{"id":616,"date":"2020-07-02T11:28:30","date_gmt":"2020-07-02T03:28:30","guid":{"rendered":"https:\/\/www.iotch.xyz\/?p=616"},"modified":"2020-07-02T11:28:30","modified_gmt":"2020-07-02T03:28:30","slug":"esp8266%e9%80%9a%e8%bf%87mqtt%e6%8e%a5%e5%85%a5home-assistant","status":"publish","type":"post","link":"https:\/\/www.iotch.xyz\/?p=616","title":{"rendered":"ESP8266\u901a\u8fc7MQTT\u63a5\u5165Home Assistant"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">1.\u7b80\u4ecb<\/h2>\n\n\n\n<p>ESP8266\u662f\u4e00\u6b3e\u4e32\u53e3WiFi\u6a21\u5757\uff0c\u5185\u90e8\u96c6\u6210MCU\u80fd\u5b9e\u73b0\u5355\u7247\u673a\u4e4b\u95f4\u4e32\u53e3\u901a\u4fe1\uff0c \u8fd9\u6b3e\u6a21\u5757\u7b80\u5355\u6613\u5b66\uff0c\u4f53\u79ef\u5c0f\uff0c\u4fbf\u4e8e\u5d4c\u5165\u5f0f\u5f00\u53d1\u3002<\/p>\n\n\n\n<p>\u672c\u6587\u4ecb\u7ecd\u7684\u662fESP8266\u7cfb\u5217\u4e2d\u7684ESP-01\uff0c\u8fd9\u6b3e\u82af\u7247\u4f7f\u7528\u4e863.3V\u7684\u76f4\u6d41\u7535\u6e90\uff0c\u4f53\u79ef\u5c0f\uff0c\u529f\u8017\u4f4e\uff0c\u652f\u6301\u900f\u4f20\uff0c\u4ef7\u683c\u4f4e\uff0c\u4e0b\u56fe\u662fESP8266\u7684ESP-01\u7cfb\u5217\uff0c\u76f8\u5e94\u7684\u8fd8\u6709ESP-02\uff0c03\u7b49\u7b49\uff0c\u5b83\u4eec\u4f7f\u7528\u7684\u6838\u5fc3\u82af\u7247\u90fd\u662f\u76f8\u540c\u7684\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic2.zhimg.com\/80\/v2-f1b33610f0db560af99473ab0bbc1da1_720w.jpg\" alt=\"\"\/><figcaption>ESP-01\u6a21\u5757<\/figcaption><\/figure>\n\n\n\n<p>ESP8266\u5b98\u65b9\u63d0\u4f9b\u7684rom\u4e3b\u8981\u6709\u4e24\u4e2a\uff0c\u4e00\u4e2a\u662f\u652f\u6301at\u547d\u4ee4\u4fee\u6539\u53c2\u6570\u7684at\u7cfb\u5217rom\uff0c\u4f7f\u7528\u6b64rom\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528at\u547d\u4ee4\u6765\u8bbe\u7f6e\u82af\u7247\u7684\u5927\u90e8\u5206\u53c2\u6570\uff0c\u540c\u65f6\u4e5f\u53ef\u5c06\u82af\u7247\u8bbe\u7f6e\u4e3a\u900f\u4f20\u6a21\u5f0f\uff0c\u8fd9\u6837ESP8266\u5c31\u76f8\u5f53\u4e8e\u5728\u4e92\u8054\u7f51\u548cUART\u4e4b\u95f4\u67b6\u8d77\u4e86\u4e00\u5ea7\u6865\u6881\u3002<\/p>\n\n\n\n<p>\u53e6\u4e00\u4e2a\u5c31\u662f\u7269\u8054\u7f51\u7684rom\u4e86\uff0c\u6b64rom\u53ef\u4ee5\u901a\u8fc7\u547d\u4ee4\u6765\u63a7\u5236ESP\u7684\u90e8\u5206GPIO\uff0c\u800c\u4e14ESP8266\u4e5f\u53ef\u4ee5\u91c7\u96c6\u4e00\u4e9b\u6e29\u6e7f\u5ea6\u4f20\u611f\u5668\u7684\u6570\u636e\uff0c\u7136\u540e\u53d1\u9001\u5230\u4e92\u8054\u7f51\u4e0a\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2.\u65b9\u6848<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic2.zhimg.com\/80\/v2-9fe96b42aa55e273baf14a9ecda0382d_720w.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>ESP-01\u505a\u4e3aMQTT\u7684\u5ba2\u6237\u7aef\uff0c\u8fde\u63a5\u5230MQTT Server\uff0c Home Assistant\u901a\u8fc7mqtt\u7ec4\u4ef6\u548cMQTT Server\u901a\u4fe1\uff0c\u5b9e\u73b0\u63a7\u5236ESP-01\u7684\u529f\u80fd<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.\u786c\u4ef6\u548c\u5f00\u53d1\u73af\u5883<\/h2>\n\n\n\n<p>\u9700\u8981\u7684\u786c\u4ef6\u4e3a\uff1aESP-01\u6a21\u5757\uff0c\u7ee7\u7535\u5668\u6a21\u5757\uff0c\u8fd0\u884cHome Assistant\u7684\u6811\u8393\u6d3e\u4e00\u5757<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic3.zhimg.com\/80\/v2-b777cf0af89afcc1fdbd95baf8cd38a6_720w.jpg\" alt=\"\"\/><figcaption>ESP-01\u548c\u7ee7\u7535\u5668\u6a21\u5757<\/figcaption><\/figure>\n\n\n\n<p>\u8f6f\u4ef6\uff1aArduino\u901a\u8fc7\u652f\u6301ESP8266\u7684\u7ec4\u4ef6\u8fdb\u884c\u5f00\u53d1<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4.\u4ee3\u7801<\/h2>\n\n\n\n<p>4.1\u5b9a\u4e49\u57fa\u672c\u53d8\u91cf<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#define SWITCH_ON     0  \n#define SWITCH_OFF    1\n\nconst char* ssid = \"xxx\";          \/\/Wi-Fi\u70ed\u70b9\nconst char* password = \"xxx\";  \/\/Wi-Fi\u5bc6\u7801\nconst char* mqtt_server = \"192.168.3.77\";    \/\/\u670d\u52a1\u5668\u7f51\u5740\u6216\u8005IP\u5730\u5740\n\nconst char* TOPIC_CONFIG =  \"ESP-01\/switch\/config\";                    \nconst char* TOPIC_COMMAND = \"ESP-01\/switch\/set\";                    \nconst char* TOPIC_STATE =   \"ESP-01\/switch\/state\";  \n\nconst char* client_id = \"client-xxx\";     \/\/ \u6807\u8bc6\u5f53\u524d\u8bbe\u5907\u7684\u5ba2\u6237\u7aef\u7f16\u53f7\nconst char* device_name = \"esp_01_2_switch_1\";\n\nconst char* mqtt_user = \"mqtt\";\nconst char* mqtt_password = \"mqtt1234\";\n\nWiFiClient espClient;\nPubSubClient client(espClient);\n\nconst int PIN_SWITCH = 0;\n\nlong last_msg = 0;\nchar msg&#91;64];\n\nint switch_value = SWITCH_OFF; \nString set_str = \"\";<\/code><\/pre>\n\n\n\n<p>\u5b9a\u4e49\u4e863\u4e2aMQTT Topic\uff1a<\/p>\n\n\n\n<p>TOPIC_CONFIG: \u53d1\u9001\u914d\u7f6e\u4fe1\u606f\u7528<\/p>\n\n\n\n<p>TOPIC_COMMAND\uff1a \u63a5\u6536\u63a7\u5236\u547d\u4ee4<\/p>\n\n\n\n<p>TOPIC_STATE\uff1a \u62a5\u544a\u72b6\u6001\u7528<\/p>\n\n\n\n<p>4.2\u521d\u59cb\u5316<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>void setup() {\n  Serial.begin(115200);\n  setup_wifi();\n  client.setServer(mqtt_server, 1883);\n  client.setCallback(callback);\n  pinMode(PIN_SWITCH, OUTPUT);\n}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>void setup_wifi() {\n  delay(100);\n  WiFi.begin(ssid, password);           \/\/ \u8fde\u63a5\u5230WiFi\u7f51\u7edc\n  while (WiFi.status() != WL_CONNECTED) {\n      delay(500);\n  }\n  Serial.println(\"WiFi connected\");\n  \/\/ Print the IP address\n  Serial.println(WiFi.localIP());\n  Serial.println(WiFi.macAddress());\n}<\/code><\/pre>\n\n\n\n<p>4.3 \u63a5\u6536MQTT\u6d88\u606f\u7684\u56de\u8c03\u51fd\u6570<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>void callback(char* topic, byte* payload, unsigned int length) {\n  Serial.print(\"Message arrived &#91;\"); \n  Serial.print(topic);   \n  Serial.print(\"] \");\n\n  set_str = \"\";\n  for (int i = 0; i &lt; length; i++) {\n    set_str += (char)payload&#91;i];\n  }  \n\n  String topic_str = topic;\n  Serial.println(set_str);\n\n  if (topic_str.equals(TOPIC_COMMAND)) {\n    set_switch(set_str);\n  }\n}<\/code><\/pre>\n\n\n\n<p>4.4 Wifi\u548cMQTT\u91cd\u65b0\u8fde\u63a5<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>void reconnect( ) {\n  if (WiFi.status() != WL_CONNECTED) {\n    Serial.println(\"WiFi is not connected, retry setup\");\n    setup_wifi();\n  }\n    \n  while (!client.connected()) {\n    Serial.println(\"MQTT connecting...\");\n    if (client.connect(client_id, mqtt_user, mqtt_password)) {              \n      Serial.println(\"MQTT connect success.\");  \n      mqtt_config();\n      client.subscribe(TOPIC_COMMAND);       \n    } else {\n      delay(5000);  \n    }\n  }\n}<\/code><\/pre>\n\n\n\n<p>4.5 \u4e3b\u5faa\u73af<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>void loop() {\n\n  if (!client.connected()) {\n    reconnect();\n  }\n  client.loop();\n    \n  long now = millis();\n  if (now - last_msg > 5000) {\n    last_msg = now;\n    pub_mqtt_state();\n  }\n  \n  delay(100);  \n}<\/code><\/pre>\n\n\n\n<p>4.6 \u8bbe\u7f6e\u5f00\u5173\u72b6\u6001<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>char* get_state(){\n  if (switch_value == SWITCH_ON) {\n    return \"ON\";\n  } else {\n    return \"OFF\";\n  }\n}\n\nboolean set_switch(String set_str) {\n  client.publish(TOPIC_STATE, set_str.c_str()); \n  Serial.print(\"Recv command:\");\n  Serial.println(set_str.c_str());\n\n  if (set_str.equals(\"ON\")) {\n    switch_value = SWITCH_ON;\n  } else if (set_str.equals(\"OFF\")){\n    switch_value = SWITCH_OFF;\n  } else {\n    return false; \n  }\n\n  digitalWrite(PIN_SWITCH, switch_value);\n  pub_mqtt_state();\n  return true;\n}\n<\/code><\/pre>\n\n\n\n<p>4.7 \u53d1\u5e03MQTT\u72b6\u6001\u548c\u914d\u7f6e\u6d88\u606f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>void pub_mqtt_state() {\n  if(switch_value == SWITCH_ON){\n    client.publish(TOPIC_STATE, \"ON\");    \n  } else {\n    client.publish(TOPIC_STATE, \"OFF\");   \n  }  \n}\n\nvoid mqtt_config() {\n  String head = \"{\";\n  String name_str = \"\"name\": \"\" + String(device_name) + \"\", \";\n  String cmd_topic = \"\"command_topic\": \"\" + String(TOPIC_COMMAND) + \"\", \";\n  String state_topic = \"\"state_topic\": \"\" + String(TOPIC_STATE) + \"\"\";\n  String end_str = \"}\";\n  String config = \"{\" + name_str + \", \" + state_topic + \", \" + cmd_topic + \"}\";\n  Serial.println(config.c_str());\n  \n  int msgLen = head.length() + name_str.length() + cmd_topic.length() + state_topic.length() + end_str.length();\n  \/\/\u53d1\u9001\u957f\u6587\u672c\u9700\u8981\u53e6\u5916\u5904\u7406\n  client.beginPublish(TOPIC_CONFIG, msgLen, false);\n  client.print(head);\n  client.print(name_str);\n  client.print(cmd_topic);\n  client.print(state_topic);\n  client.print(end_str);\n  client.endPublish();\n}\n\n<\/code><\/pre>\n\n\n\n<p>\u6ce8\u610f\uff1a\u53d1\u5e03\u957f\u6d88\u606f\u65f6\uff0c\u8981\u505a\u4e13\u95e8\u5904\u7406\uff0c\u901a\u8fc7client.beginPublish\uff0cclient.endPublish();<\/p>\n\n\n\n<p>5. Home Assistant\u914d\u7f6e<\/p>\n\n\n\n<p>5.1 \u5b89\u88c5MQTT Server<\/p>\n\n\n\n<p>\u5728\u8fd0\u884cHome Assistant\u7684\u6811\u8393\u6d3e\u4e0a\u5b89\u88c5MQTT Server\uff0c \u9009\u62e9\u7684\u7248\u672c\u662fmosquitto<\/p>\n\n\n\n<p>5.2 \u6811\u8393\u6d3e\u914d\u7f6e<\/p>\n\n\n\n<p>\u5728Home Assistant\u7684Web\u4e0a\uff0c\u201d\u914d\u7f6e\u201d-&gt;\"\u96c6\u6210\"\uff0c \u6dfb\u52a0MQTT\uff1b<\/p>\n\n\n\n<p>\u5728configuration.yaml\u4e2d\u914d\u7f6e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>switch: !include switchs.yaml<\/code><\/pre>\n\n\n\n<p>\u5728switchs.yaml\u4e2d\u5b9a\u4e49mqtt\u5f00\u5173\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>- platform: mqtt\n  name: \"ESP-01 switch1\"\n  state_topic: \"ESP-01\/switch\/state\"\n  command_topic: \"ESP-01\/switch\/set\"\n  payload_on: \"ON\"\n  payload_off: \"OFF\"\n  state_on: \"ON\"\n  state_off: \"OFF\"\n  optimistic: false\n  qos: 0\n  retain: true\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u6837\uff0c\u5728Home Assistant\u7684\u754c\u9762\u4e2d\u5c31\u53ef\u4ee5\u63a7\u5236\u7ee7\u7535\u5668\u5f00\u542f\u548c\u5173\u95ed\u4e86\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic3.zhimg.com\/80\/v2-f4ea82c7eca01363ff6d9cef0542b612_720w.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>6. \u603b\u7ed3<\/p>\n\n\n\n<p>\u53ef\u4ee5\u628a\u5c0f\u7c73\u7f51\u5173\u4e5f\u63a5\u5165\u5230Home Assistant\uff0c\u8fd9\u6837\uff0c\u901a\u8fc7\u5c0f\u7c73\u7684\u65e0\u7ebf\u5f00\u5173\u5c31\u53ef\u4ee5\u76f4\u63a5\u63a7\u5236ESP-01\u4e0a\u7684\u7ee7\u7535\u5668\u4e86\u3002<\/p>\n\n\n\n<p>\u539f\u6587\u94fe\u63a5\uff1a<a href=\"https:\/\/zhuanlan.zhihu.com\/p\/100674816\" target=\"_blank\"  rel=\"nofollow\" >https:\/\/zhuanlan.zhihu.com\/p\/100674816<\/a><\/p>\n<button class=\"simplefavorite-button\" data-postid=\"616\" data-siteid=\"1\" data-groupid=\"1\" data-favoritecount=\"1\" style=\"\">\u6536\u85cf <i class=\"sf-icon-star-empty\"><\/i><\/button>","protected":false},"excerpt":{"rendered":"<p>1.\u7b80\u4ecb ESP8266\u662f\u4e00\u6b3e\u4e32\u53e3WiFi\u6a21\u5757\uff0c\u5185\u90e8\u96c6\u6210MCU\u80fd\u5b9e\u73b0\u5355\u7247\u673a\u4e4b\u95f4\u4e32\u53e3\u901a\u4fe1\uff0c \u8fd9\u6b3e\u6a21\u5757\u7b80\u5355\u6613\u5b66\uff0c\u4f53\u79ef\u5c0f\uff0c\u4fbf\u4e8e\u5d4c\u5165\u5f0f\u5f00\u53d1 &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,10],"tags":[],"class_list":["post-616","post","type-post","status-publish","format-standard","hentry","category-9","category-10"],"_links":{"self":[{"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=\/wp\/v2\/posts\/616","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=616"}],"version-history":[{"count":0,"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=\/wp\/v2\/posts\/616\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=616"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=616"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}