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47	47	* Firmware upgradable via UART interface
48	48	* Ultra-long RF range
49	49
50		-
51	51	== 1.3  Specification ==
52	52
53	53	* CPU: 32-bit 48 MHz
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68	68	* LoRa Rx current: <9 mA
69	69	* I/O Voltage: 3.3v
70	70
71		-
72	72	== 1.4  AT Command ==
73	73
74	74	AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
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134	134	* Firmware upgradable via UART interface
135	135	* Ultra-long RF range
136	136
137		-
138	138	== 2.3  Specification ==
139	139
140	140	* CPU: 32-bit 48 MHz
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155	155	* LoRa Rx current: <9 mA
156	156	* I/O Voltage: 3.3v
157	157
158		-
159	159	== 2.4  Pin Mapping & LED ==
160	160
161	161
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182	182	1. USB TO TTL Adapter
183	183
184	184
185		-
186	186	[[image:image-20220602100052-2.png||height="385" width="600"]]
187	187
188	188
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292	292
293	293	== 3.1  Overview ==
294	294
295		-(% 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.
	290	+(% 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.
296	296
297		-(((
298	298	(% 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.
299		-)))
300	300
301		-(((
302	302	Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
303		-)))
304	304
305		-(((
306	306	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.
307		-)))
308	308
309		-(((
310	310	LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
311		-)))
312	312
313	313
314	314	== 3.2  Features ==
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324	324	* AT Command via UART-TTL interface
325	325	* Firmware upgradable via UART interface
326	326
327		-
328	328	== 3.3  Specification ==
329	329
330	330	* CPU: 32-bit 48 MHz
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343	343	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
344	344	* LoRa Rx current: <9 mA
345	345
346		-
347	347	== 3.4  Pin Mapping & LED ==
348	348
349	349
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497	497	* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
498	498	* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
499	499
500		-
501	501	= 5.  Reference =
502	502
503	503	* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]