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The PCA9685 16-channel servo controller is an advanced and efficient solution for the simultaneous control of multiple servo motors, designed for robotics, automation, Arduino, Raspberry Pi and microcontroller-based electronic systems. Thanks to the well-known 12-bit PCA9685 PWM chip, this board can manage up to 16 independent channels with accurate and stable PWM signals.
This PWM servo driver board uses I2C communication, significantly reducing microcontroller pin usage while making system expansion much easier. It is ideal for applications such as robotic arms, hexapod robots, RC vehicles, home automation systems, animatronics, 3D printing and educational electronics projects.
The configurable PWM frequency allows control of both analogue servos and digital servos, as well as other compatible devices including LEDs, relays and small actuators. Its architecture supports daisy-chaining multiple boards through I2C addressing, increasing the total number of available channels for professional projects and large-scale developments.
With its compact design and easy integration, this servo controller for Arduino and Raspberry Pi is an excellent choice for developers, makers, students and engineers looking for a reliable, stable and low-power solution for high-precision motion control.
Key advantages of this 16-channel PCA9685 board include high-resolution 12-bit PWM output, compatibility with multiple platforms, low power consumption and the ability to control numerous devices from a single I2C bus. In addition, it features independent servo power terminals to improve overall electrical stability.
If you are looking for a reliable, compact and easy-to-program I2C PWM servo controller, this PCA9685-based board provides a professional solution for automation systems, advanced robotics and precision electronic control applications.
| Model | PCA9685 16-Channel Controller |
| Main Chip | 12-bit PCA9685 PWM |
| Number of Channels | 16 independent PWM channels |
| PWM Resolution | 12-bit (4096 steps) |
| Communication Interface | I2C |
| I2C Address | Configurable via jumpers |
| Logic Voltage | 3.3V / 5V compatible |
| Servo Supply Voltage | 5V – 6V DC |
| PWM Frequency | 40 Hz – 1000 Hz configurable |
| Connection Interface | Standard servo headers and terminals |
| Compatibility | Arduino, Raspberry Pi, ESP32, STM32 and other microcontrollers |
| Daisy-Chain Expansion | Up to 62 modules on the same I2C bus |
| Maximum Number of Servos | 992 servos through expansion |
| Applications | Robotics, home automation, automation systems, animatronics, DIY projects |
| Approximate Dimensions | 62 mm x 25 mm x 3 mm |
| Approximate Weight | 10 g |
| Operating Temperature | -40 °C to +85 °C |
