Enhancement/add to tools

wemos-relay/CMakeLists.txt

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+# The following four lines of boilerplate have to be in your project's CMakeLists
+# in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.5)
+
+# (Not part of the boilerplate)
+# This example uses an extra component for common functions such as Wi-Fi and Ethernet connection.
+set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/common_components/protocol_examples_common)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(mqtt_tcp)

wemos-relay/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 := mqtt_tcp
+
+EXTRA_COMPONENT_DIRS = $(IDF_PATH)/examples/common_components/protocol_examples_common
+
+include $(IDF_PATH)/make/project.mk

wemos-relay/README.md

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+This is an attempt at making an ESP IDF version of the ESP8266 mounted on the back of the PnP machine. 
+
+
+https://www.banggood.com/5pcs-Wemos-ESP8266-Development-Board-WIFI-Relay-Module-220V-10A-Relay-p-1464131.html?utm_source=googleshopping&utm_medium=cpc_organic&gmcCountry=NO&utm_content=minha&utm_campaign=minha-no-en-pc&currency=NOK&cur_warehouse=CN&createTmp=1&utm_source=googleshopping&utm_medium=cpc_bgs&utm_content=sandra&utm_campaign=sandra-ssc-no-no-all-0303&ad_id=422931176558&gclid=EAIaIQobChMIosmomp7F8wIVird3Ch0qcgOVEAQYDCABEgIRBPD_BwE
+
+https://ucexperiment.wordpress.com/2016/12/18/yunshan-esp8266-250v-15a-acdc-network-wifi-relay-module/

wemos-relay/main/CMakeLists.txt

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+idf_component_register(SRCS "app_main.c"
+                    INCLUDE_DIRS ".")

wemos-relay/main/Kconfig.projbuild

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+menu "Example Configuration"
+
+    config BROKER_URL
+        string "Broker URL"
+        default "mqtt://mqtt.eclipse.org"
+        help
+            URL of the broker to connect to
+
+    config BROKER_URL_FROM_STDIN
+        bool
+        default y if BROKER_URL = "FROM_STDIN"
+
+endmenu

wemos-relay/main/app_main.c

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+/* MQTT (over TCP) 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 <stdint.h>
+#include <stddef.h>
+#include <string.h>
+#include "esp_wifi.h"
+#include "esp_system.h"
+#include "nvs_flash.h"
+#include "esp_event.h"
+#include "esp_netif.h"
+#include "protocol_examples_common.h"
+#include "driver/gpio.h"
+
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "freertos/semphr.h"
+#include "freertos/queue.h"
+
+#include "lwip/sockets.h"
+#include "lwip/dns.h"
+#include "lwip/netdb.h"
+
+#include "esp_log.h"
+#include "mqtt_client.h"
+
+#define GPIO_OUTPUT_RELAY    4
+#define GPIO_OUTPUT_PIN_SEL  ((1ULL<<GPIO_OUTPUT_RELAY))
+
+
+static const char *TAG = "MQTT_EXAMPLE";
+
+
+static void handle_events(char* topic){
+  if(strcmp(topic, "bitraf/tool/small-smt/unlock") == 0){
+    gpio_set_level(GPIO_OUTPUT_RELAY, 1);
+  }
+  else if(strcmp(topic, "bitraf/tool/small-smt/lock") == 0){
+    gpio_set_level(GPIO_OUTPUT_RELAY, 0);
+  }
+  else{
+    printf("Unknown topic: '%s'\r\n", topic);
+  }
+}
+
+static esp_err_t mqtt_event_handler_cb(esp_mqtt_event_handle_t event)
+{
+    esp_mqtt_client_handle_t client = event->client;
+    int msg_id;
+    char topic[30];
+    // your_context_t *context = event->context;
+    switch (event->event_id) {
+        case MQTT_EVENT_CONNECTED:
+            ESP_LOGI(TAG, "MQTT_EVENT_CONNECTED");
+            msg_id = esp_mqtt_client_subscribe(client, "bitraf/tool/small-smt/unlock", 0);
+            ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
+
+            msg_id = esp_mqtt_client_subscribe(client, "bitraf/tool/small-smt/lock", 0);
+            ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
+            break;
+        case MQTT_EVENT_DISCONNECTED:
+            ESP_LOGI(TAG, "MQTT_EVENT_DISCONNECTED");
+            break;
+
+        case MQTT_EVENT_SUBSCRIBED:
+            ESP_LOGI(TAG, "MQTT_EVENT_SUBSCRIBED, msg_id=%d", event->msg_id);
+            msg_id = esp_mqtt_client_publish(client, "/topic/qos0", "data", 0, 0, 0);
+            ESP_LOGI(TAG, "sent publish successful, msg_id=%d", msg_id);
+            break;
+        case MQTT_EVENT_UNSUBSCRIBED:
+            ESP_LOGI(TAG, "MQTT_EVENT_UNSUBSCRIBED, msg_id=%d", event->msg_id);
+            break;
+        case MQTT_EVENT_PUBLISHED:
+            ESP_LOGI(TAG, "MQTT_EVENT_PUBLISHED, msg_id=%d", event->msg_id);
+            break;
+        case MQTT_EVENT_DATA:
+            ESP_LOGI(TAG, "MQTT_EVENT_DATA");
+            printf("TOPIC=%.*s\r\n", event->topic_len, event->topic);
+            printf("DATA=%.*s\r\n", event->data_len, event->data);
+            strncpy(topic, event->topic, event->topic_len);
+            topic[event->topic_len] = '\0';
+            handle_events(topic);
+            break;
+        case MQTT_EVENT_ERROR:
+            ESP_LOGI(TAG, "MQTT_EVENT_ERROR");
+            break;
+        default:
+            ESP_LOGI(TAG, "Other event id:%d", event->event_id);
+            break;
+    }
+    return ESP_OK;
+}
+
+static void mqtt_event_handler(void *handler_args, esp_event_base_t base, int32_t event_id, void *event_data) {
+    ESP_LOGD(TAG, "Event dispatched from event loop base=%s, event_id=%d", base, event_id);
+    mqtt_event_handler_cb(event_data);
+}
+
+static void mqtt_app_start(void)
+{
+    esp_mqtt_client_config_t mqtt_cfg = {
+        .uri = CONFIG_BROKER_URL,
+    };
+
+    esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
+    esp_mqtt_client_register_event(client, ESP_EVENT_ANY_ID, mqtt_event_handler, client);
+    esp_mqtt_client_start(client);
+}
+
+void app_main(void)
+{
+    gpio_config_t io_conf;
+    //disable interrupt
+    io_conf.intr_type = GPIO_INTR_DISABLE;
+    //set as output mode
+    io_conf.mode = GPIO_MODE_OUTPUT;
+    //bit mask of the pins that you want to set,e.g.GPIO15/16
+    io_conf.pin_bit_mask = GPIO_OUTPUT_PIN_SEL;
+    //disable pull-down mode
+    io_conf.pull_down_en = 0;
+    //disable pull-up mode
+    io_conf.pull_up_en = 0;
+    //configure GPIO with the given settings
+    gpio_config(&io_conf);
+
+    ESP_LOGI(TAG, "[APP] Startup..");
+    ESP_LOGI(TAG, "[APP] Free memory: %d bytes", esp_get_free_heap_size());
+    ESP_LOGI(TAG, "[APP] IDF version: %s", esp_get_idf_version());
+
+    esp_log_level_set("*", ESP_LOG_INFO);
+    esp_log_level_set("MQTT_CLIENT", ESP_LOG_VERBOSE);
+    esp_log_level_set("MQTT_EXAMPLE", ESP_LOG_VERBOSE);
+    esp_log_level_set("TRANSPORT_TCP", ESP_LOG_VERBOSE);
+    esp_log_level_set("TRANSPORT_SSL", ESP_LOG_VERBOSE);
+    esp_log_level_set("TRANSPORT", ESP_LOG_VERBOSE);
+    esp_log_level_set("OUTBOX", ESP_LOG_VERBOSE);
+
+    ESP_ERROR_CHECK(nvs_flash_init());
+    ESP_ERROR_CHECK(esp_netif_init());
+    ESP_ERROR_CHECK(esp_event_loop_create_default());
+
+    /* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.
+     * Read "Establishing Wi-Fi or Ethernet Connection" section in
+     * examples/protocols/README.md for more information about this function.
+
+     */
+    ESP_ERROR_CHECK(example_connect());
+
+    gpio_set_level(GPIO_OUTPUT_RELAY, 0);
+    mqtt_app_start();
+}