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23	23	* MS14 series if installed with the same firmware. (in this case, the MQTT forward will work , but no LoRa support)
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	26	+
26	26	= 2.  Firmware Change Log for MQTT feature =
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34	34	** Initiate version
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37	37	= 3.  MQTT forward operating principle =
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45	45	* **For Uplink:**  The sensor sends data to LoRa Gateway via LoRa wireless, The gateway will process these data and forward to remote MQTT Broker via Internet.
46	46	* **For Downlink:** The gateway subscribe a topic in the MQTT broker, when there is update on the topic, the gateway will know and broadcast the data to Local LoRa network.
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48	48	[[image:image-20220527133547-1.png]]
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50	50	General MQTT structure
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121	121	* HOSTNAME: Device Hostname
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124	124	=== 3.3.2  -m message macro ===
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131	131	* JSON: Convert META to json format.
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134	134	=== 3.3.3  Example for Macro ===
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599	599
600	600	(% class="box infomessage" %)
601	601	(((
602		-**mosquitto_pub -h 10.130.2.192 -p 1883 -t dragino-1d25dc/ -m "260211D,time,txt,hello,20,1,SF12,923300000,2"**
	607	+**mosquitto_pub -h 10.130.2.192 -p 1883 -t dragino-1d25dc/ -m "260211D,time,txt,hello,20,1,SF12,923300000,2 > /var/iot/push/test"**
603	603	)))
604	604
605	605	Or use [[MQTT.fx>>https://mqttfx.jensd.de/index.php/download]]