal block for external power supply input to handle high-surge servo motor loads safely, along with 220-ohm series protection resistors on all output lines. It is an industry-standard breakout board for building robotic arms, hexapods, and RC mechanical actuators.
₹ 420
₹ 799
| : | |
| Made In : | India |
This module enables smooth and scalable control of up to 16 servos or PWM outputs using I2C communication.
Key Features
- 16 independent PWM channels
- 12-bit resolution (4096 steps) for smooth control
- I2C interface (uses only 2 Arduino pins)
- Supports up to 16 servos simultaneously
- Adjustable frequency (typically 40–1000 Hz)
- Stackable design for more channels
- External power support for high-current servos
- Compatible with Arduino, ESP32, Raspberry Pi
Technical Specifications
| Parameter | Specification |
|---|---|
| Driver IC | PCA9685 |
| Channels | 16 PWM outputs |
| Resolution | 12-bit (4096 steps) |
| Communication | I2C (SDA, SCL) |
| Operating Voltage | 3.3V – 5V logic |
| Servo Power Input | 5V – 6V external recommended |
| PWM Frequency | Adjustable (typical 50Hz for servos) |
| Output Type | PWM signal |
| Expandability | Stackable modules |
How to Use
- Connect VCC and GND to microcontroller
- Connect SDA and SCL pins (I2C interface)
- Provide external 5V power for servos
- Install PCA9685 library in Arduino IDE
- Upload servo control code
- Control multiple servos independently
Applications
- Robotic arms and manipulators
- Humanoid robots
- RC servo control systems
- Drone gimbal stabilization
- Automation machinery
- Pan-tilt camera systems
- Multi-axis motion projects
Package Includes
1 * 16-Channel 12-bit PWM Servo Driver Shield – PCA9685 I2C Module
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