source code migrating from gitlab

003TempHumidity/CMakeLists.txt

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+# The following five lines of boilerplate have to be in your project's
+# CMakeLists in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.16)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(temp-humidity)

003TempHumidity/main/CMakeLists.txt

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+idf_component_register(SRCS "temp-humidity.c"
+                    INCLUDE_DIRS ".")

003TempHumidity/main/idf_component.yml

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+## IDF Component Manager Manifest File
+dependencies:
+  ## Required IDF version
+  idf:
+    version: '>=4.1.0'
+  # # Put list of dependencies here
+  # # For components maintained by Espressif:
+  # component: "~1.0.0"
+  # # For 3rd party components:
+  # username/component: ">=1.0.0,<2.0.0"
+  # username2/component2:
+  #   version: "~1.0.0"
+  #   # For transient dependencies `public` flag can be set.
+  #   # `public` flag doesn't have an effect dependencies of the `main` component.
+  #   # All dependencies of `main` are public by default.
+  #   public: true
+  zorxx/dht: ^1.0.1
+  panigrah/esp32-idf-hd44780: ^0.0.3

003TempHumidity/main/temp-humidity.c

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+#include "HD44780.h"
+#include "dht.h"
+#include <esp_err.h>
+#include <esp_log.h>
+#include <freertos/FreeRTOS.h>
+#include <freertos/task.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#define DHT_PIN 25
+
+#define LCD_ADDR 0x27
+#define SDA_PIN 21
+#define SCL_PIN 22
+#define LCD_ROWS 16
+#define LCD_COLS 2
+
+float convertValue(int16_t val);
+float converTemp(int16_t celsius);
+
+void app_main(void) {
+
+  const char *tag = "TEMP_HUMID";
+  int16_t temp, humid;
+  char tempStr[32], humidStr[32];
+  ESP_LOGI(tag, "Starting our temp/humidity readings");
+  LCD_init(LCD_ADDR, SDA_PIN, SCL_PIN, LCD_COLS, LCD_ROWS);
+
+  while (1) {
+    LCD_clearScreen();
+
+    esp_err_t err = dht_read_data(DHT_TYPE_AM2301, DHT_PIN, &humid, &temp);
+
+    if (err != ESP_OK) {
+      ESP_LOGE(tag, "Error: could not read DHT22 Sensor");
+    } else {
+      // printf("Temp: %d.%d C\n", temp / 10, temp % 10);
+      // printf("Humidity: %d.%d%%\n", humid / 10, humid % 10);
+      //
+      float celsius = convertValue(temp);
+      float humidity = convertValue(humid);
+      float fahrenheit = converTemp(celsius);
+
+      sprintf(tempStr, "T: %.1fC / %.1fF", celsius, fahrenheit);
+      sprintf(humidStr, "Humidity: %.1f%%", humidity);
+      LCD_writeStr(tempStr);
+      LCD_setCursor(0, 1);
+      LCD_writeStr(humidStr);
+    }
+
+    vTaskDelay(5000 / portTICK_PERIOD_MS);
+  }
+}
+
+float convertValue(int16_t val) { return val / 10.0f; }
+
+float converTemp(int16_t celsius) { return celsius * (9.0f / 5.0f) + 32.0f; }