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65	65	* Firmware upgradable via UART interface
66	66	* Ultra-long RF range
67	67
68		-
69	69	== 1.3  Specification ==
70	70
71	71
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87	87	* LoRa Rx current: <9 mA
88	88	* I/O Voltage: 3.3v
89	89
90		-
91	91	== 1.4  Pin Mapping & LED ==
92	92
93	93
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158	158
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160	160
161		-(% style="color:blue" %)**2.  Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets**
	159	+(% style="color:blue" %)**2.  Same steps as 1.5,after opening the serial port monitoring, it will automatically connect to the network and send packets**
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163	163
164	164	[[image:image-20220723172938-9.png||height="652" width="1050"]]
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196	196
197	197	[[image:image-20220723175700-12.png||height="602" width="995"]]
198	198
	197	+== 1.8 Example: How to join helium ==
199	199
200	200
201		-== 1.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
	200	+(% style="color:blue" %)**1. Create a new device.**
202	202
	202	+[[image:image-20220907165500-1.png||height="464" width="940"]]
203	203
204		-=== 1.8.1  Items needed for update ===
205	205
	205	+(% style="color:blue" %)**2. Save the device after filling in the necessary information.**
206	206
	207	+[[image:image-20220907165837-2.png||height="375" width="809"]]
	208	+
	209	+
	210	+(% style="color:blue" %)**3.  Use AT commands.**
	211	+
	212	+[[image:image-20220602100052-2.png||height="385" width="600"]]
	213	+
	214	+
	215	+(% style="color:#0000ff" %)**4.Use command AT+CFG to get device configuration**
	216	+
	217	+[[image:image-20220907170308-3.png||height="556" width="617"]]
	218	+
	219	+
	220	+(% style="color:blue" %)**5.  Network successfully.**
	221	+
	222	+[[image:image-20220907170436-4.png]]
	223	+
	224	+
	225	+(% style="color:blue" %)**6.  Send uplink using command**
	226	+
	227	+[[image:image-20220907170659-5.png]]
	228	+
	229	+[[image:image-20220907170744-6.png||height="242" width="798"]]
	230	+
	231	+
	232	+== 1.9  Upgrade Firmware of LA66 LoRaWAN Shield ==
	233	+
	234	+
	235	+=== 1.9.1  Items needed for update ===
	236	+
	237	+
207	207	1. LA66 LoRaWAN Shield
208	208	1. Arduino
209	209	1. USB TO TTL Adapter
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212	212
213	213
214	214
215		-=== 1.8.2  Connection ===
	246	+=== 1.9.2  Connection ===
216	216
217	217
218	218	[[image:image-20220602101311-3.png||height="276" width="600"]]
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240	240
241		-=== 1.8.3  Upgrade steps ===
	272	+=== 1.9.3  Upgrade steps ===
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347	347	* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
348	348
349	349
350		-
351	351	= 4.  Reference =
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353	353