source code migrating from gitlab

002LCD_1602/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(lcd-16x2)

002LCD_1602/main/CMakeLists.txt

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+idf_component_register(SRCS "lcd-16x2.c"
+                    INCLUDE_DIRS ".")

002LCD_1602/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
+  panigrah/esp32-idf-hd44780: ^0.0.3

002LCD_1602/main/lcd-16x2.c

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+#include "HD44780.h"
+#include <driver/i2c.h>
+#include <esp_log.h>
+#include <freertos/FreeRTOS.h>
+#include <freertos/task.h>
+#include <stdio.h>
+
+#define LCD_ADDR 0x27
+#define SDA_PIN 21
+#define SCL_PIN 22
+#define LCD_COLS 16
+#define LCD_ROWS 2
+
+void app_main(void) {
+  char *tag = "LCD_16x2";
+
+  ESP_LOGI(tag, "starting app_main");
+
+  LCD_init(LCD_ADDR, SDA_PIN, SCL_PIN, LCD_COLS, LCD_ROWS);
+
+  // LCD_clearScreen();
+  //  LCD_writeStr("Hello There");
+  //  LCD_setCursor(0, 1);
+  //  LCD_writeStr("  Second Row!      ");
+
+  char num[8];
+  while (true) {
+    LCD_clearScreen();
+    LCD_writeStr("Counting Down");
+
+    for (int i = 10; i >= 0; i--) {
+      LCD_setCursor(8, 1);
+      sprintf(num, "%d", i);
+      LCD_writeStr(num);
+      vTaskDelay(1000 / portTICK_PERIOD_MS);
+
+      LCD_setCursor(0, 1);
+      LCD_writeStr("                ");
+    }
+    LCD_clearScreen();
+    LCD_writeStr("Liftoff!");
+    vTaskDelay(2000 / portTICK_PERIOD_MS);
+  }
+}