微信小程序+阿里云+stm32f407的一个项目_微信小程序+stm32

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微信小程序+阿里云+stm32f407的一个项目##

小程序参考了大神半颗心脏的博客和资料，
小程序多个页面推送数据
因为自己做小程序是类似商城的一个demo，
其中数据需要与单片机进行交互，而且需要再两个页面进行交互，
只能把连接阿里云的部分放在app.js中，通过使用 onfire.js 这个东西来实现多个页面实时监听app.js中的数据，
代码部分

其中小程序联网接阿里云那部分也是参考了那个博主的巧借阿里云物联网平台的免费连接，从微信小程序颜色采集控制 esp8266 输出七彩灯效果
这个文章，可以去博主的github中下载源码，
下面贴出 onfire.js 的源码

/**
  Copyright (c) 2016 hustcc http://www.atool.org/
  License: MIT 
  https://github.com/hustcc/onfire.js
**/
/* jshint expr: true */ 
!function (root, factory) {
  if (typeof module === 'object' && module.exports)
    module.exports = factory();
  else
    root.onfire = factory();
}(typeof window !== 'undefined' ? window : this, function () {
  var __onfireEvents = {},
   __cnt = 0, // evnet counter
   string_str = 'string',
   function_str = 'function',
   hasOwnKey = Function.call.bind(Object.hasOwnProperty),
   slice = Function.call.bind(Array.prototype.slice);

  function _bind(eventName, callback, is_one, context) {
    if (typeof eventName !== string_str || typeof callback !== function_str) {
      throw new Error('args: '+string_str+', '+function_str+'');
    }
    if (! hasOwnKey(__onfireEvents, eventName)) {
      __onfireEvents[eventName] = {};
    }
    __onfireEvents[eventName][++__cnt] = [callback, is_one, context];

    return [eventName, __cnt];
  }
  function _each(obj, callback) {
    for (var key in obj) {
      if (hasOwnKey(obj, key)) callback(key, obj[key]);
    }
  }
  /**
   *  onfire.on( event, func, context ) -> Object
   *  - event (String): The event name to subscribe / bind to
   *  - func (Function): The function to call when a new event is published / triggered
   *  Bind / subscribe the event name, and the callback function when event is triggered, will return an event Object
  **/
  function on(eventName, callback, context) {
    return _bind(eventName, callback, 0, context);
  }
  /**
   *  onfire.one( event, func, context ) -> Object
   *  - event (String): The event name to subscribe / bind to
   *  - func (Function): The function to call when a new event is published / triggered
   *  Bind / subscribe the event name, and the callback function when event is triggered only once(can be triggered for one time), will return an event Object
  **/
  function one(eventName, callback, context) {
    return _bind(eventName, callback, 1, context);
  }
  function _fire_func(eventName, args) {
    if (hasOwnKey(__onfireEvents, eventName)) {
      _each(__onfireEvents[eventName], function(key, item) {
        item[0].apply(item[2], args); // do the function
        if (item[1]) delete __onfireEvents[eventName][key]; // when is one, delete it after triggle
      });
    }
  }
  /**
   *  onfire.fire( event[, data1 [,data2] ... ] )
   *  - event (String): The event name to publish
   *  - data...: The data to pass to subscribers / callbacks
   *  Async Publishes / fires the the event, passing the data to it's subscribers / callbacks
  **/
  function fire(eventName) {
    // fire events
    var args = slice(arguments, 1);
    setTimeout(function () {
      _fire_func(eventName, args);
    });
  }
  /**
   *  onfire.fireSync( event[, data1 [,data2] ... ] )
   *  - event (String): The event name to publish
   *  - data...: The data to pass to subscribers / callbacks
   *  Sync Publishes / fires the the event, passing the data to it's subscribers / callbacks
  **/
  function fireSync(eventName) {
    _fire_func(eventName, slice(arguments, 1));
  }
  /**
   * onfire.un( event ) -> Boolean
   *  - event (String / Object): The message to publish
   * When passed a event Object, removes a specific subscription.
   * When passed event name String, removes all subscriptions for that event name(hierarchy)
  *
   * Unsubscribe / unbind an event or event object.
   *
   * Examples
   *
   *  // Example 1 - unsubscribing with a event object
   *  var event_object = onfire.on('my_event', myFunc);
   *  onfire.un(event_object);
   *
   *  // Example 2 - unsubscribing with a event name string
   *  onfire.un('my_event');
  **/
  function un(event) {
    var eventName, key, r = false, type = typeof event;
    if (type === string_str) {
      // cancel the event name if exist
      if (hasOwnKey(__onfireEvents, event)) {
        delete __onfireEvents[event];
        return true;
      }
      return false;
    }
    else if (type === 'object') {
      eventName = event[0];
      key = event[1];
      if (hasOwnKey(__onfireEvents, eventName) && hasOwnKey(__onfireEvents[eventName], key)) {
        delete __onfireEvents[eventName][key];
        return true;
      }
      // can not find this event, return false
      return false;
    }
    else if (type === function_str) {
      _each(__onfireEvents, function(key_1, item_1) {
        _each(item_1, function(key_2, item_2) {
          if (item_2[0] === event) {
            delete __onfireEvents[key_1][key_2];
            r = true;
          }
        });
      });
      return r;
    }
    return true;
  }
  /**
   *  onfire.clear()
   *  Clears all subscriptions
  **/
  function clear() {
    __onfireEvents = {};
  }
  return {
    on: on,
    one: one,
    un: un,
    fire: fire,
    fireSync: fireSync,
    clear: clear
  };
});
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其中小程序的后台数据库用的是微信小程序云开发，参考的是哔哩哔哩上的编程小石头的视频
讲的非常好，自己是一点基础都没有就学会了，
stm32f407连接阿里云这部分的工程是自己在网上找的103的例程修改的，有需要的私聊我，转载说明出处。
邮箱：2549368652@qq.com