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64 lines
1.4 KiB
64 lines
1.4 KiB
# 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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Use MQTT in LoRa communication.. |
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[简体中文](./zh.md) |
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## Usage - with Callback Functions |
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```C++ |
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#define LORA_SOCKET_IP "1.0.0.1" //need to be unique |
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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(); //initalization |
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mqtt.onReceived(doIfRec); //register callback functions which will be executed when received message |
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mqtt.subscribe("Subject"); //subscribe MQTT subject |
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} |
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void doIfRec(String subject, String content){ |
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//When received message this function will be executed. |
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mqtt.publish("Subject", "Content"); //publish a mqtt message |
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} |
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void loop(){ |
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//No delay() could be used in loop() |
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mqtt.core(); //Mqtt service core |
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} |
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``` |
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## Usage - with If in loop() |
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```C++ |
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#define LORA_SOCKET_IP "1.0.0.1" //need to be unique |
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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(); //initalization |
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mqtt.subscribe("Subject"); //subscribe MQTT subject |
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} |
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void loop(){ |
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//When received message this function will be executed. |
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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(); //Mqtt service core |
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} |
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``` |
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