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129	129	==== Open the upgrade application software ====
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131		-Software download link：[[click here>>attach:TremoProgrammer_v0.8.rar]]
	131	+Software download link:  [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/>>https://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/]]
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133	133	[[image:image-20220602103227-6.png]]
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175	175	=== Use AT Command to send an uplink message. ===
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177		-=== Send CPU/RAM usage to TTN via a script. ===
	177	+=== Send PC's CPU/RAM usage to TTN via script. ===
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	179	+==== Take python as an example： ====
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	181	+===== Preconditions: =====
	182	+
	183	+1.LA66 LoRa Shield works fine
	184	+
	185	+2.LA66 LoRa Shield is registered with TTN
	186	+
	187	+===== Steps for usage =====
	188	+
	189	+1.After connecting the line, connect it to the PC, turn SW1 to FLASH, and press the RST switch. As shown in the figure below
	190	+
	191	+[[image:image-20220602114148-1.png]]
	192	+
	193	+2.Run the script and see the TTN
	194	+
	195	+[[image:image-20220602115852-3.png]]
	196	+
	197	+
	198	+
180	180	== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
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