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16-Channel 12-bit PWM/Servo Driver I2C interface PCA9685 for Arduino Raspberry Pi

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  1. Adjustable frequency PWM up to about 1.6 KHz
  2. 12-bit resolution for each output – for servos, that means about 4us resolution at a 60Hz update rate
  3. Configurable push-pull or an open-drain output
  4. The output enable pin to quickly disable all the outputs
  5. Terminal block for power input
  6. Reverse polarity protection on the terminal block input
  7. Green power-good LED

456.00 (Price Excl. GST) 386.44

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If you want to make a robot that has lots of moving parts or if you want to control too many LEDs with PWM outputs,  then the limited PWM outputs of your microcontroller would be a big problem for you. To overcome this problem, the only thing you should do is to get a 16-channel 12-bit PWM/Servo Driver. You can control 16 free-running PWM outputs with a 16-channel 12-bit PWM/Servo Driver using only 2 pins.

It’s an I2C-controlled PWM driver with a built-in clock. That means you do not need to continuously send it to signal to tie up your microcontroller, it is completely free running! It is 5V compliant, which means you can control it from a 3.3V microcontroller and still safely drive up to 6V outputs.

With its 16 channels, the PCA9685 provides users with ample capacity to drive a variety of peripherals simultaneously. Each channel supports 12-bit resolution, offering finer control over servo positions or LED brightness levels.

One of the standout features of the PCA9685 is its ability to generate PWM (Pulse Width Modulation) signals, a fundamental technique in electronics for controlling analog circuits with digital outputs. PWM signals generated by the PCA9685 can be tailored to suit specific requirements, making it suitable for various applications, from robotics and automation to lighting control systems.

The PCA9685’s I2C interface simplifies connectivity and communication with microcontrollers like Arduino and Raspberry Pi. This serial communication protocol allows for straightforward interfacing and enables users to control multiple PCA9685 modules with minimal wiring complexity.

Moreover, the PCA9685 features a configurable internal oscillator, enabling users to adjust the PWM frequency to suit their application’s needs. This flexibility ensures compatibility with various devices and minimizes potential interference with other components in the system.

Furthermore, the PCA9685 includes hardware-based PWM output, offloading the burden from the host microcontroller. This feature is particularly advantageous in resource-constrained environments, as it frees up processing power for other tasks, enhancing overall system efficiency.

In addition to its technical capabilities, the PCA9685 boasts robust support within the maker community, with extensive documentation, tutorials, and libraries available for Arduino and Raspberry Pi platforms. This wealth of resources simplifies integration and accelerates development, making it accessible to both beginners and experienced enthusiasts alike.
In summary, the PCA9685 16-Channel 12-bit PWM/Servo Driver with I2C interface offers a powerful yet user-friendly solution for controlling multiple servo motors or LED arrays in Arduino and Raspberry Pi projects. Its high resolution, versatile features, ease of use, and extensive community support make it a preferred choice for hobbyists, educators, and professionals seeking to add precise control capabilities to their creations.

Features :

  1. Adjustable frequency PWM up to about 1.6 KHz
  2. 12-bit resolution for each output – for servos, that means about 4us resolution at a 60Hz update rate
  3. Configurable push-pull or an open-drain output
  4. The output enables the pin to quickly disable all the outputs
  5. Terminal block for power input
  6. Reverse polarity protection on the terminal block input
  7. Green power-good LED
  8. 3-pin connectors in groups of 4 so you can plug in 16 servos at once
  9. Chainable design
  10. A spot to place a big capacitor on the V+ line
  11. 220-ohm series resistors on all the output lines to protect them, and to make driving LEDs trivial.
  12. This board/chip uses I2C 7-bit address between 0x60-0x80, selectable with jumpers.

Package Includes :

1 x 16-Channel 12-bit PWM/Servo Driver