#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include "esp_log.h"
#include "dht.h"
#include "ssd1306.h"

#define DHT_PIN 4  // DHT22连接的GPIO引脚
#define OLED_SDA 21  // OLED显示屏的SDA引脚
#define OLED_SCL 20  // OLED显示屏的SCL引脚

void app_main(void)
{
    // 初始化DHT传感器
    dht_sensor_type_t sensor_type = DHT_TYPE_DHT22;  // 使用DHT22传感器
    dht_sensor_handle_t dht_handle = dht_init(sensor_type, DHT_PIN);
    if (!dht_handle) {
        ESP_LOGE("DHT", "Failed to initialize DHT sensor");
        return;
    }

    // 初始化OLED显示屏
    ssd1306_handle_t oled_handle = ssd1306_create(SSD1306_I2C_PORT, OLED_SDA, OLED_SCL);
    if (!oled_handle) {
        ESP_LOGE("OLED", "Failed to initialize OLED display");
        return;
    }

    while (1) {
        float temperature, humidity;
        if (dht_read_data(dht_handle, &temperature, &humidity) == ESP_OK) {
            char temp_str[20];
            char hum_str[20];
            sprintf(temp_str, "Temp: %.1f C", temperature);
            sprintf(hum_str, "Hum: %.1f %%", humidity);

            // 在OLED上显示温湿度
            ssd1306_clear_screen(oled_handle, false);
            ssd1306_display_text(oled_handle, 0, temp_str, 12, false);
            ssd1306_display_text(oled_handle, 1, hum_str, 12, false);
            ssd1306_refresh_gram(oled_handle);
        } else {
            ESP_LOGE("DHT", "Failed to read data from DHT sensor");
        }

        vTaskDelay(pdMS_TO_TICKS(5000));  // 5秒延迟
    }
}