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Last modified by Xiaoling on 2023/09/19 09:20
From version 150.1
edited by Edwin Chen
on 2023/06/05 14:53
Change comment: There is no comment for this version
To version 62.1
edited by Herong Lu
on 2022/06/02 17:19
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.Edwin
1 +XWiki.Lu
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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 +**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 LoRa 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 program, create and connect your things everywhere.
7 7  
11 +**LA66 **is a ready-to-use module which includes the LoRaWAN v1.0.4 protocol. 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 world unique OTAA key for LoRaWAN registration.
10 10  
11 -== 1.1  What is LA66 LoRaWAN Module ==
12 12  
13 13  
14 -(((
15 -(((
16 -[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
17 -)))
17 +== Specification ==
18 18  
19 -(((
20 -
21 -)))
19 +[[image:image-20220517072526-1.png]]
22 22  
23 -(((
24 -(% 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.
25 -)))
26 -)))
21 +Input Power Range: 1.8v ~~ 3.7v
27 27  
28 -(((
29 -(((
30 -(% 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.
31 -)))
32 -)))
23 +Power Consumption: < 4uA.
33 33  
34 -(((
35 -(((
36 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
37 -)))
25 +Frequency Range: 150 MHz ~~ 960 MHz
38 38  
39 -(((
40 -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.
41 -)))
42 -)))
27 +Maximum Power +22 dBm constant RF output
43 43  
44 -(((
45 -(((
46 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
47 -)))
48 -)))
29 +High sensitivity: -148 dBm
49 49  
31 +Temperature:
50 50  
51 -== 1.2  Features ==
33 +* Storage: -55 ~~ +125℃
34 +* Operating: -40 ~~ +85℃
52 52  
36 +Humidity:
53 53  
54 -* Support LoRaWAN v1.0.3 protocol
55 -* Support peer-to-peer protocol
56 -* TCXO crystal to ensure RF performance on low temperature
57 -* SMD Antenna pad and i-pex antenna connector
58 -* Available in different frequency LoRaWAN frequency bands.
59 -* World-wide unique OTAA keys.
60 -* AT Command via UART-TTL interface
61 -* Firmware upgradable via UART interface
62 -* Ultra-long RF range
38 +* Storage: 5 ~~ 95% (Non-Condensing)
39 +* Operating: 10 ~~ 95% (Non-Condensing)
63 63  
41 +LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
64 64  
65 -== 1.3  Specification ==
43 +LoRa Rx current: <9 mA
66 66  
45 +I/O Voltage: 3.3v
67 67  
68 -* CPU: 32-bit 48 MHz
69 -* Flash: 256KB
70 -* RAM: 64KB
71 -* Input Power Range: 1.8v ~~ 3.7v
72 -* Power Consumption: < 4uA.
73 -* Frequency Range: 150 MHz ~~ 960 MHz
74 -* Maximum Power +22 dBm constant RF output
75 -* High sensitivity: -148 dBm
76 -* Temperature:
77 -** Storage: -55 ~~ +125℃
78 -** Operating: -40 ~~ +85℃
79 -* Humidity:
80 -** Storage: 5 ~~ 95% (Non-Condensing)
81 -** Operating: 10 ~~ 95% (Non-Condensing)
82 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
83 -* LoRa Rx current: <9 mA
84 -* I/O Voltage: 3.3v
85 85  
48 +== AT Command ==
86 86  
87 -== 1.4  AT Command ==
50 +AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
88 88  
89 89  
90 -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]].
53 +== Pin Mapping ==
91 91  
55 +[[image:image-20220523101537-1.png]]
92 92  
93 -== 1.5  Dimension ==
57 +== Land Pattern ==
94 94  
59 +[[image:image-20220517072821-2.png]]
95 95  
96 -[[image:image-20220718094750-3.png]]
97 97  
62 +== Part Number ==
98 98  
99 -== 1.6  Pin Mapping ==
64 +Part Number: **LA66-XXX**
100 100  
101 -[[image:image-20220720111850-1.png]]
66 +**XX**: The default frequency band
102 102  
68 +* **AS923**: LoRaWAN AS923 band
69 +* **AU915**: LoRaWAN AU915 band
70 +* **EU433**: LoRaWAN EU433 band
71 +* **EU868**: LoRaWAN EU868 band
72 +* **KR920**: LoRaWAN KR920 band
73 +* **US915**: LoRaWAN US915 band
74 +* **IN865**: LoRaWAN IN865 band
75 +* **CN470**: LoRaWAN CN470 band
103 103  
104 -== 1.7  Land Pattern ==
77 += LA66 LoRaWAN Shield =
105 105  
79 +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-20220517072821-2.png]]
81 +== Pin Mapping & LED ==
108 108  
83 +== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
109 109  
110 -= 2.  FAQ =
85 +== Example: Join TTN network and send an uplink message, get downlink message. ==
111 111  
112 -== 2.1  Where to find examples of how to use LA66? ==
87 +== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
113 113  
89 +== Upgrade Firmware of LA66 LoRaWAN Shield ==
114 114  
115 -(% class="wikigeneratedid" %)
116 -Below products are made by LA66. User can use their examples as reference:
91 +=== what needs to be used ===
117 117  
118 -* [[LA66 Shield for Arduino>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.WebHome]]
119 -* [[LA66 USB Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]]
93 +1.LA66 LoRaWAN Shield that needs to be upgraded
120 120  
95 +2.Arduino
121 121  
122 -== 2.2  How to Compile Source Code for LA66? ==
97 +3.USB TO TTL
123 123  
99 +[[image:image-20220602100052-2.png]]
124 124  
125 -Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
101 +=== Wiring Schematic ===
126 126  
103 +[[image:image-20220602101311-3.png]]
127 127  
128 -== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
105 +LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
129 129  
107 +GND  >>>>>>>>>>>>GND
130 130  
131 -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.
109 +TXD  >>>>>>>>>>>>TXD
132 132  
111 +RXD  >>>>>>>>>>>>RXD
133 133  
134 -== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
113 +JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
135 135  
115 +Connect to the PC after connecting the wires
136 136  
137 -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]]
117 +[[image:image-20220602102240-4.png]]
138 138  
119 +=== Upgrade steps ===
139 139  
140 -== 2.5 How can i use J-LInk to debug LA66? ==
121 +==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
141 141  
123 +[[image:image-20220602102824-5.png]]
142 142  
125 +==== Press the RST switch on the LA66 LoRaWAN Shield once ====
143 143  
144 -= 3.  Order Info =
127 +[[image:image-20220602104701-12.png]]
145 145  
129 +==== Open the upgrade application software ====
146 146  
147 -**Part Number:**  (% style="color:blue" %)**LA66-XXX**
131 +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  
149 -(% style="color:blue" %)**XXX**(%%): The default frequency band
133 +[[image:image-20220602103227-6.png]]
150 150  
151 -* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
152 -* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
153 -* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
154 -* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
155 -* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
156 -* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
157 -* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
158 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
159 -* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
135 +[[image:image-20220602103357-7.png]]
160 160  
137 +===== Select the COM port corresponding to USB TTL =====
161 161  
162 -= 4.  FCC Statement =
139 +[[image:image-20220602103844-8.png]]
163 163  
141 +===== Select the bin file to burn =====
164 164  
165 -(% style="color:red" %)**FCC Caution:**
143 +[[image:image-20220602104144-9.png]]
166 166  
167 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
145 +[[image:image-20220602104251-10.png]]
168 168  
169 -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.
147 +[[image:image-20220602104402-11.png]]
170 170  
149 +===== Click to start the download =====
171 171  
172 -(% style="color:red" %)**IMPORTANT NOTE: **
151 +[[image:image-20220602104923-13.png]]
173 173  
174 -(% 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:
153 +===== The following figure appears to prove that the burning is in progress =====
175 175  
176 -—Reorient or relocate the receiving antenna.
155 +[[image:image-20220602104948-14.png]]
177 177  
178 -—Increase the separation between the equipment and receiver.
157 +===== The following picture appears to prove that the burning is successful =====
179 179  
180 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
159 +[[image:image-20220602105251-15.png]]
181 181  
182 -—Consult the dealer or an experienced radio/TV technician for help.
161 += LA66 USB LoRaWAN Adapter =
183 183  
163 +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.
184 184  
185 -(% style="color:red" %)**FCC Radiation Exposure Statement: **
165 +Before use, please make sure that the computer has installed the CP2102 driver
186 186  
187 -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.
167 +== Pin Mapping & LED ==
188 188  
189 -
169 +== Example Send & Get Messages via LoRaWAN in PC ==
170 +
171 +Connect the LA66 LoRa Shield to the PC
172 +
173 +[[image:image-20220602171217-1.png||height="615" width="915"]]
174 +
175 +Open the serial port tool
176 +
177 +[[image:image-20220602161617-8.png]]
178 +
179 +[[image:image-20220602161718-9.png||height="529" width="927"]]
180 +
181 +Press the reset switch RST on the LA66 LoRa Shield.
182 +
183 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
184 +
185 +[[image:image-20220602161935-10.png]]
186 +
187 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
188 +
189 +example: AT+SENDB=01,02,8,05820802581ea0a5
190 +
191 +[[image:image-20220602162157-11.png]]
192 +
193 +Check to see if TTN received the message
194 +
195 +[[image:image-20220602162331-12.png||height="547" width="1044"]]
196 +
197 +== Example Send & Get Messages via LoRaWAN in RPi ==
198 +
199 +Connect the LA66 LoRa Shield to the RPI
200 +
201 +[[image:image-20220602171233-2.png||height="592" width="881"]]
202 +
203 +Log in to the RPI's terminal and connect to the serial port
204 +
205 +[[image:image-20220602153146-3.png]]
206 +
207 +Press the reset switch RST on the LA66 LoRa Shield.
208 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
209 +
210 +[[image:image-20220602154928-5.png]]
211 +
212 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
213 +
214 +example: AT+SENDB=01,02,8,05820802581ea0a5
215 +
216 +[[image:image-20220602160339-6.png]]
217 +
218 +Check to see if TTN received the message
219 +
220 +[[image:image-20220602160627-7.png||height="468" width="1013"]]
221 +
222 +=== Install Minicom ===
223 +
224 +Enter the following command in the RPI terminal
225 +
226 +apt update
227 +
228 +[[image:image-20220602143155-1.png]]
229 +
230 +apt install minicom
231 +
232 +[[image:image-20220602143744-2.png]]
233 +
234 +=== Send PC's CPU/RAM usage to TTN via script. ===
235 +
236 +==== Take python as an example： ====
237 +
238 +===== Preconditions: =====
239 +
240 +1.LA66 USB LoRaWAN Adapter works fine
241 +
242 +2.LA66 USB LoRaWAN Adapter  is registered with TTN
243 +
244 +===== Steps for usage =====
245 +
246 +1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
247 +
248 +
249 +2.Run the script and see the TTN
250 +
251 +[[image:image-20220602115852-3.png]]
252 +
253 +
254 +
255 +== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
256 +
257 +
258 +== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
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