16-CH Servo Motor Controller I2C PCA9685 Servo PWM Driver
The 16-Channel PCA9685 Servo Motor Controller is an I2C-based PWM driver board designed for controlling up to 16 servo motors independently with high precision. Featuring a built-in clock and 12-bit PWM resolution, it reduces MCU workload by generating stable PWM signals directly from the board. Compatible with both 3.3V and 5V systems, it supports cascading up to 62 modules for 992 PWM outputs. Ideal for robotics, automation, LED control, and multi-servo Arduino projects.
وحدة التحكم بمحركات السيرفو PCA9685 ذات 16 قناة هي لوحة تشغيل PWM تعمل عبر بروتوكول I2C للتحكم المستقل بما يصل إلى 16 محرك سيرفو بدقة عالية. تحتوي على ساعة داخلية ودقة PWM 12-bit مما يقلل الحمل على المتحكم الرئيسي عبر توليد الإشارات مباشرة من اللوحة. تدعم أنظمة 3.3V و5V مع إمكانية توصيل حتى 62 لوحة للحصول على 992 قناة PWM، مما يجعلها مثالية للروبوتات والأتمتة ومشاريع Arduino متعددة المحركات.
The 16-Channel Servo Motor Controller PCA9685 PWM Driver Board is a powerful and efficient I2C-based module designed for controlling multiple servo motors, LEDs, and other PWM-driven devices simultaneously. Built around the highly reliable PCA9685 chip, the module provides 16 independent PWM output channels with precise 12-bit resolution for smooth and accurate control.
Unlike traditional PWM driver solutions that continuously consume MCU resources, this board includes a built-in clock generator, allowing it to generate PWM signals independently without occupying the microcontroller processor. This significantly improves performance in robotics, automation, and multi-servo applications.
The board supports both 3.3V and 5V logic systems, making it compatible with Arduino, Raspberry Pi, ESP32, STM32, and other microcontrollers. With six configurable address pins, users can cascade up to 62 boards on the same I2C bus, achieving a total of 992 PWM outputs.
Additional protection and convenience features include reverse polarity protection, output enable pin, power terminal input, onboard capacitor stabilization, and 220-ohm protection resistors on all PWM outputs.
Specifications
- Product Type: 16-Channel PWM Servo Driver
- Main Chip: PCA9685
- Communication Interface: I2C
- PWM Channels: 16 Channels
- PWM Resolution: 12-bit
- PWM Frequency: Approximately 1.6KHz
- Operating Logic Voltage: 3.3V / 5V Compatible
- Maximum Output Voltage: Up to 6V
- Maximum Cascading Boards: 62 Modules
- Maximum PWM Outputs: 992 Channels
- Output Configuration: Totem-pole or Open-collector
- Protection Features: Reverse polarity protection
- Indicator: Green power LED
- Additional Components:
- 220Ω output protection resistors
- Large capacitor on V+ line
- Output enable pin
- Power input terminal
Applications
- Multi-servo robotic systems
- Robotic arms and humanoid robots
- Arduino and Raspberry Pi projects
- LED brightness control
- Automation systems
- RC vehicle control systems
- Smart home electronics
- Motion control applications
- Stepper motor control projects
- Educational and engineering projects