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65 lines
1.4 KiB
65 lines
1.4 KiB
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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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