/**
 * test_pca9685.c
 * 简单的PCA9685测试程序
 * 编译：gcc -o test_pca9685 test_pca9685.c pca9685.c -lm
 * 运行：sudo ./test_pca9685
 */

#include <stdio.h>
#include <unistd.h>
#include "pca9685.h"

int main(int argc, char *argv[]) {
    pca9685_t pca;
    const char *i2c_dev = "/dev/i2c-0";
    uint8_t addr = PCA9685_DEFAULT_ADDR;
    
    if (argc > 1) i2c_dev = argv[1];
    if (argc > 2) addr = (uint8_t)strtol(argv[2], NULL, 0);
    
    printf("PCA9685 Test Program\n");
    printf("====================\n");
    printf("Device: %s, Address: 0x%02X\n\n", i2c_dev, addr);
    
    printf("Initializing...\n");
    if (pca9685_init(&pca, i2c_dev, addr) < 0) {
        fprintf(stderr, "Initialization failed!\n");
        return 1;
    }
    
    pca9685_print_status(&pca);
    
    printf("Testing Channel 0...\n");
    
    printf("  Full ON\n");
    pca9685_led_on(&pca, 0);
    sleep(1);
    
    printf("  50%% brightness\n");
    pca9685_led_brightness(&pca, 0, 128);
    sleep(1);
    
    printf("  25%% brightness\n");
    pca9685_led_brightness(&pca, 0, 64);
    sleep(1);
    
    printf("  Full OFF\n");
    pca9685_led_off(&pca, 0);
    sleep(1);
    
    printf("Testing all channels...\n");
    for (int i = 0; i < 16; i++) {
        pca9685_led_on(&pca, i);
        usleep(100000);
    }
    sleep(1);
    
    printf("All OFF\n");
    pca9685_all_off(&pca);
    
    printf("\nClosing...\n");
    pca9685_close(&pca);
    
    printf("Test completed.\n");
    return 0;
}