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118	118
119	119	=== Upgrade steps ===
120	120
	121	+==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
121	121
	123	+[[image:image-20220602102824-5.png]]
	124	+
	125	+==== Press the RST switch on the LA66 LoRaWAN Shield once ====
	126	+
	127	+[[image:image-20220602104701-12.png]]
	128	+
	129	+==== Open the upgrade application software ====
	130	+
	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/]]
	132	+
	133	+[[image:image-20220602103227-6.png]]
	134	+
	135	+[[image:image-20220602103357-7.png]]
	136	+
	137	+===== Select the COM port corresponding to USB TTL =====
	138	+
	139	+[[image:image-20220602103844-8.png]]
	140	+
	141	+===== Select the bin file to burn =====
	142	+
	143	+[[image:image-20220602104144-9.png]]
	144	+
	145	+[[image:image-20220602104251-10.png]]
	146	+
	147	+[[image:image-20220602104402-11.png]]
	148	+
	149	+===== Click to start the download =====
	150	+
	151	+[[image:image-20220602104923-13.png]]
	152	+
	153	+===== The following figure appears to prove that the burning is in progress =====
	154	+
	155	+[[image:image-20220602104948-14.png]]
	156	+
	157	+===== The following picture appears to prove that the burning is successful =====
	158	+
	159	+[[image:image-20220602105251-15.png]]
	160	+
122	122	= LA66 USB LoRaWAN Adapter =
123	123
124	124	LA66 USB LoRaWAN Adapter is the USB Adapter for LA66, it combines a USB TTL Chip and LA66 module which can easy to test the LoRaWAN feature by using PC or embedded device which has USB Interface.
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135	135
136	136	=== Use AT Command to send an uplink message. ===
137	137
138		-=== Send CPU/RAM usage to TTN via a script. ===
	177	+=== Send PC's CPU/RAM usage to TTN via script. ===
139	139
	179	+==== Take python as an example： ====
140	140
	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	+
141	141	== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
142	142
143	143

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