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Last modified by Xiaoling on 2023/09/19 09:20
From version 149.1
edited by Edwin Chen
on 2022/10/21 11:04
Change comment: There is no comment for this version
To version 65.1
edited by Edwin Chen
on 2022/07/02 23:30
Change comment: There is no comment for this version

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1 -LA66 LoRaWAN Module User Manual
1 +LA66 LoRaWAN Module
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1 -
1 +{{box cssClass="floatinginfobox" title="**Contents**"}}
2 +{{toc/}}
3 +{{/box}}
2 2  
3 -**Table of Contents:**
5 += LA66 LoRaWAN Module =
4 4  
5 -{{toc/}}
7 +== What is LA66 LoRaWAN Module ==
6 6  
9 +(% 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.
7 7  
11 +(% 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.
8 8  
9 -= 1.  LA66 LoRaWAN Module =
13 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
10 10  
15 +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.
11 11  
12 -== 1.1  What is LA66 LoRaWAN Module ==
17 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
13 13  
19 +== Features ==
14 14  
15 -(((
16 -(((
17 -[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
18 -)))
19 19  
20 -(((
21 -
22 -)))
22 +== Specification ==
23 23  
24 -(((
25 -(% 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.
26 -)))
27 -)))
24 +[[image:image-20220517072526-1.png]]
28 28  
29 -(((
30 -(((
31 -(% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.3 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.
32 -)))
33 -)))
26 +Input Power Range: 1.8v ~~ 3.7v
34 34  
35 -(((
36 -(((
37 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
38 -)))
28 +Power Consumption: < 4uA.
39 39  
40 -(((
41 -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.
42 -)))
43 -)))
30 +Frequency Range: 150 MHz ~~ 960 MHz
44 44  
45 -(((
46 -(((
47 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
48 -)))
49 -)))
32 +Maximum Power +22 dBm constant RF output
50 50  
34 +High sensitivity: -148 dBm
51 51  
36 +Temperature:
52 52  
53 -== 1.2  Features ==
38 +* Storage: -55 ~~ +125℃
39 +* Operating: -40 ~~ +85℃
54 54  
41 +Humidity:
55 55  
56 -* Support LoRaWAN v1.0.3 protocol
57 -* Support peer-to-peer protocol
58 -* TCXO crystal to ensure RF performance on low temperature
59 -* SMD Antenna pad and i-pex antenna connector
60 -* Available in different frequency LoRaWAN frequency bands.
61 -* World-wide unique OTAA keys.
62 -* AT Command via UART-TTL interface
63 -* Firmware upgradable via UART interface
64 -* Ultra-long RF range
43 +* Storage: 5 ~~ 95% (Non-Condensing)
44 +* Operating: 10 ~~ 95% (Non-Condensing)
65 65  
46 +LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
66 66  
67 -== 1.3  Specification ==
48 +LoRa Rx current: <9 mA
68 68  
50 +I/O Voltage: 3.3v
69 69  
70 -* CPU: 32-bit 48 MHz
71 -* Flash: 256KB
72 -* RAM: 64KB
73 -* Input Power Range: 1.8v ~~ 3.7v
74 -* Power Consumption: < 4uA.
75 -* Frequency Range: 150 MHz ~~ 960 MHz
76 -* Maximum Power +22 dBm constant RF output
77 -* High sensitivity: -148 dBm
78 -* Temperature:
79 -** Storage: -55 ~~ +125℃
80 -** Operating: -40 ~~ +85℃
81 -* Humidity:
82 -** Storage: 5 ~~ 95% (Non-Condensing)
83 -** Operating: 10 ~~ 95% (Non-Condensing)
84 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
85 -* LoRa Rx current: <9 mA
86 -* I/O Voltage: 3.3v
87 87  
53 +== AT Command ==
88 88  
89 -== 1.4  AT Command ==
55 +AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
90 90  
91 91  
92 -AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in[[ AT Command documents>>https://www.dropbox.com/sh/wtq43za8sykpgta/AABAEE02uEAsRU-JV7bzEhMba?dl=0]].
58 +== Pin Mapping ==
93 93  
60 +[[image:image-20220523101537-1.png]]
94 94  
62 +== Land Pattern ==
95 95  
96 -== 1.5  Dimension ==
64 +[[image:image-20220517072821-2.png]]
97 97  
98 98  
99 -[[image:image-20220718094750-3.png]]
67 +== Part Number ==
100 100  
69 +Part Number: **LA66-XXX**
101 101  
71 +**XX**: The default frequency band
102 102  
103 -== 1.6  Pin Mapping ==
73 +* **AS923**: LoRaWAN AS923 band
74 +* **AU915**: LoRaWAN AU915 band
75 +* **EU433**: LoRaWAN EU433 band
76 +* **EU868**: LoRaWAN EU868 band
77 +* **KR920**: LoRaWAN KR920 band
78 +* **US915**: LoRaWAN US915 band
79 +* **IN865**: LoRaWAN IN865 band
80 +* **CN470**: LoRaWAN CN470 band
104 104  
105 -[[image:image-20220720111850-1.png]]
82 += LA66 LoRaWAN Shield =
106 106  
84 +LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
107 107  
86 +== Pin Mapping & LED ==
108 108  
109 -== 1.7  Land Pattern ==
88 +== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
110 110  
90 +== Example: Join TTN network and send an uplink message, get downlink message. ==
111 111  
112 -[[image:image-20220517072821-2.png]]
92 +== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
113 113  
94 +== Upgrade Firmware of LA66 LoRaWAN Shield ==
114 114  
96 +=== what needs to be used ===
115 115  
116 -= 2.  FAQ =
98 +1.LA66 LoRaWAN Shield that needs to be upgraded
117 117  
100 +2.Arduino
118 118  
119 -(% class="wikigeneratedid" %)
120 -== 2.1 Where to find examples of how to use LA66? ==
102 +3.USB TO TTL
121 121  
122 -(% class="wikigeneratedid" %)
123 -Below products are made by LA66. User can use their examples as reference:
104 +[[image:image-20220602100052-2.png]]
124 124  
125 -* LA66 Shield for Arduino
126 -* LA66 USB Adapter
106 +=== Wiring Schematic ===
127 127  
108 +[[image:image-20220602101311-3.png]]
128 128  
110 +LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
129 129  
130 -== 2.2  How to Compile Source Code for LA66? ==
112 +GND  >>>>>>>>>>>>GND
131 131  
114 +TXD  >>>>>>>>>>>>TXD
132 132  
133 -Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
116 +RXD  >>>>>>>>>>>>RXD
134 134  
118 +JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
135 135  
120 +Connect to the PC after connecting the wires
136 136  
137 -== 2.3 Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
122 +[[image:image-20220602102240-4.png]]
138 138  
124 +=== Upgrade steps ===
139 139  
140 -Yes, this is possible, user can refer[[ the source code from ASR >>https://github.com/asrlora/asr_lora_6601/tree/master/projects/ASR6601SE-EVAL/examples/lora]]to get examples for how to its I/O Interfaces.
126 +==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
141 141  
128 +[[image:image-20220602102824-5.png]]
142 142  
130 +==== Press the RST switch on the LA66 LoRaWAN Shield once ====
143 143  
144 -== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
132 +[[image:image-20220602104701-12.png]]
145 145  
134 +==== Open the upgrade application software ====
146 146  
147 -Instruction for LA66 Peer to Peer firmware :[[ Instruction >>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.Instruction for LA66 Peer to Peer firmware.WebHome]]
136 +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/]]
148 148  
138 +[[image:image-20220602103227-6.png]]
149 149  
140 +[[image:image-20220602103357-7.png]]
150 150  
151 -= 3.  Order Info =
142 +===== Select the COM port corresponding to USB TTL =====
152 152  
144 +[[image:image-20220602103844-8.png]]
153 153  
154 -**Part Number:**  (% style="color:blue" %)**LA66-XXX**
146 +===== Select the bin file to burn =====
155 155  
148 +[[image:image-20220602104144-9.png]]
156 156  
157 -(% style="color:blue" %)**XXX**(%%): The default frequency band
150 +[[image:image-20220602104251-10.png]]
158 158  
159 -* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
160 -* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
161 -* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
162 -* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
163 -* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
164 -* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
165 -* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
166 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
167 -* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
152 +[[image:image-20220602104402-11.png]]
168 168  
154 +===== Click to start the download =====
169 169  
156 +[[image:image-20220602104923-13.png]]
170 170  
171 -= 4.  FCC Statement =
158 +===== The following figure appears to prove that the burning is in progress =====
172 172  
160 +[[image:image-20220602104948-14.png]]
173 173  
174 -(% style="color:red" %)**FCC Caution:**
162 +===== The following picture appears to prove that the burning is successful =====
175 175  
176 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
164 +[[image:image-20220602105251-15.png]]
177 177  
178 -This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
166 += LA66 USB LoRaWAN Adapter =
179 179  
168 +LA66 USB LoRaWAN Adapter is the USB Adapter for LA66, it combines a USB TTL Chip and LA66 module which can easy to test the LoRaWAN feature by using PC or embedded device which has USB Interface.
180 180  
181 -(% style="color:red" %)**IMPORTANT NOTE: **
170 +Before use, please make sure that the computer has installed the CP2102 driver
182 182  
183 -(% style="color:red" %)**Note:**(%%) This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
172 +== Pin Mapping & LED ==
184 184  
185 -—Reorient or relocate the receiving antenna.
174 +== Example Send & Get Messages via LoRaWAN in PC ==
186 186  
187 -—Increase the separation between the equipment and receiver.
176 +Connect the LA66 LoRa Shield to the PC
188 188  
189 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
178 +[[image:image-20220602171217-1.png||height="615" width="915"]]
190 190  
191 -—Consult the dealer or an experienced radio/TV technician for help.
180 +Open the serial port tool
192 192  
182 +[[image:image-20220602161617-8.png]]
193 193  
194 -(% style="color:red" %)**FCC Radiation Exposure Statement: **
184 +[[image:image-20220602161718-9.png||height="529" width="927"]]
195 195  
196 -This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
186 +Press the reset switch RST on the LA66 LoRa Shield.
187 +
188 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
189 +
190 +[[image:image-20220602161935-10.png]]
191 +
192 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
193 +
194 +example: AT+SENDB=01,02,8,05820802581ea0a5
195 +
196 +[[image:image-20220602162157-11.png]]
197 +
198 +Check to see if TTN received the message
199 +
200 +[[image:image-20220602162331-12.png||height="547" width="1044"]]
201 +
202 +== Example Send & Get Messages via LoRaWAN in RPi ==
203 +
204 +Connect the LA66 LoRa Shield to the RPI
205 +
206 +[[image:image-20220602171233-2.png||height="592" width="881"]]
207 +
208 +Log in to the RPI's terminal and connect to the serial port
209 +
210 +[[image:image-20220602153146-3.png]]
211 +
212 +Press the reset switch RST on the LA66 LoRa Shield.
213 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
214 +
215 +[[image:image-20220602154928-5.png]]
216 +
217 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
218 +
219 +example: AT+SENDB=01,02,8,05820802581ea0a5
220 +
221 +[[image:image-20220602160339-6.png]]
222 +
223 +Check to see if TTN received the message
224 +
225 +[[image:image-20220602160627-7.png||height="468" width="1013"]]
226 +
227 +=== Install Minicom ===
228 +
229 +Enter the following command in the RPI terminal
230 +
231 +apt update
232 +
233 +[[image:image-20220602143155-1.png]]
234 +
235 +apt install minicom
236 +
237 +[[image:image-20220602143744-2.png]]
238 +
239 +=== Send PC's CPU/RAM usage to TTN via script. ===
240 +
241 +==== Take python as an example： ====
242 +
243 +===== Preconditions: =====
244 +
245 +1.LA66 USB LoRaWAN Adapter works fine
246 +
247 +2.LA66 USB LoRaWAN Adapter  is registered with TTN
248 +
249 +===== Steps for usage =====
250 +
251 +1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
252 +
253 +2.Run the script and see the TTN
254 +
255 +[[image:image-20220602115852-3.png]]
256 +
257 +
258 +
259 +== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
260 +
261 +
262 +== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
263 +
264 +
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