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3		-**Table of Contents:**
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5	5	{{toc/}}
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12	12	== 1.1  What is LA66 LoRaWAN Module ==
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16	16	(% style="color:blue" %)**Dragino LA66**(%%) is a small wireless LoRaWAN module that offers a very compelling mix of long-range, low power consumption, and secure data transmission. It is designed to facilitate developers to quickly deploy industrial-level LoRaWAN and IoT solutions. It helps users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to create and connect your things everywhere.
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20	20	(% 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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24	24	Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
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28	28	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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32	32	LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
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35	35
36	36	== 1.2  Features ==
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163	163	1. Arduino
164	164	1. USB TO TTL Adapter
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166		-
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169	169	[[image:image-20220602100052-2.png||height="385" width="600"]]
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175	175	[[image:image-20220602101311-3.png||height="276" width="600"]]
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179	179	(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
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183	183	(% style="background-color:yellow" %)**GND  <-> GND
184	184	TXD  <->  TXD
185	185	RXD  <->  RXD**
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189	189	Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
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203	203	[[image:image-20220602102824-5.png||height="306" width="600"]]
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206		-
207	207	==== 2.  Press the RST switch once ====
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210	210	[[image:image-20220602104701-12.png||height="285" width="600"]]
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214	214	==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
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218	218	(% style="color:blue" %)**1. Software download link:  [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/>>https://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/]]**
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222	222	[[image:image-20220602103227-6.png]]
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254	254	[[image:image-20220602104923-13.png]]
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258	258	(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
259	259	(% style="color:blue" %)**5. Check update process**
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291	291	* AT Command via UART-TTL interface
292	292	* Firmware upgradable via UART interface
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294		-
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296	296	== 3.3  Specification ==
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298	298	* CPU: 32-bit 48 MHz
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311	311	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
312	312	* LoRa Rx current: <9 mA
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316	316	== 3.4  Pin Mapping & LED ==
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416		-(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
	387	+(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**(%%)
	388	+(% style="color:blue" %)The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network
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418		-The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
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420		-
421	421	[[image:image-20220602154928-5.png||height="436" width="500"]]
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471	471	= 5.  Reference =
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473	473	* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]