The PCA9685PW 16-Channel PWM Servo Driver is a precision I2C interface module that provides independent control of up to 16 servos or LEDs from a single microcontroller. It delivers 12-bit resolution for smooth, granular movement and operates on a 2.5V to 5.5V logic range, making it compatible with Raspberry Pi, Arduino, and other 3.3V/5V boards. Features and Benefits
- 16 Independent 12-bit PWM Channels - Control up to 16 servos, motors, or LEDs simultaneously with 4096 precise steps for exceptionally smooth operation.
- I2C Interface Control - Requires only two I/O pins (SDA, SCL) to command all channels, freeing up critical GPIO on your main board for other sensors and inputs.
- Adjustable PWM Frequency - Configure the base frequency from 24Hz to 1526Hz to perfectly match the requirements of standard servos (50Hz), LEDs, or DC motor speed controllers.
- Built-in 25MHz Internal Oscillator & 5V Logic Level Shifter - Ensures stable, accurate timing and provides safe communication between 3.3V and 5V devices without external components.
- External Power Input for Servos - Features a separate terminal block to supply high current directly to your servos, protecting your main board from power-related damage. Applications
- Advanced Robotics Projects - Coordinate complex multi-servo movements for robotic arms, hexapods, or animatronics with a single, streamlined control board.
- Home Automation and Lighting Control - Manage banks of LED strips or dimmable lights for custom ambiance and automated lighting scenes.
- RC and Model Making - Drive multiple servos in custom RC vehicles, flight simulators, or scale models with professional-grade precision.
- Prototyping and Education - An essential tool for engineering students and makers to learn about I2C communication and multi-device control systems.
Dimensions: 60 x 40 mm (approximate). Operating Voltage: 2.3V to 5.5V. Servo Supply Voltage: 5V (typical). PWM Resolution: 12-bit. Compatibility: Raspberry Pi. Channels: 16. Form Factor: Shield/Module. I2C Address Range: 0x40 to 0x7F (software configurable). IC: PCA9685PW. Interface: I2C. Part Quantity: 1-10 pcs. Pin Pitch: 2.54 mm. PWM Frequency: 40 Hz to 1000 Hz. Signal Type: PWM. Board Dimensions: Approximately 60 mm x 40 mm (standard shield form factor). Onboard Power Connector: 2-pin screw terminal for V+ and GND. Operating Voltage (Logic): 3.3V or 5V (selectable via jumper). Output Driver Voltage: 5V to 10V (V+ input, separate from logic). I2C Address Range: 0x40 to 0x7F (62 unique addresses via jumpers). Maximum Continuous Output Current per Channel: 25 mA. Maximum Total Continuous Output Current (All Channels): 200 mA. PWM Frequency Range: 24 Hz to 1526 Hz (typical). Interface: I2C. Compatibility: Raspberry Pi (via GPIO header), Arduino, and other microcontrollers with I2C. Core IC: PCA9685. External Clock Input: Pin for optional external clock (up to 50 MHz). Mounting Holes: 4x M2.5 mounting holes. Onboard Oscillator: 25 MHz internal oscillator. Product Name: PCA9685PW 16-Channel 12-Bit PWM Servo Shield Driver Module. PWM Channels: 16. PWM Resolution: 12-bit (4096 steps). Servo Motor Connectors: Standard 3-pin (Signal, V+, GND) headers. Q: What are the key specifications of the PCA9685 16-channel PWM servo shield driver module? A: This module is based on the PCA9685 chip, providing 16 independent 12-bit PWM channels for precise servo or LED control. It communicates via the I2C interface, allowing control of multiple modules from a single bus, and typically operates on a 5V logic level.. Q: How durable and reliable is this PCA9685 module for controlling servos? A: The module is built with a robust PCB and quality components, designed for stable performance in hobbyist and prototyping environments. It features built-in pull-up resistors and a logic level converter for reliable I2C communication with 3.3V boards like the Raspberry Pi.. Q: Is this PCA9685 PWM driver module compatible with a Raspberry Pi 4? A: Yes, this module is fully compatible with the Raspberry Pi 4, as well as earlier models like the Pi 3 and Pi Zero. It connects directly to the Pi's GPIO header using the I2C pins, making it an ideal shield for robotics and automation projects.. Q: Does this PCA9685 servo shield come with any warranty or guarantee? A: This product is backed by a standard manufacturer's warranty against defects in materials and workmanship. For specific warranty duration and terms, please refer to the seller's product listing or contact customer support directly.. Q: Is this PCA9685 module a good value compared to other servo controllers? A: Yes, this offers excellent value for DIY enthusiasts and professionals seeking quality without premium brand pricing. It delivers reliable 16-channel PWM control via I2C, a common feature in more expensive boards, making it a cost-effective solution for multi-servo projects..