Moved examples to new folders / categories. Removed example numbers from example names

examples/get-started/blink/Makefile

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+#
+# This is a project Makefile. It is assumed the directory this Makefile resides in is a
+# project subdirectory.
+#
+
+PROJECT_NAME := blink
+
+include $(IDF_PATH)/make/project.mk
+

examples/get-started/blink/README.md

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+# Blink Example
+
+Starts a FreeRTOS task to blink an LED
+
+See the README.md file in the upper level 'examples' directory for more information about examples.

examples/get-started/blink/main/Kconfig.projbuild

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+menu "Example Configuration"
+
+config BLINK_GPIO
+    int "Blink GPIO number"
+	range 0 34
+	default 5
+	help
+		GPIO number (IOxx) to blink on and off.
+
+		Some GPIOs are used for other purposes (flash connections, etc.) and cannot be used to blink.
+
+		GPIOs 35-39 are input-only so cannot be used as outputs.
+
+endmenu

examples/get-started/blink/main/blink.c

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+/* Blink Example
+
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+*/
+#include <stdio.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "esp_system.h"
+#include "nvs_flash.h"
+#include "driver/gpio.h"
+#include "sdkconfig.h"
+
+/* Can run 'make menuconfig' to choose the GPIO to blink,
+   or you can edit the following line and set a number here.
+*/
+#define BLINK_GPIO CONFIG_BLINK_GPIO
+
+void blink_task(void *pvParameter)
+{
+    /* Configure the IOMUX register for pad BLINK_GPIO (some pads are
+       muxed to GPIO on reset already, but some default to other
+       functions and need to be switched to GPIO. Consult the
+       Technical Reference for a list of pads and their default
+       functions.)
+    */
+    gpio_pad_select_gpio(BLINK_GPIO);
+    /* Set the GPIO as a push/pull output */
+    gpio_set_direction(BLINK_GPIO, GPIO_MODE_OUTPUT);
+    while(1) {
+        /* Blink off (output low) */
+        gpio_set_level(BLINK_GPIO, 0);
+        vTaskDelay(1000 / portTICK_PERIOD_MS);
+        /* Blink on (output high) */
+        gpio_set_level(BLINK_GPIO, 1);
+        vTaskDelay(1000 / portTICK_PERIOD_MS);
+    }
+}
+
+void app_main()
+{
+    nvs_flash_init();
+    xTaskCreate(&blink_task, "blink_task", 512, NULL, 5, NULL);
+}

examples/get-started/blink/main/component.mk

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+#
+# "main" pseudo-component makefile.
+#
+# (Uses default behaviour of compiling all source files in directory, adding 'include' to include path.)

examples/get-started/blink/sdkconfig.defaults

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+# Disable WiFi stack by default
+CONFIG_WIFI_ENABLED=n