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62	62	* Firmware upgradable via UART interface
63	63	* Ultra-long RF range
64	64
	65	+
65	65	== 1.3  Specification ==
66	66
67	67	* CPU: 32-bit 48 MHz
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82	82	* LoRa Rx current: <9 mA
83	83	* I/O Voltage: 3.3v
84	84
	86	+
85	85	== 1.4  AT Command ==
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87	87
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166	166	* Firmware upgradable via UART interface
167	167	* Ultra-long RF range
168	168
	171	+
169	169	== 2.3  Specification ==
170	170
171	171	* CPU: 32-bit 48 MHz
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186	186	* LoRa Rx current: <9 mA
187	187	* I/O Voltage: 3.3v
188	188
	192	+
189	189	== 2.4  Pin Mapping & LED ==
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191	191
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211	211	1. Arduino
212	212	1. USB TO TTL Adapter
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	218	+
214	214	[[image:image-20220602100052-2.png||height="385" width="600"]]
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324	324	[[image:image-20220715001142-3.png||height="145" width="220"]]
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326	326
327		-(((
328	328	(% 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.
329		-)))
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331		-(((
332	332	(% 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		-)))
334	334
335		-(((
336	336	Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
337		-)))
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339		-(((
340	340	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.
341		-)))
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343		-(((
344	344	LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
345		-)))
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361	361	* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
362	362
363	363
364		-
365	365	== 3.3  Specification ==
366	366
367	367	* CPU: 32-bit 48 MHz
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381	381	* LoRa Rx current: <9 mA
382	382
383	383
384		-
385	385	== 3.4  Pin Mapping & LED ==
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387	387
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389	389	== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
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391	391
392		-(((
393	393	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
394		-)))
395	395
396	396
397	397	(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
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538	538	* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
539	539
540	540
541		-
542	542	= 5.  Reference =
543	543
544	544	* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]