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63	63	* Ultra-long RF range
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66		-
67	67	== 1.3  Specification ==
68	68
69	69	* CPU: 32-bit 48 MHz
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85	85	* I/O Voltage: 3.3v
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87	87
88		-
89	89	== 1.4  AT Command ==
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	100	+
102	102	== 1.6  Pin Mapping ==
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170	170	* Ultra-long RF range
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172	172
173		-
174	174	== 2.3  Specification ==
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176	176	* CPU: 32-bit 48 MHz
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192	192	* I/O Voltage: 3.3v
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194	194
195		-
196	196	== 2.4  Pin Mapping & LED ==
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218	218	1. Arduino
219	219	1. USB TO TTL Adapter
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	218	+
221	221	[[image:image-20220602100052-2.png||height="385" width="600"]]
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331	331	[[image:image-20220715001142-3.png||height="145" width="220"]]
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334		-(((
335	335	(% 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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339	339	(% 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.
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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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347	347	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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351	351	LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
352		-)))
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368	368	* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
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371		-
372	372	== 3.3  Specification ==
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374	374	* CPU: 32-bit 48 MHz
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388	388	* LoRa Rx current: <9 mA
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391		-
392	392	== 3.4  Pin Mapping & LED ==
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396	396	== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
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399		-(((
400	400	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
401		-)))
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404	404	(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**