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# LoRa-mqtt
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[![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2FIoTcat%2FLoRa-mqtt.svg?type=shield)](https://app.fossa.com/projects/git%2Bgithub.com%2FIoTcat%2FLoRa-mqtt?ref=badge_shield)
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![size](https://badge-size.herokuapp.com/iotcat/LoRa-mqtt/master/lora-mqtt.h)
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在LoRa通信中使用MQTT协议..
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[English Version](./README.md)
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## 使用案例 - 使用回调函数
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```C++
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#define LORA_SOCKET_IP "1.0.0.1" //需唯一
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#include "lora-mqtt.h"
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LoRaMQTT mqtt;
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void setup(){
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mqtt.ini(); //初始化
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mqtt.onReceived(doIfRec); //注册回调函数,当接收到新消息时触发
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mqtt.subscribe("主题名称"); //订阅mqtt主题
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}
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void doIfRec(String subject, String content){
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//当收到新消息时执行这个函数中的内容
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mqtt.publish("主题", "内容"); //发布mqtt消息
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}
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void loop(){
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//注意loop()全局不得有delay,否则会导致接收不稳定
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mqtt.core(); //循环组件
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}
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```
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## 使用案例 - 使用条件触发
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```C++
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#define LORA_SOCKET_IP "1.0.0.1" //需唯一
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#include "lora-mqtt.h"
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LoRaMQTT mqtt;
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void setup(){
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mqtt.ini(); //初始化
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mqtt.subscribe("主题名称"); //订阅mqtt主题
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}
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void loop(){
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//注意loop()全局不得有delay,否则会导致接收不稳定
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if(mqtt.isNewMsg()){
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String subject, content;
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mqtt.getNewMsg(subject, content);
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Serial.println(subject, content);
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}
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mqtt.core(); //循环组件
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}
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```
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