ESP32 + DHT11 + RGB

#include "freertos/FreeRTOS.h"       // для vTaskDelay, pdMS_TO_TICKS, ESP_OK, ESP_FAIL и т.д.
#include "esp_log.h"                 // для макроса ESP_LOGI
#include "dht.h"                     // для функций работы с DHT


static const char *TAG = "thsensor";

#define DHT11_PIN   4
#define R_PIN       16
#define G_PIN       17
#define B_PIN       18
#define LOW         0
#define HIGH        1

void app_main(void)
{
    float humidity, temperature;
    float humidity_prev = 0.0f;

    gpio_reset_pin(R_PIN);
    gpio_set_direction(R_PIN, GPIO_MODE_OUTPUT);
    gpio_reset_pin(G_PIN);
    gpio_set_direction(G_PIN, GPIO_MODE_OUTPUT);
    gpio_reset_pin(B_PIN);
    gpio_set_direction(B_PIN, GPIO_MODE_OUTPUT);

    while (1)
    {
        if (dht_read_float_data(DHT_TYPE_DHT11, DHT11_PIN, &humidity, &temperature) == ESP_OK) {
            ESP_LOGI(TAG, "Humidity: %.1f%% Temperature: %.1fC", humidity, temperature);
            if (humidity != humidity_prev) {
                if (humidity < 40) {
                    gpio_set_level(R_PIN, LOW);
                    gpio_set_level(G_PIN, LOW);
                    gpio_set_level(B_PIN, LOW);

                    gpio_set_level(R_PIN, HIGH);
                }
                else if (humidity >= 40 && humidity <= 60) {
                    gpio_set_level(R_PIN, LOW);
                    gpio_set_level(G_PIN, LOW);
                    gpio_set_level(B_PIN, LOW);

                    gpio_set_level(G_PIN, HIGH);
                }
                else
                {
                    gpio_set_level(R_PIN, LOW);
                    gpio_set_level(G_PIN, LOW);
                    gpio_set_level(B_PIN, LOW);

                    gpio_set_level(B_PIN, HIGH);
                }
            }
            humidity_prev = humidity;
        }
        else
            ESP_LOGI(TAG, "Could not read data from sensor");
        vTaskDelay(pdMS_TO_TICKS(2000));
    }
}