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Last modified by Xiaoling on 2023/09/19 09:20
From version 149.2
edited by Xiaoling
on 2022/10/21 11:10
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 -XWiki.Xiaoling
1 +XWiki.Edwin
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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  
48 +LoRa Rx current: <9 mA
67 67  
68 -== 1.3  Specification ==
50 +I/O Voltage: 3.3v
69 69  
70 70  
71 -* CPU: 32-bit 48 MHz
72 -* Flash: 256KB
73 -* RAM: 64KB
74 -* Input Power Range: 1.8v ~~ 3.7v
75 -* Power Consumption: < 4uA.
76 -* Frequency Range: 150 MHz ~~ 960 MHz
77 -* Maximum Power +22 dBm constant RF output
78 -* High sensitivity: -148 dBm
79 -* Temperature:
80 -** Storage: -55 ~~ +125℃
81 -** Operating: -40 ~~ +85℃
82 -* Humidity:
83 -** Storage: 5 ~~ 95% (Non-Condensing)
84 -** Operating: 10 ~~ 95% (Non-Condensing)
85 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
86 -* LoRa Rx current: <9 mA
87 -* I/O Voltage: 3.3v
53 +== AT Command ==
88 88  
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.
89 89  
90 90  
91 -== 1.4  AT Command ==
58 +== Pin Mapping ==
92 92  
60 +[[image:image-20220523101537-1.png]]
93 93  
94 -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]].
62 +== Land Pattern ==
95 95  
64 +[[image:image-20220517072821-2.png]]
96 96  
97 97  
98 -== 1.5  Dimension ==
67 +== Part Number ==
99 99  
69 +Part Number: **LA66-XXX**
100 100  
101 -[[image:image-20220718094750-3.png]]
71 +**XX**: The default frequency band
102 102  
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
103 103  
82 += LA66 LoRaWAN Shield =
104 104  
105 -== 1.6  Pin Mapping ==
84 +LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
106 106  
107 -[[image:image-20220720111850-1.png]]
86 +== Pin Mapping & LED ==
108 108  
88 +== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
109 109  
90 +== Example: Join TTN network and send an uplink message, get downlink message. ==
110 110  
111 -== 1.7  Land Pattern ==
92 +== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
112 112  
94 +== Upgrade Firmware of LA66 LoRaWAN Shield ==
113 113  
114 -[[image:image-20220517072821-2.png]]
96 +=== what needs to be used ===
115 115  
98 +1.LA66 LoRaWAN Shield that needs to be upgraded
116 116  
100 +2.Arduino
117 117  
118 -= 2.  FAQ =
102 +3.USB TO TTL
119 119  
104 +[[image:image-20220602100052-2.png]]
120 120  
121 -== 2.1  Where to find examples of how to use LA66? ==
106 +=== Wiring Schematic ===
122 122  
108 +[[image:image-20220602101311-3.png]]
123 123  
124 -(% class="wikigeneratedid" %)
125 -Below products are made by LA66. User can use their examples as reference:
110 +LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
126 126  
127 -* [[LA66 Shield for Arduino>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.WebHome]]
128 -* [[LA66 USB Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]]
112 +GND  >>>>>>>>>>>>GND
129 129  
114 +TXD  >>>>>>>>>>>>TXD
130 130  
116 +RXD  >>>>>>>>>>>>RXD
131 131  
132 -== 2.2  How to Compile Source Code for LA66? ==
118 +JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
133 133  
120 +Connect to the PC after connecting the wires
134 134  
135 -Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
122 +[[image:image-20220602102240-4.png]]
136 136  
124 +=== Upgrade steps ===
137 137  
126 +==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
138 138  
139 -== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
128 +[[image:image-20220602102824-5.png]]
140 140  
130 +==== Press the RST switch on the LA66 LoRaWAN Shield once ====
141 141  
142 -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.
132 +[[image:image-20220602104701-12.png]]
143 143  
134 +==== Open the upgrade application software ====
144 144  
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/]]
145 145  
146 -== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
138 +[[image:image-20220602103227-6.png]]
147 147  
140 +[[image:image-20220602103357-7.png]]
148 148  
149 -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]]
142 +===== Select the COM port corresponding to USB TTL =====
150 150  
144 +[[image:image-20220602103844-8.png]]
151 151  
146 +===== Select the bin file to burn =====
152 152  
153 -= 3.  Order Info =
148 +[[image:image-20220602104144-9.png]]
154 154  
150 +[[image:image-20220602104251-10.png]]
155 155  
156 -**Part Number:**  (% style="color:blue" %)**LA66-XXX**
152 +[[image:image-20220602104402-11.png]]
157 157  
154 +===== Click to start the download =====
158 158  
159 -(% style="color:blue" %)**XXX**(%%): The default frequency band
156 +[[image:image-20220602104923-13.png]]
160 160  
161 -* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
162 -* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
163 -* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
164 -* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
165 -* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
166 -* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
167 -* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
168 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
169 -* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
158 +===== The following figure appears to prove that the burning is in progress =====
170 170  
160 +[[image:image-20220602104948-14.png]]
171 171  
162 +===== The following picture appears to prove that the burning is successful =====
172 172  
173 -= 4.  FCC Statement =
164 +[[image:image-20220602105251-15.png]]
174 174  
166 += LA66 USB LoRaWAN Adapter =
175 175  
176 -(% style="color:red" %)**FCC Caution:**
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.
177 177  
178 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
170 +Before use, please make sure that the computer has installed the CP2102 driver
179 179  
180 -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.
172 +== Pin Mapping & LED ==
181 181  
174 +== Example Send & Get Messages via LoRaWAN in PC ==
182 182  
183 -(% style="color:red" %)**IMPORTANT NOTE: **
176 +Connect the LA66 LoRa Shield to the PC
184 184  
185 -(% 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:
178 +[[image:image-20220602171217-1.png||height="615" width="915"]]
186 186  
187 -—Reorient or relocate the receiving antenna.
180 +Open the serial port tool
188 188  
189 -—Increase the separation between the equipment and receiver.
182 +[[image:image-20220602161617-8.png]]
190 190  
191 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
184 +[[image:image-20220602161718-9.png||height="529" width="927"]]
192 192  
193 -—Consult the dealer or an experienced radio/TV technician for help.
186 +Press the reset switch RST on the LA66 LoRa Shield.
194 194  
188 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
195 195  
196 -(% style="color:red" %)**FCC Radiation Exposure Statement: **
190 +[[image:image-20220602161935-10.png]]
197 197  
198 -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.
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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