The multiPCA9685 library is designed to manage and control an unlimited number of PCA9685 devices via a single object. This simplifies the control of large numbers of PWM devices (such as servos or LEDs) by abstracting the management of multiple I2C devices into a single controller class. This library is constructed and tested on Ubuntu 22.04 using Raspberry Pi 4b. An arduino IDE version can be found at multiPCA9685 library

• Will Hickmott
  GitHub: TheSpaceEgg

• Control unlimited numbers of PCA9685 devices across multiple I2C buses.
• Set PWM frequency and individual PWM signals for each device.
• Debug mode to track and monitor the status of each device.
• Easily scalable for complex hardware setups.

This library depends on the i2cdevice library, which handles I2C communication. You can find it here:
i2cdevice GitHub Repository

To use the multiPCA9685 library, include the library and its dependencies in your project. Here’s an example of basic usage:

#include "multiPCA9685.h"

int main() {
    std::vector<std::pair<int, uint8_t>> devices = {{1, 0x40}, {1, 0x41}, {2, 0x42}};
    MultiPCA9685 PCAobj(devices, 50);

    // Set PWM for the first motor on the first PCA9685
    PCAobj.setPWM(0, 0, 2000);
    // Set PWM for the first motor on the third PCA9685
    PCAobj.setPWM(47, 0, 2000);

    // Output current setup
    PCAobj.getSetup();

    return 0;
}