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12	12	== 1.1  What is LA66 LoRaWAN Module ==
13	13
14	14
15		-
16	16	(((
17	17	(((
18	18	[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
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51	51
52	52
53	53
54		-
55	55	== 1.2  Features ==
56	56
57	57	* Support LoRaWAN v1.0.4 protocol
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64	64	* Firmware upgradable via UART interface
65	65	* Ultra-long RF range
66	66
67		-
68		-
69	69	== 1.3  Specification ==
70	70
71	71	* CPU: 32-bit 48 MHz
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86	86	* LoRa Rx current: <9 mA
87	87	* I/O Voltage: 3.3v
88	88
89		-
90		-
91	91	== 1.4  AT Command ==
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93	93
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121	121	== 2.1  Overview ==
122	122
123	123
124		-
125	125	(((
126	126	[[image:image-20220715000826-2.png||height="145" width="220"]]
127	127	)))
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131	131	)))
132	132
133	133	(((
134		-LA66 LoRaWAN Shield is the Arduino shield base on LA66. Users can use LA66 LoRaWAN Shield to rapidly add LoRaWAN or peer-to-peer LoRa wireless function to  Arduino projects.
	127	+(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%) is the Arduino shield base on LA66. Users can use LA66 LoRaWAN Shield to rapidly add LoRaWAN or peer-to-peer LoRa wireless function to  Arduino projects.
135	135	)))
136	136
137	137	(((
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160	160
161	161
162	162
163		-
164	164	== 2.2  Features ==
165	165
166	166	* Arduino Shield base on LA66 LoRaWAN module
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174	174	* Firmware upgradable via UART interface
175	175	* Ultra-long RF range
176	176
177		-
178		-
179		-
180	180	== 2.3  Specification ==
181	181
182	182	* CPU: 32-bit 48 MHz
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197	197	* LoRa Rx current: <9 mA
198	198	* I/O Voltage: 3.3v
199	199
200		-
201		-
202		-
203	203	== 2.4  Pin Mapping & LED ==
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205	205
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334	334
335	335	== 3.1  Overview ==
336	336
	323	+
337	337	[[image:image-20220715001142-3.png||height="145" width="220"]]
338	338
	326	+
	327	+(((
339	339	(% style="color:blue" %)**LA66 USB LoRaWAN Adapter**(%%) is designed to fast turn USB devices to support LoRaWAN wireless features. It combines a CP2101 USB TTL Chip and LA66 LoRaWAN module which can easy to add LoRaWAN wireless feature to PC / Mobile phone or an embedded device that has USB Interface.
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340	340
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341	341	(% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.4 protocol**(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely. This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
	333	+)))
342	342
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343	343	Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
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344	344
	339	+(((
345	345	Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)**open-source peer-to-peer LoRa Protocol**(%%) for the none-LoRaWAN application.
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346	346
	343	+(((
347	347	LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
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348	348
349	349
	348	+
350	350	== 3.2  Features ==
351	351
352	352	* LoRaWAN USB adapter base on LA66 LoRaWAN module
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390	390	== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
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392	392
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393	393	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
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394	394
395	395
396	396	(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
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536	536	* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
537	537	* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
538	538
	540	+
	541	+
539	539	= 5.  Reference =
540	540
541	541	* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]