C++ (Cpp) PCA9685::initialize示例

示例#1

文件： LED.cpp 项目： AlexeyBulatov/Navio2

int main()
{
    static const uint8_t outputEnablePin = RPI_GPIO_27;

    Pin pin(outputEnablePin);

    if (pin.init()) {
        pin.setMode(Pin::GpioModeOutput);
        pin.write(0); /* drive Output Enable low */
    } else {
        fprintf(stderr, "Output Enable not set. Are you root?\n");
    }

    PCA9685 pwm;

    pwm.initialize();

    uint16_t R = 0, G = 0, B = 4095;

    pwm.setPWM(2, R);
    pwm.setPWM(1, G);
    pwm.setPWM(0, B);
    printf("LED is yellow\n");
    sleep(1);

    while (true) {
        for (R = 0; R < 4095; R++)
            pwm.setPWM(2, R);
        printf("LED is green\n");
        sleep(1);

        for (B = 4095; B > 0; B--)
            pwm.setPWM(0, B);
        printf("LED is cyan\n");
        sleep(1);

        for (G = 0; G < 4095; G++)
            pwm.setPWM(1, G);
        printf("LED is blue\n");
        sleep(1);

        for (R = 4095; R > 0; R--)
            pwm.setPWM(2, R);
        printf("LED is magneta\n");
        sleep(1);

        for (B = 0; B < 4095; B++)
            pwm.setPWM(0, B);
        printf("LED is red\n");
        sleep(1);

        for (G = 4095; G > 0; G--)
            pwm.setPWM(1, G);
        printf("LED is yellow\n");
        sleep(1);

    }

    return 0;
}

示例#2

文件： Serero.bk.cpp 项目： samsface/pi

int main()
{
    static const uint8_t outputEnablePin = RPI_GPIO_27;

    Pin pin(outputEnablePin);

    if (pin.init()) {
        pin.setMode(Pin::GpioModeOutput);
        pin.write(0); /* drive Output Enable low */
    } else {
        fprintf(stderr, "Output Enable not set. Are you root?");
    }

    PCA9685 pwm;

    pwm.initialize();
    pwm.setFrequency(50);

    for(int i = 3; i < 13; i++){
        pwm.setPWMmS(i, SERVO_MAX);
        sleep(1);
        pwm.setPWMmS(i, SERVO_MIN);
        sleep(1);
    }

    return 0;
}