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	3	+**Table of Contents:**
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3	3	{{toc/}}
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10	10	== 1.1  What is LA66 LoRaWAN Module ==
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13	13	(% 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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15	15	(% 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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17	17	Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
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19	19	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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21	21	LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
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24	24	== 1.2  Features ==
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34	34	* Ultra-long RF range
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37	37	== 1.3  Specification ==
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39	39	* CPU: 32-bit 48 MHz
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55	55	* I/O Voltage: 3.3v
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58	58	== 1.4  AT Command ==
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60	60	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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101	101	* Ultra-long RF range
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104	104	== 2.3  Specification ==
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106	106	* CPU: 32-bit 48 MHz
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122	122	* I/O Voltage: 3.3v
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125	125	== 2.4  Pin Mapping & LED ==
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147	147	1. Arduino
148	148	1. USB TO TTL Adapter
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150	150	[[image:image-20220602100052-2.png||height="385" width="600"]]
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156	156	[[image:image-20220602101311-3.png||height="276" width="600"]]
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159	159	(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
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161	161	(% style="background-color:yellow" %)**GND  <-> GND
162	162	TXD  <->  TXD
163	163	RXD  <->  RXD**
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166	166	Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
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267	267	* Firmware upgradable via UART interface
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270	270	== 3.3  Specification ==
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272	272	* CPU: 32-bit 48 MHz
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286	286	* LoRa Rx current: <9 mA
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289	289	== 3.4  Pin Mapping & LED ==
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