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62	62	* Firmware upgradable via UART interface
63	63	* Ultra-long RF range
64	64
65		-
66	66	== 1.3  Specification ==
67	67
68	68	* CPU: 32-bit 48 MHz
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83	83	* LoRa Rx current: <9 mA
84	84	* I/O Voltage: 3.3v
85	85
86		-
87	87	== 1.4  AT Command ==
88	88
89	89
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168	168	* Firmware upgradable via UART interface
169	169	* Ultra-long RF range
170	170
171		-
172	172	== 2.3  Specification ==
173	173
174	174	* CPU: 32-bit 48 MHz
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189	189	* LoRa Rx current: <9 mA
190	190	* I/O Voltage: 3.3v
191	191
192		-
193	193	== 2.4  Pin Mapping & LED ==
194	194
195	195
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215	215	1. Arduino
216	216	1. USB TO TTL Adapter
217	217
218		-
219	219	[[image:image-20220602100052-2.png||height="385" width="600"]]
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329	329	[[image:image-20220715001142-3.png||height="145" width="220"]]
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	327	+(((
332	332	(% 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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334	334	(% 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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336	336	Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
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338	338	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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340	340	LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
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356	356	* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
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	364	+
359	359	== 3.3  Specification ==
360	360
361	361	* CPU: 32-bit 48 MHz
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375	375	* LoRa Rx current: <9 mA
376	376
377	377
	384	+
378	378	== 3.4  Pin Mapping & LED ==
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380	380
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382	382	== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
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	392	+(((
385	385	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
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386	386
387	387
388	388	(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
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529	529	* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
530	530
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	541	+
532	532	= 5.  Reference =
533	533
534	534	* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]